What are the current PM10 levels at Cupertino, California?

The current PM10 levels in Cupertino, California are 46.642 μg/m3.

What are the current sulfur dioxide (SO2) levels at Cupertino, California?

The current sulfur dioxide (SO2) levels in Cupertino, California are 0.422 ppb.

What are the current ozone (O3) levels at Cupertino, California?

The current ozone (O3) levels at Cupertino, California is 10.208 ppm.

What are the current nitrogen dioxide (NO2) levels at Cupertino, California?

The current nitrogen dioxide (NO2) levels at Cupertino, California is 8.404 ppb.

Real-time air quality index in Cupertino, California today

Q: What are the current PM2.5 levels in Cupertino, California?

The measured PM2.5 levels in Cupertino, California at present are 10.911 μg/m3.

Stay updated with real-time air quality in Cupertino, California featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Moderate

Cupertino, California

Last updated: ... (Local time)

Common air pollutants in Cupertino, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.91 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

46.64 μg/m³

155

255

425

605+

Ozone (O₃)

10.21 ppb

201

201+

Sulfur Dioxide (SO₂)

0.42 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

8.40 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.35 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Cupertino, California

Get Live Pollen Counts

Cupertino, California

Scroll To Air Quality Map

Track live Cupertino, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-06T02:00:00.000Z	64 \| moderate	16.142 \| fine	69.219 \| fine	13.498 \| good	0.431 \| good	15.38 \| good	0.365 \| good
2025-12-06T03:00:00.000Z	64 \| moderate	15.892 \| fine	54.526 \| good	10.763 \| good	0.407 \| good	18.564 \| good	0.485 \| good
2025-12-06T04:00:00.000Z	67 \| moderate	17.656 \| fine	65.548 \| fine	9.736 \| good	0.436 \| good	18.354 \| good	0.54 \| good
2025-12-06T05:00:00.000Z	69 \| moderate	19.236 \| fine	85.849 \| fine	6.603 \| good	0.457 \| good	20.097 \| good	0.693 \| good
2025-12-06T06:00:00.000Z	75 \| moderate	22.429 \| fine	76.986 \| fine	4.48 \| good	0.471 \| good	20.109 \| good	0.886 \| good
2025-12-06T07:00:00.000Z	79 \| moderate	24.38 \| fine	96.734 \| fine	4.995 \| good	0.51 \| good	20.627 \| good	1.021 \| good
2025-12-06T08:00:00.000Z	79 \| moderate	24.118 \| fine	100.652 \| fine	5.314 \| good	0.44 \| good	18.158 \| good	0.893 \| good
2025-12-06T09:00:00.000Z	79 \| moderate	24.027 \| fine	98.289 \| fine	6.396 \| good	0.45 \| good	18.034 \| good	0.892 \| good
2025-12-06T10:00:00.000Z	79 \| moderate	23.52 \| fine	105.045 \| fine	8.701 \| good	0.897 \| good	21.487 \| good	0.439 \| good
2025-12-06T11:00:00.000Z	60 \| moderate	14.132 \| fine	58.567 \| fine	7.975 \| good	0.85 \| good	21.583 \| good	0.383 \| good
2025-12-06T12:00:00.000Z	69 \| moderate	19.18 \| fine	53.714 \| good	5.107 \| good	0.398 \| good	6.926 \| good	0.367 \| good
2025-12-06T13:00:00.000Z	75 \| moderate	21.845 \| fine	92.638 \| fine	5.205 \| good	0.388 \| good	7.136 \| good	0.654 \| good
2025-12-06T14:00:00.000Z	71 \| moderate	19.869 \| fine	79.376 \| fine	5.731 \| good	0.508 \| good	8.987 \| good	0.697 \| good
2025-12-06T15:00:00.000Z	71 \| moderate	20.159 \| fine	87.136 \| fine	5.871 \| good	0.408 \| good	10.478 \| good	0.713 \| good
2025-12-06T16:00:00.000Z	69 \| moderate	19.064 \| fine	83.818 \| fine	4.79 \| good	0.384 \| good	10.405 \| good	0.562 \| good
2025-12-06T17:00:00.000Z	64 \| moderate	15.901 \| fine	67.111 \| fine	7.25 \| good	0.438 \| good	9.569 \| good	0.413 \| good
2025-12-06T18:00:00.000Z	66 \| moderate	16.932 \| fine	60.079 \| fine	8.133 \| good	0.504 \| good	7.713 \| good	0.35 \| good
2025-12-06T19:00:00.000Z	58 \| moderate	13.278 \| fine	59.216 \| fine	8.237 \| good	0.515 \| good	8.778 \| good	0.345 \| good
2025-12-06T20:00:00.000Z	60 \| moderate	13.636 \| fine	53.464 \| good	8.497 \| good	0.53 \| good	7.334 \| good	0.345 \| good
2025-12-06T21:00:00.000Z	58 \| moderate	13.241 \| fine	52.015 \| good	9.57 \| good	0.621 \| good	6.917 \| good	0.349 \| good
2025-12-06T22:00:00.000Z	60 \| moderate	14 \| fine	54.851 \| good	11.494 \| good	0.631 \| good	6.451 \| good	0.349 \| good
2025-12-06T23:00:00.000Z	62 \| moderate	15.301 \| fine	68.329 \| fine	12.238 \| good	0.546 \| good	6.631 \| good	0.344 \| good
2025-12-07T00:00:00.000Z	64 \| moderate	16.221 \| fine	72.28 \| fine	11.119 \| good	0.492 \| good	8.117 \| good	0.314 \| good
2025-12-07T01:00:00.000Z	64 \| moderate	16.228 \| fine	69.836 \| fine	11.609 \| good	0.447 \| good	7.478 \| good	0.309 \| good
2025-12-07T02:00:00.000Z	64 \| moderate	16.438 \| fine	69.238 \| fine	10.558 \| good	0.405 \| good	9.092 \| good	0.349 \| good
2025-12-07T03:00:00.000Z	64 \| moderate	15.971 \| fine	66.411 \| fine	8.429 \| good	0.426 \| good	11.584 \| good	0.4 \| good
2025-12-07T04:00:00.000Z	71 \| moderate	19.711 \| fine	70.541 \| fine	7.775 \| good	0.394 \| good	14.272 \| good	0.499 \| good
2025-12-07T05:00:00.000Z	64 \| moderate	16.33 \| fine	73.304 \| fine	5.488 \| good	0.42 \| good	14.905 \| good	0.589 \| good
2025-12-07T06:00:00.000Z	69 \| moderate	18.773 \| fine	66.586 \| fine	4.884 \| good	0.42 \| good	14.568 \| good	0.737 \| good
2025-12-07T07:00:00.000Z	69 \| moderate	19.421 \| fine	81.743 \| fine	3.642 \| good	0.408 \| good	12.82 \| good	0.855 \| good
2025-12-07T08:00:00.000Z	73 \| moderate	21.172 \| fine	91.05 \| fine	2.928 \| good	0.386 \| good	11.623 \| good	0.936 \| good
2025-12-07T09:00:00.000Z	77 \| moderate	22.711 \| fine	99.057 \| fine	2.757 \| good	0.39 \| good	11.832 \| good	0.933 \| good
2025-12-07T10:00:00.000Z	75 \| moderate	22.405 \| fine	97.661 \| fine	2.677 \| good	0.492 \| good	6.464 \| good	0.286 \| good
2025-12-07T11:00:00.000Z	69 \| moderate	19.458 \| fine	80.257 \| fine	3.083 \| good	0.517 \| good	5.23 \| good	0.262 \| good
2025-12-07T12:00:00.000Z	71 \| moderate	20.031 \| fine	91.393 \| fine	5.138 \| good	0.372 \| good	7.148 \| good	0.247 \| good
2025-12-07T13:00:00.000Z	71 \| moderate	20.244 \| fine	85.403 \| fine	4.347 \| good	0.379 \| good	8.296 \| good	0.489 \| good
2025-12-07T14:00:00.000Z	62 \| moderate	15.465 \| fine	66.821 \| fine	5.316 \| good	0.429 \| good	9.492 \| good	0.318 \| good
2025-12-07T15:00:00.000Z	64 \| moderate	15.559 \| fine	67.02 \| fine	2.922 \| good	0.404 \| good	9.393 \| good	0.36 \| good
2025-12-07T16:00:00.000Z	66 \| moderate	16.911 \| fine	73.912 \| fine	3.157 \| good	0.361 \| good	10.159 \| good	0.356 \| good
2025-12-07T17:00:00.000Z	62 \| moderate	15.397 \| fine	53.167 \| good	4.541 \| good	0.375 \| good	10.149 \| good	0.356 \| good
2025-12-07T18:00:00.000Z	58 \| moderate	13.34 \| fine	52.881 \| good	6.468 \| good	0.404 \| good	8.374 \| good	0.354 \| good
2025-12-07T19:00:00.000Z	56 \| moderate	12.326 \| fine	50.734 \| good	6.292 \| good	0.465 \| good	7.499 \| good	0.349 \| good
2025-12-07T20:00:00.000Z	54 \| moderate	11.44 \| good	50.53 \| good	6.515 \| good	0.478 \| good	7.931 \| good	0.375 \| good
2025-12-07T21:00:00.000Z	54 \| moderate	11.321 \| good	47.653 \| good	8.47 \| good	0.553 \| good	7.685 \| good	0.34 \| good
2025-12-07T22:00:00.000Z	52 \| moderate	10.164 \| good	35.677 \| good	11.09 \| good	0.509 \| good	6.308 \| good	0.318 \| good
2025-12-07T23:00:00.000Z	58 \| moderate	13.311 \| fine	51.328 \| good	11.883 \| good	0.514 \| good	5.483 \| good	0.309 \| good
2025-12-08T00:00:00.000Z	54 \| moderate	10.577 \| good	49.059 \| good	9.263 \| good	0.494 \| good	6.847 \| good	0.304 \| good
2025-12-08T01:00:00.000Z	54 \| moderate	10.911 \| good	46.642 \| good	10.208 \| good	0.422 \| good	8.404 \| good	0.349 \| good
2025-12-08T01:00:00.000Z	54 \| moderate	10.911 \| good	46.642 \| good	10.208 \| good	0.422 \| good	8.404 \| good	0.349 \| good
2025-12-08T02:00:00.000Z	56 \| moderate	11.911 \| good	53.234 \| good	4.232 \| good	2.969 \| good	23.493 \| good	0.269 \| good
2025-12-08T03:00:00.000Z	60 \| moderate	13.559 \| fine	61.544 \| fine	3.27 \| good	3.044 \| good	27.565 \| good	0.304 \| good
2025-12-08T04:00:00.000Z	58 \| moderate	13.117 \| fine	58.292 \| fine	4.603 \| good	3.25 \| good	27.828 \| good	0.319 \| good
2025-12-08T05:00:00.000Z	58 \| moderate	13.045 \| fine	58.251 \| fine	5.509 \| good	3.455 \| good	28.091 \| good	0.334 \| good
2025-12-08T06:00:00.000Z	56 \| moderate	11.623 \| good	51.23 \| good	7.327 \| good	3.661 \| good	28.353 \| good	0.349 \| good
2025-12-08T07:00:00.000Z	58 \| moderate	12.808 \| fine	57.482 \| fine	6.543 \| good	3.537 \| good	27.515 \| good	0.339 \| good
2025-12-08T08:00:00.000Z	60 \| moderate	14.115 \| fine	63.123 \| fine	4.425 \| good	3.414 \| good	26.676 \| good	0.329 \| good
2025-12-08T09:00:00.000Z	60 \| moderate	13.94 \| fine	62.266 \| fine	3.249 \| good	3.291 \| good	25.838 \| good	0.319 \| good
2025-12-08T10:00:00.000Z	56 \| moderate	12.498 \| fine	56.321 \| fine	3.514 \| good	3.022 \| good	24.476 \| good	0.307 \| good
2025-12-08T11:00:00.000Z	60 \| moderate	14.332 \| fine	64 \| fine	4.328 \| good	2.754 \| good	23.115 \| good	0.294 \| good
2025-12-08T12:00:00.000Z	66 \| moderate	17.232 \| fine	75.891 \| fine	3.539 \| good	2.485 \| good	21.754 \| good	0.282 \| good
2025-12-08T13:00:00.000Z	69 \| moderate	18.615 \| fine	82.69 \| fine	3.405 \| good	2.397 \| good	21.543 \| good	0.285 \| good
2025-12-08T14:00:00.000Z	69 \| moderate	18.519 \| fine	81.447 \| fine	3.345 \| good	2.309 \| good	21.333 \| good	0.289 \| good
2025-12-08T15:00:00.000Z	69 \| moderate	19.323 \| fine	84.571 \| fine	3.064 \| good	2.22 \| good	21.122 \| good	0.292 \| good
2025-12-08T16:00:00.000Z	67 \| moderate	17.772 \| fine	78.962 \| fine	5.003 \| good	2.515 \| good	19.2 \| good	0.28 \| good
2025-12-08T17:00:00.000Z	66 \| moderate	16.78 \| fine	73.815 \| fine	8.34 \| good	2.81 \| good	17.277 \| good	0.269 \| good
2025-12-08T18:00:00.000Z	62 \| moderate	14.555 \| fine	65.618 \| fine	10.602 \| good	3.105 \| good	15.355 \| good	0.257 \| good
2025-12-08T19:00:00.000Z	60 \| moderate	13.856 \| fine	62.308 \| fine	12.65 \| good	3.054 \| good	13.635 \| good	0.231 \| good
2025-12-08T20:00:00.000Z	66 \| moderate	17.247 \| fine	76.08 \| fine	14.786 \| good	3.004 \| good	11.915 \| good	0.204 \| good
2025-12-08T21:00:00.000Z	64 \| moderate	15.945 \| fine	70.313 \| fine	15.793 \| good	2.954 \| good	10.195 \| good	0.177 \| good
2025-12-08T22:00:00.000Z	54 \| moderate	11.353 \| good	50.447 \| good	15.988 \| good	2.994 \| good	11.82 \| good	0.183 \| good
2025-12-08T23:00:00.000Z	56 \| moderate	12.412 \| fine	56.525 \| fine	13.988 \| good	3.035 \| good	13.446 \| good	0.19 \| good
2025-12-09T00:00:00.000Z	58 \| moderate	13.121 \| fine	59.741 \| fine	7.83 \| good	3.075 \| good	15.071 \| good	0.197 \| good
2025-12-09T01:00:00.000Z	62 \| moderate	14.973 \| fine	66.352 \| fine	2.717 \| good	3.028 \| good	19.27 \| good	0.232 \| good
2025-12-09T02:00:00.000Z	62 \| moderate	15.186 \| fine	67.473 \| fine	2.982 \| good	2.981 \| good	23.47 \| good	0.267 \| good
2025-12-09T03:00:00.000Z	62 \| moderate	14.921 \| fine	67.419 \| fine	3.032 \| good	2.934 \| good	27.669 \| good	0.303 \| good
2025-12-09T04:00:00.000Z	66 \| moderate	16.515 \| fine	73.736 \| fine	3.257 \| good	3.092 \| good	27.783 \| good	0.319 \| good
2025-12-09T05:00:00.000Z	67 \| moderate	17.797 \| fine	79.381 \| fine	3.779 \| good	3.249 \| good	27.897 \| good	0.336 \| good
2025-12-09T06:00:00.000Z	66 \| moderate	17.483 \| fine	77.751 \| fine	3.912 \| good	3.407 \| good	28.01 \| good	0.353 \| good
2025-12-09T07:00:00.000Z	62 \| moderate	15.299 \| fine	67.975 \| fine	3.853 \| good	3.268 \| good	26.874 \| good	0.351 \| good
2025-12-09T08:00:00.000Z	58 \| moderate	13.14 \| fine	59.609 \| fine	4.229 \| good	3.129 \| good	25.737 \| good	0.349 \| good
2025-12-09T09:00:00.000Z	54 \| moderate	11.361 \| good	50.421 \| good	3.394 \| good	2.99 \| good	24.6 \| good	0.347 \| good
2025-12-09T10:00:00.000Z	54 \| moderate	10.848 \| good	48.422 \| good	4.283 \| good	2.729 \| good	23.218 \| good	0.331 \| good
2025-12-09T11:00:00.000Z	52 \| moderate	10.444 \| good	46.185 \| good	4.382 \| good	2.467 \| good	21.837 \| good	0.316 \| good
2025-12-09T12:00:00.000Z	56 \| moderate	11.584 \| good	52.047 \| good	3.67 \| good	2.206 \| good	20.455 \| good	0.301 \| good
2025-12-09T13:00:00.000Z	58 \| moderate	12.805 \| fine	57.506 \| fine	3.021 \| good	2.326 \| good	20.885 \| good	0.294 \| good
2025-12-09T14:00:00.000Z	56 \| moderate	11.619 \| good	52.296 \| good	3.219 \| good	2.445 \| good	21.316 \| good	0.288 \| good
2025-12-09T15:00:00.000Z	58 \| moderate	13.221 \| fine	59.915 \| fine	2.884 \| good	2.565 \| good	21.746 \| good	0.281 \| good
2025-12-09T16:00:00.000Z	60 \| moderate	14.167 \| fine	63.822 \| fine	2.577 \| good	2.645 \| good	19.543 \| good	0.283 \| good
2025-12-09T17:00:00.000Z	60 \| moderate	14.053 \| fine	62.559 \| fine	4.457 \| good	2.725 \| good	17.341 \| good	0.285 \| good
2025-12-09T18:00:00.000Z	60 \| moderate	14.268 \| fine	64.233 \| fine	6.175 \| good	2.804 \| good	15.138 \| good	0.288 \| good
2025-12-09T19:00:00.000Z	58 \| moderate	12.908 \| fine	58.504 \| fine	9.665 \| good	2.832 \| good	13.37 \| good	0.247 \| good
2025-12-09T20:00:00.000Z	62 \| moderate	14.594 \| fine	65.116 \| fine	13.376 \| good	2.859 \| good	11.602 \| good	0.206 \| good
2025-12-09T21:00:00.000Z	64 \| moderate	16.044 \| fine	70.852 \| fine	13.09 \| good	2.887 \| good	9.833 \| good	0.165 \| good
2025-12-09T22:00:00.000Z	56 \| moderate	12.242 \| fine	55.559 \| fine	11.74 \| good	2.756 \| good	11.066 \| good	0.165 \| good
2025-12-09T23:00:00.000Z	60 \| moderate	14.059 \| fine	62.418 \| fine	8.802 \| good	2.626 \| good	12.299 \| good	0.165 \| good
2025-12-10T00:00:00.000Z	52 \| moderate	10.263 \| good	12.086 \| good	21.31 \| good	2.497 \| good	13.505 \| good	0.165 \| good
2025-12-10T01:00:00.000Z	49 \| good	8.669 \| good	37.832 \| good	3.845 \| good	2.579 \| good	17.442 \| good	0.203 \| good

Cupertino

Empower business decisions with accurate air quality data

Cupertino, California air quality map: Real-time AQI near you

0.26ppm

How accurate is California, USA air quality data?

Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How frequently is the air quality data for Cupertino, California updated?

Air quality data for Cupertino, California is updated on an hourly basis.

When did Cupertino, California experience the worst air quality in the last 24 hours?

The worst air quality in Cupertino, California was recorded at 09:00:00 on 2025-12-07.

When did Cupertino, California have its best air quality in the last 24 hours?

The best air quality in Cupertino, California was recorded at 10:00:00 on 2025-12-07.

What is the real-time air quality index for Cupertino, California?

The real-time air quality index in Cupertino, California is 54, currently categorized as Moderate.

Which pollutant is found most often in Cupertino, California?

The most common pollutant in Cupertino, California is PM2.5.

What can I do if the air quality in Cupertino, California is poor?

If the air quality in Cupertino, California is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Cupertino, California?

The measured PM_2.5 levels in Cupertino, California at present are 10.911 μg/m³.

What are the current PM₁₀ levels at Cupertino, California?

The current PM₁₀ levels in Cupertino, California are 46.642 μg/m³.

What are the current carbon monoxide (CO) levels at Cupertino, California?

The current carbon monoxide (CO) level in Cupertino, California is 0.349 ppm.

What are the current sulfur dioxide (SO₂) levels at Cupertino, California?

The current sulfur dioxide (SO₂) levels in Cupertino, California are 0.422 ppb.

What are the current ozone (O₃) levels at Cupertino, California?

The current ozone (O₃) levels at Cupertino, California is 10.208 ppm.

What are the current nitrogen dioxide (NO₂) levels at Cupertino, California?

The current nitrogen dioxide (NO₂) levels at Cupertino, California is 8.404 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-06T02:00:00.000Z	64 \| moderate	16.142 \| fine	69.219 \| fine	13.498 \| good	0.431 \| good	15.38 \| good	0.365 \| good
2025-12-06T03:00:00.000Z	64 \| moderate	15.892 \| fine	54.526 \| good	10.763 \| good	0.407 \| good	18.564 \| good	0.485 \| good
2025-12-06T04:00:00.000Z	67 \| moderate	17.656 \| fine	65.548 \| fine	9.736 \| good	0.436 \| good	18.354 \| good	0.54 \| good
2025-12-06T05:00:00.000Z	69 \| moderate	19.236 \| fine	85.849 \| fine	6.603 \| good	0.457 \| good	20.097 \| good	0.693 \| good
2025-12-06T06:00:00.000Z	75 \| moderate	22.429 \| fine	76.986 \| fine	4.48 \| good	0.471 \| good	20.109 \| good	0.886 \| good
2025-12-06T07:00:00.000Z	79 \| moderate	24.38 \| fine	96.734 \| fine	4.995 \| good	0.51 \| good	20.627 \| good	1.021 \| good
2025-12-06T08:00:00.000Z	79 \| moderate	24.118 \| fine	100.652 \| fine	5.314 \| good	0.44 \| good	18.158 \| good	0.893 \| good
2025-12-06T09:00:00.000Z	79 \| moderate	24.027 \| fine	98.289 \| fine	6.396 \| good	0.45 \| good	18.034 \| good	0.892 \| good
2025-12-06T10:00:00.000Z	79 \| moderate	23.52 \| fine	105.045 \| fine	8.701 \| good	0.897 \| good	21.487 \| good	0.439 \| good
2025-12-06T11:00:00.000Z	60 \| moderate	14.132 \| fine	58.567 \| fine	7.975 \| good	0.85 \| good	21.583 \| good	0.383 \| good
2025-12-06T12:00:00.000Z	69 \| moderate	19.18 \| fine	53.714 \| good	5.107 \| good	0.398 \| good	6.926 \| good	0.367 \| good
2025-12-06T13:00:00.000Z	75 \| moderate	21.845 \| fine	92.638 \| fine	5.205 \| good	0.388 \| good	7.136 \| good	0.654 \| good
2025-12-06T14:00:00.000Z	71 \| moderate	19.869 \| fine	79.376 \| fine	5.731 \| good	0.508 \| good	8.987 \| good	0.697 \| good
2025-12-06T15:00:00.000Z	71 \| moderate	20.159 \| fine	87.136 \| fine	5.871 \| good	0.408 \| good	10.478 \| good	0.713 \| good
2025-12-06T16:00:00.000Z	69 \| moderate	19.064 \| fine	83.818 \| fine	4.79 \| good	0.384 \| good	10.405 \| good	0.562 \| good
2025-12-06T17:00:00.000Z	64 \| moderate	15.901 \| fine	67.111 \| fine	7.25 \| good	0.438 \| good	9.569 \| good	0.413 \| good
2025-12-06T18:00:00.000Z	66 \| moderate	16.932 \| fine	60.079 \| fine	8.133 \| good	0.504 \| good	7.713 \| good	0.35 \| good
2025-12-06T19:00:00.000Z	58 \| moderate	13.278 \| fine	59.216 \| fine	8.237 \| good	0.515 \| good	8.778 \| good	0.345 \| good
2025-12-06T20:00:00.000Z	60 \| moderate	13.636 \| fine	53.464 \| good	8.497 \| good	0.53 \| good	7.334 \| good	0.345 \| good
2025-12-06T21:00:00.000Z	58 \| moderate	13.241 \| fine	52.015 \| good	9.57 \| good	0.621 \| good	6.917 \| good	0.349 \| good
2025-12-06T22:00:00.000Z	60 \| moderate	14 \| fine	54.851 \| good	11.494 \| good	0.631 \| good	6.451 \| good	0.349 \| good
2025-12-06T23:00:00.000Z	62 \| moderate	15.301 \| fine	68.329 \| fine	12.238 \| good	0.546 \| good	6.631 \| good	0.344 \| good
2025-12-07T00:00:00.000Z	64 \| moderate	16.221 \| fine	72.28 \| fine	11.119 \| good	0.492 \| good	8.117 \| good	0.314 \| good
2025-12-07T01:00:00.000Z	64 \| moderate	16.228 \| fine	69.836 \| fine	11.609 \| good	0.447 \| good	7.478 \| good	0.309 \| good
2025-12-07T02:00:00.000Z	64 \| moderate	16.438 \| fine	69.238 \| fine	10.558 \| good	0.405 \| good	9.092 \| good	0.349 \| good
2025-12-07T03:00:00.000Z	64 \| moderate	15.971 \| fine	66.411 \| fine	8.429 \| good	0.426 \| good	11.584 \| good	0.4 \| good
2025-12-07T04:00:00.000Z	71 \| moderate	19.711 \| fine	70.541 \| fine	7.775 \| good	0.394 \| good	14.272 \| good	0.499 \| good
2025-12-07T05:00:00.000Z	64 \| moderate	16.33 \| fine	73.304 \| fine	5.488 \| good	0.42 \| good	14.905 \| good	0.589 \| good
2025-12-07T06:00:00.000Z	69 \| moderate	18.773 \| fine	66.586 \| fine	4.884 \| good	0.42 \| good	14.568 \| good	0.737 \| good
2025-12-07T07:00:00.000Z	69 \| moderate	19.421 \| fine	81.743 \| fine	3.642 \| good	0.408 \| good	12.82 \| good	0.855 \| good
2025-12-07T08:00:00.000Z	73 \| moderate	21.172 \| fine	91.05 \| fine	2.928 \| good	0.386 \| good	11.623 \| good	0.936 \| good
2025-12-07T09:00:00.000Z	77 \| moderate	22.711 \| fine	99.057 \| fine	2.757 \| good	0.39 \| good	11.832 \| good	0.933 \| good
2025-12-07T10:00:00.000Z	75 \| moderate	22.405 \| fine	97.661 \| fine	2.677 \| good	0.492 \| good	6.464 \| good	0.286 \| good
2025-12-07T11:00:00.000Z	69 \| moderate	19.458 \| fine	80.257 \| fine	3.083 \| good	0.517 \| good	5.23 \| good	0.262 \| good
2025-12-07T12:00:00.000Z	71 \| moderate	20.031 \| fine	91.393 \| fine	5.138 \| good	0.372 \| good	7.148 \| good	0.247 \| good
2025-12-07T13:00:00.000Z	71 \| moderate	20.244 \| fine	85.403 \| fine	4.347 \| good	0.379 \| good	8.296 \| good	0.489 \| good
2025-12-07T14:00:00.000Z	62 \| moderate	15.465 \| fine	66.821 \| fine	5.316 \| good	0.429 \| good	9.492 \| good	0.318 \| good
2025-12-07T15:00:00.000Z	64 \| moderate	15.559 \| fine	67.02 \| fine	2.922 \| good	0.404 \| good	9.393 \| good	0.36 \| good
2025-12-07T16:00:00.000Z	66 \| moderate	16.911 \| fine	73.912 \| fine	3.157 \| good	0.361 \| good	10.159 \| good	0.356 \| good
2025-12-07T17:00:00.000Z	62 \| moderate	15.397 \| fine	53.167 \| good	4.541 \| good	0.375 \| good	10.149 \| good	0.356 \| good
2025-12-07T18:00:00.000Z	58 \| moderate	13.34 \| fine	52.881 \| good	6.468 \| good	0.404 \| good	8.374 \| good	0.354 \| good
2025-12-07T19:00:00.000Z	56 \| moderate	12.326 \| fine	50.734 \| good	6.292 \| good	0.465 \| good	7.499 \| good	0.349 \| good
2025-12-07T20:00:00.000Z	54 \| moderate	11.44 \| good	50.53 \| good	6.515 \| good	0.478 \| good	7.931 \| good	0.375 \| good
2025-12-07T21:00:00.000Z	54 \| moderate	11.321 \| good	47.653 \| good	8.47 \| good	0.553 \| good	7.685 \| good	0.34 \| good
2025-12-07T22:00:00.000Z	52 \| moderate	10.164 \| good	35.677 \| good	11.09 \| good	0.509 \| good	6.308 \| good	0.318 \| good
2025-12-07T23:00:00.000Z	58 \| moderate	13.311 \| fine	51.328 \| good	11.883 \| good	0.514 \| good	5.483 \| good	0.309 \| good
2025-12-08T00:00:00.000Z	54 \| moderate	10.577 \| good	49.059 \| good	9.263 \| good	0.494 \| good	6.847 \| good	0.304 \| good
2025-12-08T01:00:00.000Z	54 \| moderate	10.911 \| good	46.642 \| good	10.208 \| good	0.422 \| good	8.404 \| good	0.349 \| good
2025-12-08T01:00:00.000Z	54 \| moderate	10.911 \| good	46.642 \| good	10.208 \| good	0.422 \| good	8.404 \| good	0.349 \| good
2025-12-08T02:00:00.000Z	56 \| moderate	11.911 \| good	53.234 \| good	4.232 \| good	2.969 \| good	23.493 \| good	0.269 \| good
2025-12-08T03:00:00.000Z	60 \| moderate	13.559 \| fine	61.544 \| fine	3.27 \| good	3.044 \| good	27.565 \| good	0.304 \| good
2025-12-08T04:00:00.000Z	58 \| moderate	13.117 \| fine	58.292 \| fine	4.603 \| good	3.25 \| good	27.828 \| good	0.319 \| good
2025-12-08T05:00:00.000Z	58 \| moderate	13.045 \| fine	58.251 \| fine	5.509 \| good	3.455 \| good	28.091 \| good	0.334 \| good
2025-12-08T06:00:00.000Z	56 \| moderate	11.623 \| good	51.23 \| good	7.327 \| good	3.661 \| good	28.353 \| good	0.349 \| good
2025-12-08T07:00:00.000Z	58 \| moderate	12.808 \| fine	57.482 \| fine	6.543 \| good	3.537 \| good	27.515 \| good	0.339 \| good
2025-12-08T08:00:00.000Z	60 \| moderate	14.115 \| fine	63.123 \| fine	4.425 \| good	3.414 \| good	26.676 \| good	0.329 \| good
2025-12-08T09:00:00.000Z	60 \| moderate	13.94 \| fine	62.266 \| fine	3.249 \| good	3.291 \| good	25.838 \| good	0.319 \| good
2025-12-08T10:00:00.000Z	56 \| moderate	12.498 \| fine	56.321 \| fine	3.514 \| good	3.022 \| good	24.476 \| good	0.307 \| good
2025-12-08T11:00:00.000Z	60 \| moderate	14.332 \| fine	64 \| fine	4.328 \| good	2.754 \| good	23.115 \| good	0.294 \| good
2025-12-08T12:00:00.000Z	66 \| moderate	17.232 \| fine	75.891 \| fine	3.539 \| good	2.485 \| good	21.754 \| good	0.282 \| good
2025-12-08T13:00:00.000Z	69 \| moderate	18.615 \| fine	82.69 \| fine	3.405 \| good	2.397 \| good	21.543 \| good	0.285 \| good
2025-12-08T14:00:00.000Z	69 \| moderate	18.519 \| fine	81.447 \| fine	3.345 \| good	2.309 \| good	21.333 \| good	0.289 \| good
2025-12-08T15:00:00.000Z	69 \| moderate	19.323 \| fine	84.571 \| fine	3.064 \| good	2.22 \| good	21.122 \| good	0.292 \| good
2025-12-08T16:00:00.000Z	67 \| moderate	17.772 \| fine	78.962 \| fine	5.003 \| good	2.515 \| good	19.2 \| good	0.28 \| good
2025-12-08T17:00:00.000Z	66 \| moderate	16.78 \| fine	73.815 \| fine	8.34 \| good	2.81 \| good	17.277 \| good	0.269 \| good
2025-12-08T18:00:00.000Z	62 \| moderate	14.555 \| fine	65.618 \| fine	10.602 \| good	3.105 \| good	15.355 \| good	0.257 \| good
2025-12-08T19:00:00.000Z	60 \| moderate	13.856 \| fine	62.308 \| fine	12.65 \| good	3.054 \| good	13.635 \| good	0.231 \| good
2025-12-08T20:00:00.000Z	66 \| moderate	17.247 \| fine	76.08 \| fine	14.786 \| good	3.004 \| good	11.915 \| good	0.204 \| good
2025-12-08T21:00:00.000Z	64 \| moderate	15.945 \| fine	70.313 \| fine	15.793 \| good	2.954 \| good	10.195 \| good	0.177 \| good
2025-12-08T22:00:00.000Z	54 \| moderate	11.353 \| good	50.447 \| good	15.988 \| good	2.994 \| good	11.82 \| good	0.183 \| good
2025-12-08T23:00:00.000Z	56 \| moderate	12.412 \| fine	56.525 \| fine	13.988 \| good	3.035 \| good	13.446 \| good	0.19 \| good
2025-12-09T00:00:00.000Z	58 \| moderate	13.121 \| fine	59.741 \| fine	7.83 \| good	3.075 \| good	15.071 \| good	0.197 \| good
2025-12-09T01:00:00.000Z	62 \| moderate	14.973 \| fine	66.352 \| fine	2.717 \| good	3.028 \| good	19.27 \| good	0.232 \| good
2025-12-09T02:00:00.000Z	62 \| moderate	15.186 \| fine	67.473 \| fine	2.982 \| good	2.981 \| good	23.47 \| good	0.267 \| good
2025-12-09T03:00:00.000Z	62 \| moderate	14.921 \| fine	67.419 \| fine	3.032 \| good	2.934 \| good	27.669 \| good	0.303 \| good
2025-12-09T04:00:00.000Z	66 \| moderate	16.515 \| fine	73.736 \| fine	3.257 \| good	3.092 \| good	27.783 \| good	0.319 \| good
2025-12-09T05:00:00.000Z	67 \| moderate	17.797 \| fine	79.381 \| fine	3.779 \| good	3.249 \| good	27.897 \| good	0.336 \| good
2025-12-09T06:00:00.000Z	66 \| moderate	17.483 \| fine	77.751 \| fine	3.912 \| good	3.407 \| good	28.01 \| good	0.353 \| good
2025-12-09T07:00:00.000Z	62 \| moderate	15.299 \| fine	67.975 \| fine	3.853 \| good	3.268 \| good	26.874 \| good	0.351 \| good
2025-12-09T08:00:00.000Z	58 \| moderate	13.14 \| fine	59.609 \| fine	4.229 \| good	3.129 \| good	25.737 \| good	0.349 \| good
2025-12-09T09:00:00.000Z	54 \| moderate	11.361 \| good	50.421 \| good	3.394 \| good	2.99 \| good	24.6 \| good	0.347 \| good
2025-12-09T10:00:00.000Z	54 \| moderate	10.848 \| good	48.422 \| good	4.283 \| good	2.729 \| good	23.218 \| good	0.331 \| good
2025-12-09T11:00:00.000Z	52 \| moderate	10.444 \| good	46.185 \| good	4.382 \| good	2.467 \| good	21.837 \| good	0.316 \| good
2025-12-09T12:00:00.000Z	56 \| moderate	11.584 \| good	52.047 \| good	3.67 \| good	2.206 \| good	20.455 \| good	0.301 \| good
2025-12-09T13:00:00.000Z	58 \| moderate	12.805 \| fine	57.506 \| fine	3.021 \| good	2.326 \| good	20.885 \| good	0.294 \| good
2025-12-09T14:00:00.000Z	56 \| moderate	11.619 \| good	52.296 \| good	3.219 \| good	2.445 \| good	21.316 \| good	0.288 \| good
2025-12-09T15:00:00.000Z	58 \| moderate	13.221 \| fine	59.915 \| fine	2.884 \| good	2.565 \| good	21.746 \| good	0.281 \| good
2025-12-09T16:00:00.000Z	60 \| moderate	14.167 \| fine	63.822 \| fine	2.577 \| good	2.645 \| good	19.543 \| good	0.283 \| good
2025-12-09T17:00:00.000Z	60 \| moderate	14.053 \| fine	62.559 \| fine	4.457 \| good	2.725 \| good	17.341 \| good	0.285 \| good
2025-12-09T18:00:00.000Z	60 \| moderate	14.268 \| fine	64.233 \| fine	6.175 \| good	2.804 \| good	15.138 \| good	0.288 \| good
2025-12-09T19:00:00.000Z	58 \| moderate	12.908 \| fine	58.504 \| fine	9.665 \| good	2.832 \| good	13.37 \| good	0.247 \| good
2025-12-09T20:00:00.000Z	62 \| moderate	14.594 \| fine	65.116 \| fine	13.376 \| good	2.859 \| good	11.602 \| good	0.206 \| good
2025-12-09T21:00:00.000Z	64 \| moderate	16.044 \| fine	70.852 \| fine	13.09 \| good	2.887 \| good	9.833 \| good	0.165 \| good
2025-12-09T22:00:00.000Z	56 \| moderate	12.242 \| fine	55.559 \| fine	11.74 \| good	2.756 \| good	11.066 \| good	0.165 \| good
2025-12-09T23:00:00.000Z	60 \| moderate	14.059 \| fine	62.418 \| fine	8.802 \| good	2.626 \| good	12.299 \| good	0.165 \| good
2025-12-10T00:00:00.000Z	52 \| moderate	10.263 \| good	12.086 \| good	21.31 \| good	2.497 \| good	13.505 \| good	0.165 \| good
2025-12-10T01:00:00.000Z	49 \| good	8.669 \| good	37.832 \| good	3.845 \| good	2.579 \| good	17.442 \| good	0.203 \| good

Real-time air quality index in Cupertino, California today

Common air pollutants in Cupertino, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Cupertino, California air quality forecast and history

Empower business decisions with accurate air quality data

Cupertino, California air quality map: Real-time AQI near you

Air quality in nearby cities

Sunnyvale, California

Saratoga, California

Santa Clara, California

Campbell, California

Mountain View City, California

Los Altos, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Cupertino, California updated?

When did Cupertino, California experience the worst air quality in the last 24 hours?

When did Cupertino, California have its best air quality in the last 24 hours?

What is the real-time air quality index for Cupertino, California?

Which pollutant is found most often in Cupertino, California?

What can I do if the air quality in Cupertino, California is poor?

What are the current PM2.5 levels in Cupertino, California?

What are the current PM10 levels at Cupertino, California?

What are the current carbon monoxide (CO) levels at Cupertino, California?

What are the current sulfur dioxide (SO2) levels at Cupertino, California?

What are the current ozone (O3) levels at Cupertino, California?

What are the current nitrogen dioxide (NO2) levels at Cupertino, California?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Cupertino, California?

What are the current PM₁₀ levels at Cupertino, California?

What are the current sulfur dioxide (SO₂) levels at Cupertino, California?

What are the current ozone (O₃) levels at Cupertino, California?

What are the current nitrogen dioxide (NO₂) levels at Cupertino, California?