What are the current PM10 levels at Cupertino, California?

The current PM10 levels in Cupertino, California are 22.159 μg/m3.

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

The current sulfur dioxide (SO2) levels in Cupertino, California are 0.481 ppb.

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

The current ozone (O3) levels at Cupertino, California is 47.198 ppm.

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

The current nitrogen dioxide (NO2) levels at Cupertino, California is 5.309 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 4.9 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)

Good

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)

4.90 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

22.16 μg/m³

155

255

425

605+

Ozone (O₃)

47.20 ppb

201

201+

Sulfur Dioxide (SO₂)

0.48 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

5.31 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 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
2026-06-11T03:00:00.000Z	40 \| good	5.755 \| good	25.449 \| good	43.307 \| good	0.565 \| good	3.098 \| good	0.234 \| good
2026-06-11T04:00:00.000Z	49 \| good	9.075 \| good	40.651 \| good	39.281 \| good	0.51 \| good	5.69 \| good	0.21 \| good
2026-06-11T05:00:00.000Z	52 \| moderate	9.669 \| good	40.921 \| good	38.244 \| good	0.415 \| good	9.254 \| good	0.3 \| good
2026-06-11T06:00:00.000Z	44 \| good	7.875 \| good	36.544 \| good	32.288 \| good	0.667 \| good	10.752 \| good	0.337 \| good
2026-06-11T07:00:00.000Z	49 \| good	8.761 \| good	35.859 \| good	30.278 \| good	0.564 \| good	12.15 \| good	0.377 \| good
2026-06-11T08:00:00.000Z	54 \| moderate	10.592 \| good	45.945 \| good	26.667 \| good	0.758 \| good	12.061 \| good	0.402 \| good
2026-06-11T09:00:00.000Z	54 \| moderate	11.292 \| good	50.194 \| good	24.174 \| good	0.563 \| good	14.048 \| good	0.402 \| good
2026-06-11T10:00:00.000Z	54 \| moderate	10.905 \| good	40.707 \| good	23.28 \| good	0.812 \| good	11.726 \| good	0.37 \| good
2026-06-11T11:00:00.000Z	54 \| moderate	11.405 \| good	47.358 \| good	20.991 \| good	0.471 \| good	10.138 \| good	0.347 \| good
2026-06-11T12:00:00.000Z	52 \| moderate	10.235 \| good	42.346 \| good	21.439 \| good	0.45 \| good	9.855 \| good	0.347 \| good
2026-06-11T13:00:00.000Z	56 \| moderate	12.172 \| fine	53.289 \| good	20.866 \| good	0.597 \| good	10.593 \| good	0.39 \| good
2026-06-11T14:00:00.000Z	54 \| moderate	10.833 \| good	44.337 \| good	16.6 \| good	0.431 \| good	12.734 \| good	0.488 \| good
2026-06-11T15:00:00.000Z	49 \| good	8.96 \| good	37.65 \| good	17.578 \| good	0.562 \| good	13.624 \| good	0.571 \| good
2026-06-11T16:00:00.000Z	52 \| moderate	9.713 \| good	39.838 \| good	19.956 \| good	0.502 \| good	15.611 \| good	0.625 \| good
2026-06-11T17:00:00.000Z	60 \| moderate	14.486 \| fine	58.538 \| fine	25.613 \| good	0.722 \| good	16.797 \| good	0.582 \| good
2026-06-11T18:00:00.000Z	56 \| moderate	12.171 \| fine	47.687 \| good	41.747 \| good	0.836 \| good	9.312 \| good	0.296 \| good
2026-06-11T19:00:00.000Z	54 \| moderate	11.208 \| good	49.659 \| good	44.429 \| good	0.657 \| good	6.171 \| good	0.251 \| good
2026-06-11T20:00:00.000Z	49 \| good	9.027 \| good	40.961 \| good	51.333 \| good	0.618 \| good	5.37 \| good	0.201 \| good
2026-06-11T21:00:00.000Z	48 \| good	6.867 \| good	31.779 \| good	52.305 \| good	0.645 \| good	4.857 \| good	0.213 \| good
2026-06-11T22:00:00.000Z	54 \| moderate	6.691 \| good	34.218 \| good	55.649 \| fine	0.587 \| good	5.063 \| good	0.236 \| good
2026-06-11T23:00:00.000Z	61 \| moderate	8.9 \| good	39.285 \| good	58.042 \| fine	0.559 \| good	5.108 \| good	0.236 \| good
2026-06-12T00:00:00.000Z	61 \| moderate	8.738 \| good	43.689 \| good	57.884 \| fine	0.605 \| good	5.648 \| good	0.26 \| good
2026-06-12T01:00:00.000Z	61 \| moderate	8.74 \| good	41.167 \| good	57.618 \| fine	0.764 \| good	5.445 \| good	0.236 \| good
2026-06-12T02:00:00.000Z	50 \| good	9.415 \| good	39.502 \| good	54.384 \| good	0.632 \| good	6.079 \| good	0.268 \| good
2026-06-12T03:00:00.000Z	56 \| moderate	12.273 \| fine	53.534 \| good	46.101 \| good	0.502 \| good	5.29 \| good	0.268 \| good
2026-06-12T04:00:00.000Z	54 \| moderate	11.35 \| good	47.435 \| good	43.705 \| good	0.548 \| good	7.65 \| good	0.268 \| good
2026-06-12T05:00:00.000Z	52 \| moderate	9.826 \| good	46.362 \| good	37.473 \| good	0.747 \| good	10.673 \| good	0.304 \| good
2026-06-12T06:00:00.000Z	56 \| moderate	12.488 \| fine	52.879 \| good	36.206 \| good	0.699 \| good	8.652 \| good	0.314 \| good
2026-06-12T07:00:00.000Z	52 \| moderate	10.014 \| good	40.445 \| good	32.679 \| good	0.693 \| good	5.141 \| good	0.236 \| good
2026-06-12T08:00:00.000Z	44 \| good	7.877 \| good	34.532 \| good	33.795 \| good	0.482 \| good	3.943 \| good	0.236 \| good
2026-06-12T09:00:00.000Z	38 \| good	7.069 \| good	29.322 \| good	34.358 \| good	0.616 \| good	3.691 \| good	0.236 \| good
2026-06-12T10:00:00.000Z	33 \| good	5.954 \| good	23.686 \| good	32.292 \| good	0.462 \| good	3.46 \| good	0.205 \| good
2026-06-12T11:00:00.000Z	28 \| good	5.364 \| good	26.506 \| good	29.827 \| good	0.562 \| good	2.758 \| good	0.205 \| good
2026-06-12T12:00:00.000Z	33 \| good	5.582 \| good	23.943 \| good	29.801 \| good	0.61 \| good	2.729 \| good	0.236 \| good
2026-06-12T13:00:00.000Z	33 \| good	6.12 \| good	21.428 \| good	29.423 \| good	0.638 \| good	3.889 \| good	0.285 \| good
2026-06-12T14:00:00.000Z	33 \| good	6.454 \| good	25.483 \| good	24.996 \| good	0.558 \| good	5.927 \| good	0.268 \| good
2026-06-12T15:00:00.000Z	27 \| good	5.179 \| good	20.208 \| good	23.006 \| good	0.658 \| good	8.549 \| good	0.318 \| good
2026-06-12T16:00:00.000Z	33 \| good	5.808 \| good	25.822 \| good	23.823 \| good	0.714 \| good	9.474 \| good	0.363 \| good
2026-06-12T17:00:00.000Z	38 \| good	7.155 \| good	37.401 \| good	24.058 \| good	0.758 \| good	9.698 \| good	0.332 \| good
2026-06-12T18:00:00.000Z	51 \| moderate	8.95 \| good	55.831 \| fine	27.019 \| good	0.573 \| good	8.92 \| good	0.332 \| good
2026-06-12T19:00:00.000Z	49 \| good	8.875 \| good	42.872 \| good	34.287 \| good	0.572 \| good	8.534 \| good	0.332 \| good
2026-06-12T20:00:00.000Z	44 \| good	8.456 \| good	41.796 \| good	42.557 \| good	1.011 \| good	6.804 \| good	0.291 \| good
2026-06-12T21:00:00.000Z	49 \| good	9.195 \| good	41.069 \| good	48.895 \| good	0.939 \| good	6.719 \| good	0.3 \| good
2026-06-12T22:00:00.000Z	54 \| moderate	11.207 \| good	52.191 \| good	50.366 \| good	0.45 \| good	5.699 \| good	0.273 \| good
2026-06-12T23:00:00.000Z	54 \| moderate	9.797 \| good	41.179 \| good	55.707 \| fine	0.491 \| good	5.94 \| good	0.268 \| good
2026-06-13T00:00:00.000Z	48 \| good	6.929 \| good	33.674 \| good	52.13 \| good	0.511 \| good	5.28 \| good	0.268 \| good
2026-06-13T01:00:00.000Z	46 \| good	6.077 \| good	27.943 \| good	49.797 \| good	0.496 \| good	5.043 \| good	0.268 \| good
2026-06-13T02:00:00.000Z	44 \| good	4.9 \| good	22.159 \| good	47.198 \| good	0.481 \| good	5.309 \| good	0.273 \| good
2026-06-13T02:00:00.000Z	44 \| good	4.9 \| good	22.159 \| good	47.198 \| good	0.481 \| good	5.309 \| good	0.273 \| good
2026-06-13T03:00:00.000Z	49 \| good	8.658 \| good	37.823 \| good	32.679 \| good	0.601 \| good	2.11 \| good	0.115 \| good
2026-06-13T04:00:00.000Z	49 \| good	9.166 \| good	40.738 \| good	26.859 \| good	0.626 \| good	2.75 \| good	0.116 \| good
2026-06-13T05:00:00.000Z	52 \| moderate	9.651 \| good	42.584 \| good	22.902 \| good	0.655 \| good	2.998 \| good	0.117 \| good
2026-06-13T06:00:00.000Z	52 \| moderate	10.362 \| good	45.612 \| good	22.005 \| good	0.672 \| good	3.299 \| good	0.118 \| good
2026-06-13T07:00:00.000Z	52 \| moderate	10.11 \| good	44.39 \| good	22.712 \| good	0.682 \| good	3.485 \| good	0.119 \| good
2026-06-13T08:00:00.000Z	52 \| moderate	10.038 \| good	44.541 \| good	24.366 \| good	0.679 \| good	3.528 \| good	0.119 \| good
2026-06-13T09:00:00.000Z	52 \| moderate	9.604 \| good	42.508 \| good	23.532 \| good	0.673 \| good	3.332 \| good	0.118 \| good
2026-06-13T10:00:00.000Z	52 \| moderate	10.139 \| good	45.005 \| good	21.693 \| good	0.664 \| good	3.233 \| good	0.117 \| good
2026-06-13T11:00:00.000Z	52 \| moderate	9.893 \| good	44.035 \| good	19.502 \| good	0.652 \| good	3.13 \| good	0.116 \| good
2026-06-13T12:00:00.000Z	52 \| moderate	9.808 \| good	43.44 \| good	20.172 \| good	0.632 \| good	3.234 \| good	0.115 \| good
2026-06-13T13:00:00.000Z	49 \| good	8.858 \| good	38.63 \| good	14.78 \| good	0.599 \| good	3.377 \| good	0.116 \| good
2026-06-13T14:00:00.000Z	52 \| moderate	10.06 \| good	44.365 \| good	18.391 \| good	0.592 \| good	2.784 \| good	0.115 \| good
2026-06-13T15:00:00.000Z	56 \| moderate	11.995 \| good	53.643 \| good	22.444 \| good	0.606 \| good	2.131 \| good	0.11 \| good
2026-06-13T16:00:00.000Z	56 \| moderate	11.781 \| good	52.616 \| good	29.191 \| good	0.6 \| good	1.653 \| good	0.107 \| good
2026-06-13T17:00:00.000Z	54 \| moderate	11.324 \| good	50.359 \| good	37.402 \| good	0.599 \| good	1.334 \| good	0.105 \| good
2026-06-13T18:00:00.000Z	49 \| good	8.923 \| good	39.118 \| good	43.858 \| good	0.599 \| good	1.061 \| good	0.103 \| good
2026-06-13T19:00:00.000Z	49 \| good	8.786 \| good	38.205 \| good	47.291 \| good	0.602 \| good	0.86 \| good	0.101 \| good
2026-06-13T20:00:00.000Z	44 \| good	8.406 \| good	36.99 \| good	47.163 \| good	0.598 \| good	0.697 \| good	0.1 \| good
2026-06-13T21:00:00.000Z	44 \| good	7.504 \| good	33.307 \| good	47.796 \| good	0.584 \| good	0.626 \| good	0.098 \| good
2026-06-13T22:00:00.000Z	42 \| good	7.342 \| good	32.331 \| good	45.465 \| good	0.584 \| good	0.616 \| good	0.097 \| good
2026-06-13T23:00:00.000Z	38 \| good	7.16 \| good	31.989 \| good	40.688 \| good	0.574 \| good	0.648 \| good	0.095 \| good
2026-06-14T00:00:00.000Z	38 \| good	7.388 \| good	32.372 \| good	37.153 \| good	0.565 \| good	0.736 \| good	0.094 \| good
2026-06-14T01:00:00.000Z	44 \| good	8.269 \| good	36.665 \| good	37.289 \| good	0.558 \| good	0.888 \| good	0.092 \| good
2026-06-14T02:00:00.000Z	52 \| moderate	10.219 \| good	45.213 \| good	35.213 \| good	0.55 \| good	1.209 \| good	0.092 \| good
2026-06-14T03:00:00.000Z	49 \| good	9.282 \| good	41.465 \| good	30.846 \| good	0.553 \| good	1.681 \| good	0.092 \| good
2026-06-14T04:00:00.000Z	49 \| good	9.085 \| good	40.443 \| good	26.132 \| good	0.564 \| good	2.121 \| good	0.093 \| good
2026-06-14T05:00:00.000Z	49 \| good	9.167 \| good	40.523 \| good	23.402 \| good	0.581 \| good	2.351 \| good	0.093 \| good
2026-06-14T06:00:00.000Z	52 \| moderate	9.821 \| good	43.485 \| good	21.307 \| good	0.594 \| good	2.585 \| good	0.094 \| good
2026-06-14T07:00:00.000Z	49 \| good	9.256 \| good	41.264 \| good	21.36 \| good	0.595 \| good	2.761 \| good	0.095 \| good
2026-06-14T08:00:00.000Z	49 \| good	9.189 \| good	41.12 \| good	19.437 \| good	0.583 \| good	2.726 \| good	0.094 \| good
2026-06-14T09:00:00.000Z	49 \| good	8.993 \| good	39.953 \| good	15.829 \| good	0.568 \| good	2.864 \| good	0.095 \| good
2026-06-14T10:00:00.000Z	49 \| good	8.958 \| good	39.989 \| good	13.64 \| good	0.551 \| good	3.017 \| good	0.095 \| good
2026-06-14T11:00:00.000Z	52 \| moderate	10.223 \| good	45.543 \| good	11.81 \| good	0.53 \| good	3.235 \| good	0.096 \| good
2026-06-14T12:00:00.000Z	52 \| moderate	9.734 \| good	43.401 \| good	16.299 \| good	0.525 \| good	3.519 \| good	0.098 \| good
2026-06-14T13:00:00.000Z	49 \| good	8.537 \| good	37.771 \| good	11.271 \| good	0.527 \| good	3.943 \| good	0.1 \| good
2026-06-14T14:00:00.000Z	49 \| good	8.955 \| good	39.698 \| good	15.921 \| good	0.529 \| good	3.05 \| good	0.098 \| good
2026-06-14T15:00:00.000Z	54 \| moderate	11.354 \| good	50.336 \| good	19.936 \| good	0.528 \| good	1.924 \| good	0.093 \| good
2026-06-14T16:00:00.000Z	54 \| moderate	10.677 \| good	47.341 \| good	26.2 \| good	0.521 \| good	1.473 \| good	0.092 \| good
2026-06-14T17:00:00.000Z	56 \| moderate	12.348 \| fine	55.269 \| fine	33.915 \| good	0.507 \| good	1.142 \| good	0.092 \| good
2026-06-14T18:00:00.000Z	58 \| moderate	12.631 \| fine	57.024 \| fine	40.257 \| good	0.493 \| good	0.896 \| good	0.092 \| good
2026-06-14T19:00:00.000Z	58 \| moderate	12.606 \| fine	57.054 \| fine	46.795 \| good	0.481 \| good	0.727 \| good	0.092 \| good
2026-06-14T20:00:00.000Z	54 \| moderate	11.21 \| good	49.922 \| good	48.292 \| good	0.477 \| good	0.607 \| good	0.092 \| good
2026-06-14T21:00:00.000Z	52 \| moderate	10.356 \| good	45.499 \| good	47.524 \| good	0.473 \| good	0.548 \| good	0.092 \| good
2026-06-14T22:00:00.000Z	49 \| good	8.89 \| good	39.201 \| good	43.312 \| good	0.469 \| good	0.533 \| good	0.092 \| good
2026-06-14T23:00:00.000Z	44 \| good	8.103 \| good	35.458 \| good	39.202 \| good	0.468 \| good	0.561 \| good	0.092 \| good
2026-06-15T00:00:00.000Z	56 \| moderate	12.191 \| fine	18.415 \| good	43.495 \| good	0.474 \| good	0.626 \| good	0.092 \| good
2026-06-15T01:00:00.000Z	44 \| good	8.158 \| good	35.764 \| good	31.445 \| good	0.485 \| good	0.936 \| good	0.092 \| good
2026-06-15T02:00:00.000Z	49 \| good	9.244 \| good	41.2 \| good	27.558 \| good	0.495 \| good	1.331 \| good	0.093 \| good

Cupertino

Empower business decisions with accurate air quality data

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

0.24ppm

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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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 06:00:00 on 2026-06-12.

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

The best air quality in Cupertino, California was recorded at 03:00:00 on 2026-06-12.

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

The real-time air quality index in Cupertino, California is 44, currently categorized as Good.

Which pollutant is found most often in Cupertino, California?

The most common pollutant in Cupertino, California is O3.

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 4.9 μg/m³.

What are the current PM₁₀ levels at Cupertino, California?

The current PM₁₀ levels in Cupertino, California are 22.159 μg/m³.

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

The current carbon monoxide (CO) level in Cupertino, California is 0.273 ppm.

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

The current sulfur dioxide (SO₂) levels in Cupertino, California are 0.481 ppb.

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

The current ozone (O₃) levels at Cupertino, California is 47.198 ppm.

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

The current nitrogen dioxide (NO₂) levels at Cupertino, California is 5.309 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-06-11T03:00:00.000Z	40 \| good	5.755 \| good	25.449 \| good	43.307 \| good	0.565 \| good	3.098 \| good	0.234 \| good
2026-06-11T04:00:00.000Z	49 \| good	9.075 \| good	40.651 \| good	39.281 \| good	0.51 \| good	5.69 \| good	0.21 \| good
2026-06-11T05:00:00.000Z	52 \| moderate	9.669 \| good	40.921 \| good	38.244 \| good	0.415 \| good	9.254 \| good	0.3 \| good
2026-06-11T06:00:00.000Z	44 \| good	7.875 \| good	36.544 \| good	32.288 \| good	0.667 \| good	10.752 \| good	0.337 \| good
2026-06-11T07:00:00.000Z	49 \| good	8.761 \| good	35.859 \| good	30.278 \| good	0.564 \| good	12.15 \| good	0.377 \| good
2026-06-11T08:00:00.000Z	54 \| moderate	10.592 \| good	45.945 \| good	26.667 \| good	0.758 \| good	12.061 \| good	0.402 \| good
2026-06-11T09:00:00.000Z	54 \| moderate	11.292 \| good	50.194 \| good	24.174 \| good	0.563 \| good	14.048 \| good	0.402 \| good
2026-06-11T10:00:00.000Z	54 \| moderate	10.905 \| good	40.707 \| good	23.28 \| good	0.812 \| good	11.726 \| good	0.37 \| good
2026-06-11T11:00:00.000Z	54 \| moderate	11.405 \| good	47.358 \| good	20.991 \| good	0.471 \| good	10.138 \| good	0.347 \| good
2026-06-11T12:00:00.000Z	52 \| moderate	10.235 \| good	42.346 \| good	21.439 \| good	0.45 \| good	9.855 \| good	0.347 \| good
2026-06-11T13:00:00.000Z	56 \| moderate	12.172 \| fine	53.289 \| good	20.866 \| good	0.597 \| good	10.593 \| good	0.39 \| good
2026-06-11T14:00:00.000Z	54 \| moderate	10.833 \| good	44.337 \| good	16.6 \| good	0.431 \| good	12.734 \| good	0.488 \| good
2026-06-11T15:00:00.000Z	49 \| good	8.96 \| good	37.65 \| good	17.578 \| good	0.562 \| good	13.624 \| good	0.571 \| good
2026-06-11T16:00:00.000Z	52 \| moderate	9.713 \| good	39.838 \| good	19.956 \| good	0.502 \| good	15.611 \| good	0.625 \| good
2026-06-11T17:00:00.000Z	60 \| moderate	14.486 \| fine	58.538 \| fine	25.613 \| good	0.722 \| good	16.797 \| good	0.582 \| good
2026-06-11T18:00:00.000Z	56 \| moderate	12.171 \| fine	47.687 \| good	41.747 \| good	0.836 \| good	9.312 \| good	0.296 \| good
2026-06-11T19:00:00.000Z	54 \| moderate	11.208 \| good	49.659 \| good	44.429 \| good	0.657 \| good	6.171 \| good	0.251 \| good
2026-06-11T20:00:00.000Z	49 \| good	9.027 \| good	40.961 \| good	51.333 \| good	0.618 \| good	5.37 \| good	0.201 \| good
2026-06-11T21:00:00.000Z	48 \| good	6.867 \| good	31.779 \| good	52.305 \| good	0.645 \| good	4.857 \| good	0.213 \| good
2026-06-11T22:00:00.000Z	54 \| moderate	6.691 \| good	34.218 \| good	55.649 \| fine	0.587 \| good	5.063 \| good	0.236 \| good
2026-06-11T23:00:00.000Z	61 \| moderate	8.9 \| good	39.285 \| good	58.042 \| fine	0.559 \| good	5.108 \| good	0.236 \| good
2026-06-12T00:00:00.000Z	61 \| moderate	8.738 \| good	43.689 \| good	57.884 \| fine	0.605 \| good	5.648 \| good	0.26 \| good
2026-06-12T01:00:00.000Z	61 \| moderate	8.74 \| good	41.167 \| good	57.618 \| fine	0.764 \| good	5.445 \| good	0.236 \| good
2026-06-12T02:00:00.000Z	50 \| good	9.415 \| good	39.502 \| good	54.384 \| good	0.632 \| good	6.079 \| good	0.268 \| good
2026-06-12T03:00:00.000Z	56 \| moderate	12.273 \| fine	53.534 \| good	46.101 \| good	0.502 \| good	5.29 \| good	0.268 \| good
2026-06-12T04:00:00.000Z	54 \| moderate	11.35 \| good	47.435 \| good	43.705 \| good	0.548 \| good	7.65 \| good	0.268 \| good
2026-06-12T05:00:00.000Z	52 \| moderate	9.826 \| good	46.362 \| good	37.473 \| good	0.747 \| good	10.673 \| good	0.304 \| good
2026-06-12T06:00:00.000Z	56 \| moderate	12.488 \| fine	52.879 \| good	36.206 \| good	0.699 \| good	8.652 \| good	0.314 \| good
2026-06-12T07:00:00.000Z	52 \| moderate	10.014 \| good	40.445 \| good	32.679 \| good	0.693 \| good	5.141 \| good	0.236 \| good
2026-06-12T08:00:00.000Z	44 \| good	7.877 \| good	34.532 \| good	33.795 \| good	0.482 \| good	3.943 \| good	0.236 \| good
2026-06-12T09:00:00.000Z	38 \| good	7.069 \| good	29.322 \| good	34.358 \| good	0.616 \| good	3.691 \| good	0.236 \| good
2026-06-12T10:00:00.000Z	33 \| good	5.954 \| good	23.686 \| good	32.292 \| good	0.462 \| good	3.46 \| good	0.205 \| good
2026-06-12T11:00:00.000Z	28 \| good	5.364 \| good	26.506 \| good	29.827 \| good	0.562 \| good	2.758 \| good	0.205 \| good
2026-06-12T12:00:00.000Z	33 \| good	5.582 \| good	23.943 \| good	29.801 \| good	0.61 \| good	2.729 \| good	0.236 \| good
2026-06-12T13:00:00.000Z	33 \| good	6.12 \| good	21.428 \| good	29.423 \| good	0.638 \| good	3.889 \| good	0.285 \| good
2026-06-12T14:00:00.000Z	33 \| good	6.454 \| good	25.483 \| good	24.996 \| good	0.558 \| good	5.927 \| good	0.268 \| good
2026-06-12T15:00:00.000Z	27 \| good	5.179 \| good	20.208 \| good	23.006 \| good	0.658 \| good	8.549 \| good	0.318 \| good
2026-06-12T16:00:00.000Z	33 \| good	5.808 \| good	25.822 \| good	23.823 \| good	0.714 \| good	9.474 \| good	0.363 \| good
2026-06-12T17:00:00.000Z	38 \| good	7.155 \| good	37.401 \| good	24.058 \| good	0.758 \| good	9.698 \| good	0.332 \| good
2026-06-12T18:00:00.000Z	51 \| moderate	8.95 \| good	55.831 \| fine	27.019 \| good	0.573 \| good	8.92 \| good	0.332 \| good
2026-06-12T19:00:00.000Z	49 \| good	8.875 \| good	42.872 \| good	34.287 \| good	0.572 \| good	8.534 \| good	0.332 \| good
2026-06-12T20:00:00.000Z	44 \| good	8.456 \| good	41.796 \| good	42.557 \| good	1.011 \| good	6.804 \| good	0.291 \| good
2026-06-12T21:00:00.000Z	49 \| good	9.195 \| good	41.069 \| good	48.895 \| good	0.939 \| good	6.719 \| good	0.3 \| good
2026-06-12T22:00:00.000Z	54 \| moderate	11.207 \| good	52.191 \| good	50.366 \| good	0.45 \| good	5.699 \| good	0.273 \| good
2026-06-12T23:00:00.000Z	54 \| moderate	9.797 \| good	41.179 \| good	55.707 \| fine	0.491 \| good	5.94 \| good	0.268 \| good
2026-06-13T00:00:00.000Z	48 \| good	6.929 \| good	33.674 \| good	52.13 \| good	0.511 \| good	5.28 \| good	0.268 \| good
2026-06-13T01:00:00.000Z	46 \| good	6.077 \| good	27.943 \| good	49.797 \| good	0.496 \| good	5.043 \| good	0.268 \| good
2026-06-13T02:00:00.000Z	44 \| good	4.9 \| good	22.159 \| good	47.198 \| good	0.481 \| good	5.309 \| good	0.273 \| good
2026-06-13T02:00:00.000Z	44 \| good	4.9 \| good	22.159 \| good	47.198 \| good	0.481 \| good	5.309 \| good	0.273 \| good
2026-06-13T03:00:00.000Z	49 \| good	8.658 \| good	37.823 \| good	32.679 \| good	0.601 \| good	2.11 \| good	0.115 \| good
2026-06-13T04:00:00.000Z	49 \| good	9.166 \| good	40.738 \| good	26.859 \| good	0.626 \| good	2.75 \| good	0.116 \| good
2026-06-13T05:00:00.000Z	52 \| moderate	9.651 \| good	42.584 \| good	22.902 \| good	0.655 \| good	2.998 \| good	0.117 \| good
2026-06-13T06:00:00.000Z	52 \| moderate	10.362 \| good	45.612 \| good	22.005 \| good	0.672 \| good	3.299 \| good	0.118 \| good
2026-06-13T07:00:00.000Z	52 \| moderate	10.11 \| good	44.39 \| good	22.712 \| good	0.682 \| good	3.485 \| good	0.119 \| good
2026-06-13T08:00:00.000Z	52 \| moderate	10.038 \| good	44.541 \| good	24.366 \| good	0.679 \| good	3.528 \| good	0.119 \| good
2026-06-13T09:00:00.000Z	52 \| moderate	9.604 \| good	42.508 \| good	23.532 \| good	0.673 \| good	3.332 \| good	0.118 \| good
2026-06-13T10:00:00.000Z	52 \| moderate	10.139 \| good	45.005 \| good	21.693 \| good	0.664 \| good	3.233 \| good	0.117 \| good
2026-06-13T11:00:00.000Z	52 \| moderate	9.893 \| good	44.035 \| good	19.502 \| good	0.652 \| good	3.13 \| good	0.116 \| good
2026-06-13T12:00:00.000Z	52 \| moderate	9.808 \| good	43.44 \| good	20.172 \| good	0.632 \| good	3.234 \| good	0.115 \| good
2026-06-13T13:00:00.000Z	49 \| good	8.858 \| good	38.63 \| good	14.78 \| good	0.599 \| good	3.377 \| good	0.116 \| good
2026-06-13T14:00:00.000Z	52 \| moderate	10.06 \| good	44.365 \| good	18.391 \| good	0.592 \| good	2.784 \| good	0.115 \| good
2026-06-13T15:00:00.000Z	56 \| moderate	11.995 \| good	53.643 \| good	22.444 \| good	0.606 \| good	2.131 \| good	0.11 \| good
2026-06-13T16:00:00.000Z	56 \| moderate	11.781 \| good	52.616 \| good	29.191 \| good	0.6 \| good	1.653 \| good	0.107 \| good
2026-06-13T17:00:00.000Z	54 \| moderate	11.324 \| good	50.359 \| good	37.402 \| good	0.599 \| good	1.334 \| good	0.105 \| good
2026-06-13T18:00:00.000Z	49 \| good	8.923 \| good	39.118 \| good	43.858 \| good	0.599 \| good	1.061 \| good	0.103 \| good
2026-06-13T19:00:00.000Z	49 \| good	8.786 \| good	38.205 \| good	47.291 \| good	0.602 \| good	0.86 \| good	0.101 \| good
2026-06-13T20:00:00.000Z	44 \| good	8.406 \| good	36.99 \| good	47.163 \| good	0.598 \| good	0.697 \| good	0.1 \| good
2026-06-13T21:00:00.000Z	44 \| good	7.504 \| good	33.307 \| good	47.796 \| good	0.584 \| good	0.626 \| good	0.098 \| good
2026-06-13T22:00:00.000Z	42 \| good	7.342 \| good	32.331 \| good	45.465 \| good	0.584 \| good	0.616 \| good	0.097 \| good
2026-06-13T23:00:00.000Z	38 \| good	7.16 \| good	31.989 \| good	40.688 \| good	0.574 \| good	0.648 \| good	0.095 \| good
2026-06-14T00:00:00.000Z	38 \| good	7.388 \| good	32.372 \| good	37.153 \| good	0.565 \| good	0.736 \| good	0.094 \| good
2026-06-14T01:00:00.000Z	44 \| good	8.269 \| good	36.665 \| good	37.289 \| good	0.558 \| good	0.888 \| good	0.092 \| good
2026-06-14T02:00:00.000Z	52 \| moderate	10.219 \| good	45.213 \| good	35.213 \| good	0.55 \| good	1.209 \| good	0.092 \| good
2026-06-14T03:00:00.000Z	49 \| good	9.282 \| good	41.465 \| good	30.846 \| good	0.553 \| good	1.681 \| good	0.092 \| good
2026-06-14T04:00:00.000Z	49 \| good	9.085 \| good	40.443 \| good	26.132 \| good	0.564 \| good	2.121 \| good	0.093 \| good
2026-06-14T05:00:00.000Z	49 \| good	9.167 \| good	40.523 \| good	23.402 \| good	0.581 \| good	2.351 \| good	0.093 \| good
2026-06-14T06:00:00.000Z	52 \| moderate	9.821 \| good	43.485 \| good	21.307 \| good	0.594 \| good	2.585 \| good	0.094 \| good
2026-06-14T07:00:00.000Z	49 \| good	9.256 \| good	41.264 \| good	21.36 \| good	0.595 \| good	2.761 \| good	0.095 \| good
2026-06-14T08:00:00.000Z	49 \| good	9.189 \| good	41.12 \| good	19.437 \| good	0.583 \| good	2.726 \| good	0.094 \| good
2026-06-14T09:00:00.000Z	49 \| good	8.993 \| good	39.953 \| good	15.829 \| good	0.568 \| good	2.864 \| good	0.095 \| good
2026-06-14T10:00:00.000Z	49 \| good	8.958 \| good	39.989 \| good	13.64 \| good	0.551 \| good	3.017 \| good	0.095 \| good
2026-06-14T11:00:00.000Z	52 \| moderate	10.223 \| good	45.543 \| good	11.81 \| good	0.53 \| good	3.235 \| good	0.096 \| good
2026-06-14T12:00:00.000Z	52 \| moderate	9.734 \| good	43.401 \| good	16.299 \| good	0.525 \| good	3.519 \| good	0.098 \| good
2026-06-14T13:00:00.000Z	49 \| good	8.537 \| good	37.771 \| good	11.271 \| good	0.527 \| good	3.943 \| good	0.1 \| good
2026-06-14T14:00:00.000Z	49 \| good	8.955 \| good	39.698 \| good	15.921 \| good	0.529 \| good	3.05 \| good	0.098 \| good
2026-06-14T15:00:00.000Z	54 \| moderate	11.354 \| good	50.336 \| good	19.936 \| good	0.528 \| good	1.924 \| good	0.093 \| good
2026-06-14T16:00:00.000Z	54 \| moderate	10.677 \| good	47.341 \| good	26.2 \| good	0.521 \| good	1.473 \| good	0.092 \| good
2026-06-14T17:00:00.000Z	56 \| moderate	12.348 \| fine	55.269 \| fine	33.915 \| good	0.507 \| good	1.142 \| good	0.092 \| good
2026-06-14T18:00:00.000Z	58 \| moderate	12.631 \| fine	57.024 \| fine	40.257 \| good	0.493 \| good	0.896 \| good	0.092 \| good
2026-06-14T19:00:00.000Z	58 \| moderate	12.606 \| fine	57.054 \| fine	46.795 \| good	0.481 \| good	0.727 \| good	0.092 \| good
2026-06-14T20:00:00.000Z	54 \| moderate	11.21 \| good	49.922 \| good	48.292 \| good	0.477 \| good	0.607 \| good	0.092 \| good
2026-06-14T21:00:00.000Z	52 \| moderate	10.356 \| good	45.499 \| good	47.524 \| good	0.473 \| good	0.548 \| good	0.092 \| good
2026-06-14T22:00:00.000Z	49 \| good	8.89 \| good	39.201 \| good	43.312 \| good	0.469 \| good	0.533 \| good	0.092 \| good
2026-06-14T23:00:00.000Z	44 \| good	8.103 \| good	35.458 \| good	39.202 \| good	0.468 \| good	0.561 \| good	0.092 \| good
2026-06-15T00:00:00.000Z	56 \| moderate	12.191 \| fine	18.415 \| good	43.495 \| good	0.474 \| good	0.626 \| good	0.092 \| good
2026-06-15T01:00:00.000Z	44 \| good	8.158 \| good	35.764 \| good	31.445 \| good	0.485 \| good	0.936 \| good	0.092 \| good
2026-06-15T02:00:00.000Z	49 \| good	9.244 \| good	41.2 \| good	27.558 \| good	0.495 \| good	1.331 \| good	0.093 \| 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?