What are the current PM10 levels at Cupertino, California?

The current PM10 levels in Cupertino, California are 26.158 μg/m3.

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

The current sulfur dioxide (SO2) levels in Cupertino, California are 0.529 ppb.

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

The current ozone (O3) levels at Cupertino, California is 41.591 ppm.

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

The current nitrogen dioxide (NO2) levels at Cupertino, California is 4.388 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 6.209 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)

6.21 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

26.16 μg/m³

155

255

425

605+

Ozone (O₃)

41.59 ppb

201

201+

Sulfur Dioxide (SO₂)

0.53 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.39 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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
2026-04-23T17:00:00.000Z	23 \| good	3.73 \| good	17.598 \| good	25.409 \| good	0.422 \| good	12.683 \| good	0.491 \| good
2026-04-23T18:00:00.000Z	24 \| good	3.754 \| good	13.47 \| good	25.543 \| good	0.469 \| good	10.688 \| good	0.351 \| good
2026-04-23T19:00:00.000Z	29 \| good	3.105 \| good	13.892 \| good	30.897 \| good	0.846 \| good	8.163 \| good	0.299 \| good
2026-04-23T20:00:00.000Z	30 \| good	5.28 \| good	18.088 \| good	32.348 \| good	0.547 \| good	5.589 \| good	0.248 \| good
2026-04-23T21:00:00.000Z	38 \| good	7.389 \| good	27.758 \| good	33.715 \| good	0.519 \| good	6.037 \| good	0.248 \| good
2026-04-23T22:00:00.000Z	32 \| good	4.881 \| good	16.418 \| good	35.381 \| good	0.531 \| good	4.353 \| good	0.248 \| good
2026-04-23T23:00:00.000Z	35 \| good	4.343 \| good	17.542 \| good	37.685 \| good	0.401 \| good	5.328 \| good	0.287 \| good
2026-04-24T00:00:00.000Z	34 \| good	1.558 \| good	6.324 \| good	37.378 \| good	0.443 \| good	3.649 \| good	0.274 \| good
2026-04-24T01:00:00.000Z	37 \| good	4.445 \| good	14.914 \| good	40.274 \| good	0.456 \| good	4.267 \| good	0.249 \| good
2026-04-24T02:00:00.000Z	33 \| good	2.481 \| good	8.976 \| good	35.717 \| good	0.497 \| good	4.259 \| good	0.237 \| good
2026-04-24T03:00:00.000Z	31 \| good	4.046 \| good	18.019 \| good	34.475 \| good	0.893 \| good	7.571 \| good	0.163 \| good
2026-04-24T04:00:00.000Z	34 \| good	1.989 \| good	7.558 \| good	36.773 \| good	0.44 \| good	5.713 \| good	0.262 \| good
2026-04-24T05:00:00.000Z	33 \| good	2.881 \| good	9.68 \| good	35.703 \| good	0.495 \| good	5.546 \| good	0.249 \| good
2026-04-24T06:00:00.000Z	30 \| good	3.043 \| good	17.278 \| good	32.419 \| good	0.523 \| good	6.608 \| good	0.249 \| good
2026-04-24T07:00:00.000Z	30 \| good	3.889 \| good	15.003 \| good	31.639 \| good	0.59 \| good	5.463 \| good	0.274 \| good
2026-04-24T08:00:00.000Z	27 \| good	4.871 \| good	21.309 \| good	25.452 \| good	0.402 \| good	4.911 \| good	0.262 \| good
2026-04-24T09:00:00.000Z	33 \| good	6.204 \| good	22.874 \| good	24.751 \| good	0.356 \| good	4.337 \| good	0.236 \| good
2026-04-24T10:00:00.000Z	33 \| good	5.605 \| good	27.911 \| good	19.915 \| good	0.281 \| good	3.705 \| good	0.225 \| good
2026-04-24T11:00:00.000Z	38 \| good	6.99 \| good	33.695 \| good	21.412 \| good	0.347 \| good	3.971 \| good	0.262 \| good
2026-04-24T12:00:00.000Z	38 \| good	7.006 \| good	24.407 \| good	16.956 \| good	0.301 \| good	5.26 \| good	0.288 \| good
2026-04-24T13:00:00.000Z	33 \| good	6.251 \| good	24.967 \| good	19.356 \| good	0.333 \| good	4.486 \| good	0.285 \| good
2026-04-24T14:00:00.000Z	27 \| good	4.818 \| good	24.951 \| good	16.386 \| good	0.462 \| good	7.27 \| good	0.287 \| good
2026-04-24T15:00:00.000Z	44 \| good	7.951 \| good	23.404 \| good	16.833 \| good	0.401 \| good	8.405 \| good	0.313 \| good
2026-04-24T16:00:00.000Z	44 \| good	7.501 \| good	34.422 \| good	25.244 \| good	0.395 \| good	9.083 \| good	0.351 \| good
2026-04-24T17:00:00.000Z	44 \| good	8.137 \| good	37.142 \| good	29.408 \| good	0.341 \| good	8.302 \| good	0.287 \| good
2026-04-24T18:00:00.000Z	44 \| good	8.372 \| good	35.611 \| good	37.51 \| good	0.302 \| good	5.364 \| good	0.274 \| good
2026-04-24T19:00:00.000Z	44 \| good	7.649 \| good	34.436 \| good	38.381 \| good	0.332 \| good	4.261 \| good	0.248 \| good
2026-04-24T20:00:00.000Z	49 \| good	9.321 \| good	37.423 \| good	37.972 \| good	0.302 \| good	4.419 \| good	0.275 \| good
2026-04-24T21:00:00.000Z	52 \| moderate	10.492 \| good	50.005 \| good	41.523 \| good	0.416 \| good	4.638 \| good	0.274 \| good
2026-04-24T22:00:00.000Z	49 \| good	8.501 \| good	39.916 \| good	39.684 \| good	0.401 \| good	4.61 \| good	0.274 \| good
2026-04-24T23:00:00.000Z	44 \| good	8.226 \| good	33.772 \| good	41.097 \| good	0.286 \| good	4.754 \| good	0.274 \| good
2026-04-25T00:00:00.000Z	39 \| good	7.188 \| good	27.646 \| good	41.712 \| good	0.42 \| good	4.305 \| good	0.275 \| good
2026-04-25T01:00:00.000Z	44 \| good	8.156 \| good	30.511 \| good	39.796 \| good	0.4 \| good	4.14 \| good	0.262 \| good
2026-04-25T02:00:00.000Z	49 \| good	8.689 \| good	38.784 \| good	39.499 \| good	0.32 \| good	3.563 \| good	0.249 \| good
2026-04-25T03:00:00.000Z	44 \| good	7.948 \| good	37.641 \| good	35.857 \| good	0.438 \| good	3.019 \| good	0.274 \| good
2026-04-25T04:00:00.000Z	38 \| good	6.752 \| good	28.251 \| good	37.196 \| good	0.459 \| good	3.639 \| good	0.288 \| good
2026-04-25T05:00:00.000Z	38 \| good	7.26 \| good	34.553 \| good	38.548 \| good	0.401 \| good	4.135 \| good	0.262 \| good
2026-04-25T06:00:00.000Z	44 \| good	8.196 \| good	33.664 \| good	34.93 \| good	0.382 \| good	3.902 \| good	0.262 \| good
2026-04-25T07:00:00.000Z	49 \| good	8.851 \| good	37.366 \| good	32.746 \| good	0.246 \| good	3.114 \| good	0.262 \| good
2026-04-25T08:00:00.000Z	44 \| good	8.085 \| good	27.252 \| good	30.56 \| good	0.281 \| good	2.412 \| good	0.236 \| good
2026-04-25T09:00:00.000Z	38 \| good	6.769 \| good	30.761 \| good	26.953 \| good	0.281 \| good	2.679 \| good	0.236 \| good
2026-04-25T10:00:00.000Z	32 \| good	5.224 \| good	19.904 \| good	35.093 \| good	0.472 \| good	1.556 \| good	0.153 \| good
2026-04-25T11:00:00.000Z	33 \| good	5.431 \| good	18.405 \| good	36.129 \| good	0.543 \| good	1.914 \| good	0.14 \| good
2026-04-25T12:00:00.000Z	38 \| good	6.762 \| good	17.817 \| good	23.582 \| good	0.235 \| good	1.293 \| good	0.241 \| good
2026-04-25T13:00:00.000Z	33 \| good	6.046 \| good	25.47 \| good	24.88 \| good	0.403 \| good	1.457 \| good	0.211 \| good
2026-04-25T14:00:00.000Z	37 \| good	5.605 \| good	28.416 \| good	39.524 \| good	0.513 \| good	3.377 \| good	0.225 \| good
2026-04-25T15:00:00.000Z	33 \| good	5.74 \| good	19.722 \| good	30.452 \| good	0.526 \| good	4.519 \| good	0.251 \| good
2026-04-25T16:00:00.000Z	44 \| good	7.76 \| good	30.287 \| good	30.179 \| good	0.509 \| good	6.208 \| good	0.288 \| good
2026-04-25T16:00:00.000Z	39 \| good	6.209 \| good	26.158 \| good	41.591 \| good	0.529 \| good	4.388 \| good	0.249 \| good
2026-04-25T17:00:00.000Z	34 \| good	5.526 \| good	23.639 \| good	37.079 \| good	0.588 \| good	2.85 \| good	0.126 \| good
2026-04-25T18:00:00.000Z	35 \| good	5.314 \| good	23.075 \| good	37.829 \| good	0.446 \| good	2.136 \| good	0.124 \| good
2026-04-25T19:00:00.000Z	38 \| good	6.705 \| good	30.073 \| good	38.615 \| good	0.421 \| good	1.958 \| good	0.122 \| good
2026-04-25T20:00:00.000Z	34 \| good	5.654 \| good	24.397 \| good	36.756 \| good	0.396 \| good	1.781 \| good	0.121 \| good
2026-04-25T21:00:00.000Z	34 \| good	5.132 \| good	22.148 \| good	37.087 \| good	0.371 \| good	1.603 \| good	0.12 \| good
2026-04-25T22:00:00.000Z	33 \| good	6.257 \| good	27.948 \| good	35.964 \| good	0.353 \| good	1.636 \| good	0.12 \| good
2026-04-25T23:00:00.000Z	36 \| good	5.579 \| good	24.447 \| good	38.642 \| good	0.335 \| good	1.669 \| good	0.12 \| good
2026-04-26T00:00:00.000Z	38 \| good	4.037 \| good	17.931 \| good	41.35 \| good	0.317 \| good	1.701 \| good	0.119 \| good
2026-04-26T01:00:00.000Z	39 \| good	5.673 \| good	24.479 \| good	41.794 \| good	0.322 \| good	2.191 \| good	0.122 \| good
2026-04-26T02:00:00.000Z	44 \| good	8.107 \| good	35.503 \| good	39.814 \| good	0.327 \| good	2.681 \| good	0.125 \| good
2026-04-26T03:00:00.000Z	34 \| good	5.879 \| good	25.339 \| good	36.907 \| good	0.332 \| good	3.171 \| good	0.127 \| good
2026-04-26T04:00:00.000Z	30 \| good	4.748 \| good	20.682 \| good	31.703 \| good	0.416 \| good	4.018 \| good	0.132 \| good
2026-04-26T05:00:00.000Z	28 \| good	4.827 \| good	20.884 \| good	30.069 \| good	0.5 \| good	4.865 \| good	0.137 \| good
2026-04-26T06:00:00.000Z	25 \| good	4.106 \| good	17.652 \| good	27.384 \| good	0.585 \| good	5.712 \| good	0.141 \| good
2026-04-26T07:00:00.000Z	24 \| good	3.234 \| good	13.739 \| good	25.601 \| good	0.604 \| good	6.235 \| good	0.146 \| good
2026-04-26T08:00:00.000Z	23 \| good	3.84 \| good	16.883 \| good	25.138 \| good	0.624 \| good	6.759 \| good	0.15 \| good
2026-04-26T09:00:00.000Z	24 \| good	2.968 \| good	12.125 \| good	25.519 \| good	0.643 \| good	7.283 \| good	0.155 \| good
2026-04-26T10:00:00.000Z	24 \| good	2.431 \| good	9.846 \| good	26.443 \| good	0.614 \| good	6.347 \| good	0.149 \| good
2026-04-26T11:00:00.000Z	26 \| good	2.858 \| good	11.846 \| good	28.263 \| good	0.585 \| good	5.411 \| good	0.144 \| good
2026-04-26T12:00:00.000Z	26 \| good	2.125 \| good	8.784 \| good	27.736 \| good	0.556 \| good	4.475 \| good	0.139 \| good
2026-04-26T13:00:00.000Z	25 \| good	2.853 \| good	11.753 \| good	26.74 \| good	0.549 \| good	4.193 \| good	0.138 \| good
2026-04-26T14:00:00.000Z	26 \| good	3.346 \| good	14.511 \| good	27.835 \| good	0.543 \| good	3.911 \| good	0.138 \| good
2026-04-26T15:00:00.000Z	32 \| good	3.98 \| good	17.584 \| good	34.895 \| good	0.536 \| good	3.629 \| good	0.138 \| good
2026-04-26T16:00:00.000Z	38 \| good	5.387 \| good	23.115 \| good	40.524 \| good	0.52 \| good	2.999 \| good	0.137 \| good
2026-04-26T17:00:00.000Z	39 \| good	6.981 \| good	30.994 \| good	41.924 \| good	0.504 \| good	2.37 \| good	0.135 \| good
2026-04-26T18:00:00.000Z	40 \| good	6.069 \| good	26.964 \| good	43.309 \| good	0.488 \| good	1.74 \| good	0.134 \| good
2026-04-26T19:00:00.000Z	44 \| good	7.578 \| good	33.185 \| good	43.819 \| good	0.472 \| good	1.472 \| good	0.132 \| good
2026-04-26T20:00:00.000Z	43 \| good	5.766 \| good	25.172 \| good	46.084 \| good	0.457 \| good	1.203 \| good	0.13 \| good
2026-04-26T21:00:00.000Z	43 \| good	5.795 \| good	25.481 \| good	46.383 \| good	0.442 \| good	0.934 \| good	0.127 \| good
2026-04-26T22:00:00.000Z	44 \| good	5.689 \| good	24.371 \| good	46.976 \| good	0.433 \| good	0.997 \| good	0.126 \| good
2026-04-26T23:00:00.000Z	44 \| good	6.081 \| good	27.058 \| good	47.09 \| good	0.424 \| good	1.06 \| good	0.126 \| good
2026-04-27T00:00:00.000Z	45 \| good	3.345 \| good	14.583 \| good	49.057 \| good	0.415 \| good	1.123 \| good	0.125 \| good
2026-04-27T01:00:00.000Z	45 \| good	4.447 \| good	19.179 \| good	48.529 \| good	0.433 \| good	1.814 \| good	0.128 \| good
2026-04-27T02:00:00.000Z	43 \| good	5.053 \| good	22.008 \| good	46.182 \| good	0.45 \| good	2.504 \| good	0.13 \| good
2026-04-27T03:00:00.000Z	38 \| good	6.522 \| good	28.978 \| good	41.02 \| good	0.468 \| good	3.194 \| good	0.133 \| good
2026-04-27T04:00:00.000Z	33 \| good	5.898 \| good	26.404 \| good	36.324 \| good	0.573 \| good	5.177 \| good	0.142 \| good
2026-04-27T05:00:00.000Z	33 \| good	5.872 \| good	26.294 \| good	35.619 \| good	0.677 \| good	7.161 \| good	0.15 \| good
2026-04-27T06:00:00.000Z	33 \| good	6.033 \| good	26.315 \| good	32.311 \| good	0.782 \| good	9.144 \| good	0.159 \| good
2026-04-27T07:00:00.000Z	27 \| good	5.386 \| good	23.581 \| good	29.064 \| good	0.805 \| good	9.667 \| good	0.163 \| good
2026-04-27T08:00:00.000Z	27 \| good	5.199 \| good	22.702 \| good	25.333 \| good	0.827 \| good	10.189 \| good	0.166 \| good
2026-04-27T09:00:00.000Z	22 \| good	4.476 \| good	19.658 \| good	20.406 \| good	0.85 \| good	10.712 \| good	0.17 \| good
2026-04-27T10:00:00.000Z	22 \| good	3.805 \| good	16.394 \| good	18.078 \| good	0.848 \| good	10.292 \| good	0.168 \| good
2026-04-27T11:00:00.000Z	22 \| good	3.605 \| good	15.511 \| good	18.261 \| good	0.846 \| good	9.872 \| good	0.165 \| good
2026-04-27T12:00:00.000Z	17 \| good	3.002 \| good	13.314 \| good	18.135 \| good	0.844 \| good	9.452 \| good	0.163 \| good
2026-04-27T13:00:00.000Z	22 \| good	3.508 \| good	15.409 \| good	18.565 \| good	0.86 \| good	8.993 \| good	0.166 \| good
2026-04-27T14:00:00.000Z	22 \| good	4.309 \| good	18.6 \| good	21.863 \| good	0.876 \| good	8.534 \| good	0.169 \| good
2026-04-27T15:00:00.000Z	31 \| good	4.867 \| good	20.873 \| good	33.357 \| good	0.893 \| good	8.075 \| good	0.172 \| good
2026-04-27T16:00:00.000Z	37 \| good	5.918 \| good	25.472 \| good	40.365 \| good	0.783 \| good	6.005 \| good	0.155 \| good

Cupertino

Empower business decisions with accurate air quality data

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

0.27ppm

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 2026-04-24.

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 2026-04-25.

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

The real-time air quality index in Cupertino, California is 39, 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 6.209 μg/m³.

What are the current PM₁₀ levels at Cupertino, California?

The current PM₁₀ levels in Cupertino, California are 26.158 μg/m³.

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

The current carbon monoxide (CO) level in Cupertino, California is 0.249 ppm.

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

The current sulfur dioxide (SO₂) levels in Cupertino, California are 0.529 ppb.

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

The current ozone (O₃) levels at Cupertino, California is 41.591 ppm.

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

The current nitrogen dioxide (NO₂) levels at Cupertino, California is 4.388 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-23T17:00:00.000Z	23 \| good	3.73 \| good	17.598 \| good	25.409 \| good	0.422 \| good	12.683 \| good	0.491 \| good
2026-04-23T18:00:00.000Z	24 \| good	3.754 \| good	13.47 \| good	25.543 \| good	0.469 \| good	10.688 \| good	0.351 \| good
2026-04-23T19:00:00.000Z	29 \| good	3.105 \| good	13.892 \| good	30.897 \| good	0.846 \| good	8.163 \| good	0.299 \| good
2026-04-23T20:00:00.000Z	30 \| good	5.28 \| good	18.088 \| good	32.348 \| good	0.547 \| good	5.589 \| good	0.248 \| good
2026-04-23T21:00:00.000Z	38 \| good	7.389 \| good	27.758 \| good	33.715 \| good	0.519 \| good	6.037 \| good	0.248 \| good
2026-04-23T22:00:00.000Z	32 \| good	4.881 \| good	16.418 \| good	35.381 \| good	0.531 \| good	4.353 \| good	0.248 \| good
2026-04-23T23:00:00.000Z	35 \| good	4.343 \| good	17.542 \| good	37.685 \| good	0.401 \| good	5.328 \| good	0.287 \| good
2026-04-24T00:00:00.000Z	34 \| good	1.558 \| good	6.324 \| good	37.378 \| good	0.443 \| good	3.649 \| good	0.274 \| good
2026-04-24T01:00:00.000Z	37 \| good	4.445 \| good	14.914 \| good	40.274 \| good	0.456 \| good	4.267 \| good	0.249 \| good
2026-04-24T02:00:00.000Z	33 \| good	2.481 \| good	8.976 \| good	35.717 \| good	0.497 \| good	4.259 \| good	0.237 \| good
2026-04-24T03:00:00.000Z	31 \| good	4.046 \| good	18.019 \| good	34.475 \| good	0.893 \| good	7.571 \| good	0.163 \| good
2026-04-24T04:00:00.000Z	34 \| good	1.989 \| good	7.558 \| good	36.773 \| good	0.44 \| good	5.713 \| good	0.262 \| good
2026-04-24T05:00:00.000Z	33 \| good	2.881 \| good	9.68 \| good	35.703 \| good	0.495 \| good	5.546 \| good	0.249 \| good
2026-04-24T06:00:00.000Z	30 \| good	3.043 \| good	17.278 \| good	32.419 \| good	0.523 \| good	6.608 \| good	0.249 \| good
2026-04-24T07:00:00.000Z	30 \| good	3.889 \| good	15.003 \| good	31.639 \| good	0.59 \| good	5.463 \| good	0.274 \| good
2026-04-24T08:00:00.000Z	27 \| good	4.871 \| good	21.309 \| good	25.452 \| good	0.402 \| good	4.911 \| good	0.262 \| good
2026-04-24T09:00:00.000Z	33 \| good	6.204 \| good	22.874 \| good	24.751 \| good	0.356 \| good	4.337 \| good	0.236 \| good
2026-04-24T10:00:00.000Z	33 \| good	5.605 \| good	27.911 \| good	19.915 \| good	0.281 \| good	3.705 \| good	0.225 \| good
2026-04-24T11:00:00.000Z	38 \| good	6.99 \| good	33.695 \| good	21.412 \| good	0.347 \| good	3.971 \| good	0.262 \| good
2026-04-24T12:00:00.000Z	38 \| good	7.006 \| good	24.407 \| good	16.956 \| good	0.301 \| good	5.26 \| good	0.288 \| good
2026-04-24T13:00:00.000Z	33 \| good	6.251 \| good	24.967 \| good	19.356 \| good	0.333 \| good	4.486 \| good	0.285 \| good
2026-04-24T14:00:00.000Z	27 \| good	4.818 \| good	24.951 \| good	16.386 \| good	0.462 \| good	7.27 \| good	0.287 \| good
2026-04-24T15:00:00.000Z	44 \| good	7.951 \| good	23.404 \| good	16.833 \| good	0.401 \| good	8.405 \| good	0.313 \| good
2026-04-24T16:00:00.000Z	44 \| good	7.501 \| good	34.422 \| good	25.244 \| good	0.395 \| good	9.083 \| good	0.351 \| good
2026-04-24T17:00:00.000Z	44 \| good	8.137 \| good	37.142 \| good	29.408 \| good	0.341 \| good	8.302 \| good	0.287 \| good
2026-04-24T18:00:00.000Z	44 \| good	8.372 \| good	35.611 \| good	37.51 \| good	0.302 \| good	5.364 \| good	0.274 \| good
2026-04-24T19:00:00.000Z	44 \| good	7.649 \| good	34.436 \| good	38.381 \| good	0.332 \| good	4.261 \| good	0.248 \| good
2026-04-24T20:00:00.000Z	49 \| good	9.321 \| good	37.423 \| good	37.972 \| good	0.302 \| good	4.419 \| good	0.275 \| good
2026-04-24T21:00:00.000Z	52 \| moderate	10.492 \| good	50.005 \| good	41.523 \| good	0.416 \| good	4.638 \| good	0.274 \| good
2026-04-24T22:00:00.000Z	49 \| good	8.501 \| good	39.916 \| good	39.684 \| good	0.401 \| good	4.61 \| good	0.274 \| good
2026-04-24T23:00:00.000Z	44 \| good	8.226 \| good	33.772 \| good	41.097 \| good	0.286 \| good	4.754 \| good	0.274 \| good
2026-04-25T00:00:00.000Z	39 \| good	7.188 \| good	27.646 \| good	41.712 \| good	0.42 \| good	4.305 \| good	0.275 \| good
2026-04-25T01:00:00.000Z	44 \| good	8.156 \| good	30.511 \| good	39.796 \| good	0.4 \| good	4.14 \| good	0.262 \| good
2026-04-25T02:00:00.000Z	49 \| good	8.689 \| good	38.784 \| good	39.499 \| good	0.32 \| good	3.563 \| good	0.249 \| good
2026-04-25T03:00:00.000Z	44 \| good	7.948 \| good	37.641 \| good	35.857 \| good	0.438 \| good	3.019 \| good	0.274 \| good
2026-04-25T04:00:00.000Z	38 \| good	6.752 \| good	28.251 \| good	37.196 \| good	0.459 \| good	3.639 \| good	0.288 \| good
2026-04-25T05:00:00.000Z	38 \| good	7.26 \| good	34.553 \| good	38.548 \| good	0.401 \| good	4.135 \| good	0.262 \| good
2026-04-25T06:00:00.000Z	44 \| good	8.196 \| good	33.664 \| good	34.93 \| good	0.382 \| good	3.902 \| good	0.262 \| good
2026-04-25T07:00:00.000Z	49 \| good	8.851 \| good	37.366 \| good	32.746 \| good	0.246 \| good	3.114 \| good	0.262 \| good
2026-04-25T08:00:00.000Z	44 \| good	8.085 \| good	27.252 \| good	30.56 \| good	0.281 \| good	2.412 \| good	0.236 \| good
2026-04-25T09:00:00.000Z	38 \| good	6.769 \| good	30.761 \| good	26.953 \| good	0.281 \| good	2.679 \| good	0.236 \| good
2026-04-25T10:00:00.000Z	32 \| good	5.224 \| good	19.904 \| good	35.093 \| good	0.472 \| good	1.556 \| good	0.153 \| good
2026-04-25T11:00:00.000Z	33 \| good	5.431 \| good	18.405 \| good	36.129 \| good	0.543 \| good	1.914 \| good	0.14 \| good
2026-04-25T12:00:00.000Z	38 \| good	6.762 \| good	17.817 \| good	23.582 \| good	0.235 \| good	1.293 \| good	0.241 \| good
2026-04-25T13:00:00.000Z	33 \| good	6.046 \| good	25.47 \| good	24.88 \| good	0.403 \| good	1.457 \| good	0.211 \| good
2026-04-25T14:00:00.000Z	37 \| good	5.605 \| good	28.416 \| good	39.524 \| good	0.513 \| good	3.377 \| good	0.225 \| good
2026-04-25T15:00:00.000Z	33 \| good	5.74 \| good	19.722 \| good	30.452 \| good	0.526 \| good	4.519 \| good	0.251 \| good
2026-04-25T16:00:00.000Z	44 \| good	7.76 \| good	30.287 \| good	30.179 \| good	0.509 \| good	6.208 \| good	0.288 \| good
2026-04-25T16:00:00.000Z	39 \| good	6.209 \| good	26.158 \| good	41.591 \| good	0.529 \| good	4.388 \| good	0.249 \| good
2026-04-25T17:00:00.000Z	34 \| good	5.526 \| good	23.639 \| good	37.079 \| good	0.588 \| good	2.85 \| good	0.126 \| good
2026-04-25T18:00:00.000Z	35 \| good	5.314 \| good	23.075 \| good	37.829 \| good	0.446 \| good	2.136 \| good	0.124 \| good
2026-04-25T19:00:00.000Z	38 \| good	6.705 \| good	30.073 \| good	38.615 \| good	0.421 \| good	1.958 \| good	0.122 \| good
2026-04-25T20:00:00.000Z	34 \| good	5.654 \| good	24.397 \| good	36.756 \| good	0.396 \| good	1.781 \| good	0.121 \| good
2026-04-25T21:00:00.000Z	34 \| good	5.132 \| good	22.148 \| good	37.087 \| good	0.371 \| good	1.603 \| good	0.12 \| good
2026-04-25T22:00:00.000Z	33 \| good	6.257 \| good	27.948 \| good	35.964 \| good	0.353 \| good	1.636 \| good	0.12 \| good
2026-04-25T23:00:00.000Z	36 \| good	5.579 \| good	24.447 \| good	38.642 \| good	0.335 \| good	1.669 \| good	0.12 \| good
2026-04-26T00:00:00.000Z	38 \| good	4.037 \| good	17.931 \| good	41.35 \| good	0.317 \| good	1.701 \| good	0.119 \| good
2026-04-26T01:00:00.000Z	39 \| good	5.673 \| good	24.479 \| good	41.794 \| good	0.322 \| good	2.191 \| good	0.122 \| good
2026-04-26T02:00:00.000Z	44 \| good	8.107 \| good	35.503 \| good	39.814 \| good	0.327 \| good	2.681 \| good	0.125 \| good
2026-04-26T03:00:00.000Z	34 \| good	5.879 \| good	25.339 \| good	36.907 \| good	0.332 \| good	3.171 \| good	0.127 \| good
2026-04-26T04:00:00.000Z	30 \| good	4.748 \| good	20.682 \| good	31.703 \| good	0.416 \| good	4.018 \| good	0.132 \| good
2026-04-26T05:00:00.000Z	28 \| good	4.827 \| good	20.884 \| good	30.069 \| good	0.5 \| good	4.865 \| good	0.137 \| good
2026-04-26T06:00:00.000Z	25 \| good	4.106 \| good	17.652 \| good	27.384 \| good	0.585 \| good	5.712 \| good	0.141 \| good
2026-04-26T07:00:00.000Z	24 \| good	3.234 \| good	13.739 \| good	25.601 \| good	0.604 \| good	6.235 \| good	0.146 \| good
2026-04-26T08:00:00.000Z	23 \| good	3.84 \| good	16.883 \| good	25.138 \| good	0.624 \| good	6.759 \| good	0.15 \| good
2026-04-26T09:00:00.000Z	24 \| good	2.968 \| good	12.125 \| good	25.519 \| good	0.643 \| good	7.283 \| good	0.155 \| good
2026-04-26T10:00:00.000Z	24 \| good	2.431 \| good	9.846 \| good	26.443 \| good	0.614 \| good	6.347 \| good	0.149 \| good
2026-04-26T11:00:00.000Z	26 \| good	2.858 \| good	11.846 \| good	28.263 \| good	0.585 \| good	5.411 \| good	0.144 \| good
2026-04-26T12:00:00.000Z	26 \| good	2.125 \| good	8.784 \| good	27.736 \| good	0.556 \| good	4.475 \| good	0.139 \| good
2026-04-26T13:00:00.000Z	25 \| good	2.853 \| good	11.753 \| good	26.74 \| good	0.549 \| good	4.193 \| good	0.138 \| good
2026-04-26T14:00:00.000Z	26 \| good	3.346 \| good	14.511 \| good	27.835 \| good	0.543 \| good	3.911 \| good	0.138 \| good
2026-04-26T15:00:00.000Z	32 \| good	3.98 \| good	17.584 \| good	34.895 \| good	0.536 \| good	3.629 \| good	0.138 \| good
2026-04-26T16:00:00.000Z	38 \| good	5.387 \| good	23.115 \| good	40.524 \| good	0.52 \| good	2.999 \| good	0.137 \| good
2026-04-26T17:00:00.000Z	39 \| good	6.981 \| good	30.994 \| good	41.924 \| good	0.504 \| good	2.37 \| good	0.135 \| good
2026-04-26T18:00:00.000Z	40 \| good	6.069 \| good	26.964 \| good	43.309 \| good	0.488 \| good	1.74 \| good	0.134 \| good
2026-04-26T19:00:00.000Z	44 \| good	7.578 \| good	33.185 \| good	43.819 \| good	0.472 \| good	1.472 \| good	0.132 \| good
2026-04-26T20:00:00.000Z	43 \| good	5.766 \| good	25.172 \| good	46.084 \| good	0.457 \| good	1.203 \| good	0.13 \| good
2026-04-26T21:00:00.000Z	43 \| good	5.795 \| good	25.481 \| good	46.383 \| good	0.442 \| good	0.934 \| good	0.127 \| good
2026-04-26T22:00:00.000Z	44 \| good	5.689 \| good	24.371 \| good	46.976 \| good	0.433 \| good	0.997 \| good	0.126 \| good
2026-04-26T23:00:00.000Z	44 \| good	6.081 \| good	27.058 \| good	47.09 \| good	0.424 \| good	1.06 \| good	0.126 \| good
2026-04-27T00:00:00.000Z	45 \| good	3.345 \| good	14.583 \| good	49.057 \| good	0.415 \| good	1.123 \| good	0.125 \| good
2026-04-27T01:00:00.000Z	45 \| good	4.447 \| good	19.179 \| good	48.529 \| good	0.433 \| good	1.814 \| good	0.128 \| good
2026-04-27T02:00:00.000Z	43 \| good	5.053 \| good	22.008 \| good	46.182 \| good	0.45 \| good	2.504 \| good	0.13 \| good
2026-04-27T03:00:00.000Z	38 \| good	6.522 \| good	28.978 \| good	41.02 \| good	0.468 \| good	3.194 \| good	0.133 \| good
2026-04-27T04:00:00.000Z	33 \| good	5.898 \| good	26.404 \| good	36.324 \| good	0.573 \| good	5.177 \| good	0.142 \| good
2026-04-27T05:00:00.000Z	33 \| good	5.872 \| good	26.294 \| good	35.619 \| good	0.677 \| good	7.161 \| good	0.15 \| good
2026-04-27T06:00:00.000Z	33 \| good	6.033 \| good	26.315 \| good	32.311 \| good	0.782 \| good	9.144 \| good	0.159 \| good
2026-04-27T07:00:00.000Z	27 \| good	5.386 \| good	23.581 \| good	29.064 \| good	0.805 \| good	9.667 \| good	0.163 \| good
2026-04-27T08:00:00.000Z	27 \| good	5.199 \| good	22.702 \| good	25.333 \| good	0.827 \| good	10.189 \| good	0.166 \| good
2026-04-27T09:00:00.000Z	22 \| good	4.476 \| good	19.658 \| good	20.406 \| good	0.85 \| good	10.712 \| good	0.17 \| good
2026-04-27T10:00:00.000Z	22 \| good	3.805 \| good	16.394 \| good	18.078 \| good	0.848 \| good	10.292 \| good	0.168 \| good
2026-04-27T11:00:00.000Z	22 \| good	3.605 \| good	15.511 \| good	18.261 \| good	0.846 \| good	9.872 \| good	0.165 \| good
2026-04-27T12:00:00.000Z	17 \| good	3.002 \| good	13.314 \| good	18.135 \| good	0.844 \| good	9.452 \| good	0.163 \| good
2026-04-27T13:00:00.000Z	22 \| good	3.508 \| good	15.409 \| good	18.565 \| good	0.86 \| good	8.993 \| good	0.166 \| good
2026-04-27T14:00:00.000Z	22 \| good	4.309 \| good	18.6 \| good	21.863 \| good	0.876 \| good	8.534 \| good	0.169 \| good
2026-04-27T15:00:00.000Z	31 \| good	4.867 \| good	20.873 \| good	33.357 \| good	0.893 \| good	8.075 \| good	0.172 \| good
2026-04-27T16:00:00.000Z	37 \| good	5.918 \| good	25.472 \| good	40.365 \| good	0.783 \| good	6.005 \| good	0.155 \| 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?