What is the PM10 level in San Jose, California at the moment?

The PM10 concentration in San Jose, California is 63.294 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in San Jose, California at the moment?

Currently, San Jose, California has a sulfur dioxide (SO2) concentration of 0.491 ppb.

What is the ozone (O3) level in San Jose, California at the moment?

The current ozone (O3) level in San Jose, California at the moment is 10.958 ppm.

What is the nitrogen dioxide (NO2) level in San Jose, California at the moment?

Nitrogen dioxide (NO2) level in San Jose, California at the moment is 7.483 ppb.

Live air quality index in San Jose, California today

Q: What is the PM2.5 level in San Jose, California at the moment?

PM2.5 levels in San Jose, California are currently 14.243 μg/m3.

Stay updated with real-time air quality in San Jose, 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

San Jose, California

Last updated: ... (Local time)

Major air pollutants in San Jose, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

14.24 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

63.29 μg/m³

155

255

425

605+

Ozone (O₃)

10.96 ppb

201

201+

Sulfur Dioxide (SO₂)

0.49 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.48 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.33 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

San Jose, California

Get Live Pollen Counts

San Jose, California

Scroll To Air Quality Map

Track live San Jose, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-06T02:00:00.000Z	67 \| moderate	17.923 \| fine	79.202 \| fine	15.948 \| good	0.433 \| good	18.233 \| good	0.399 \| good
2025-12-06T03:00:00.000Z	67 \| moderate	18.41 \| fine	80.901 \| fine	15.882 \| good	0.411 \| good	20.651 \| good	0.5 \| good
2025-12-06T04:00:00.000Z	67 \| moderate	18.095 \| fine	80.202 \| fine	13.911 \| good	0.439 \| good	20.247 \| good	0.478 \| good
2025-12-06T05:00:00.000Z	71 \| moderate	20.352 \| fine	89.446 \| fine	8.965 \| good	0.456 \| good	24.972 \| good	0.651 \| good
2025-12-06T06:00:00.000Z	75 \| moderate	21.605 \| fine	93.739 \| fine	3.061 \| good	0.488 \| good	26.637 \| good	0.876 \| good
2025-12-06T07:00:00.000Z	82 \| moderate	26.221 \| fine	114.314 \| fine	3.757 \| good	0.516 \| good	25.964 \| good	1.074 \| good
2025-12-06T08:00:00.000Z	82 \| moderate	26.308 \| fine	114.807 \| fine	5.518 \| good	0.451 \| good	24.153 \| good	1.022 \| good
2025-12-06T09:00:00.000Z	82 \| moderate	26.302 \| fine	114.72 \| fine	7.306 \| good	0.464 \| good	24.151 \| good	1.022 \| good
2025-12-06T10:00:00.000Z	82 \| moderate	26.285 \| fine	114.879 \| fine	12.778 \| good	0.893 \| good	19.81 \| good	0.437 \| good
2025-12-06T11:00:00.000Z	61 \| moderate	13.231 \| fine	74.834 \| fine	13.162 \| good	0.843 \| good	19.477 \| good	0.382 \| good
2025-12-06T12:00:00.000Z	67 \| moderate	17.906 \| fine	67.161 \| fine	5.074 \| good	0.402 \| good	6.981 \| good	0.368 \| good
2025-12-06T13:00:00.000Z	81 \| moderate	24.646 \| fine	108.047 \| fine	6.826 \| good	0.388 \| good	6.893 \| good	0.894 \| good
2025-12-06T14:00:00.000Z	79 \| moderate	23.575 \| fine	103.425 \| fine	8.063 \| good	0.505 \| good	12.412 \| good	0.896 \| good
2025-12-06T15:00:00.000Z	79 \| moderate	24.169 \| fine	105.117 \| fine	6.242 \| good	0.407 \| good	14.31 \| good	0.944 \| good
2025-12-06T16:00:00.000Z	71 \| moderate	20.13 \| fine	88.425 \| fine	2.07 \| good	0.384 \| good	15.383 \| good	0.697 \| good
2025-12-06T17:00:00.000Z	67 \| moderate	18.208 \| fine	81.171 \| fine	4.069 \| good	0.438 \| good	13.799 \| good	0.45 \| good
2025-12-06T18:00:00.000Z	64 \| moderate	16.073 \| fine	70.854 \| fine	6.042 \| good	0.509 \| good	9.363 \| good	0.351 \| good
2025-12-06T19:00:00.000Z	66 \| moderate	16.768 \| fine	74.619 \| fine	7.022 \| good	0.517 \| good	10.169 \| good	0.351 \| good
2025-12-06T20:00:00.000Z	69 \| moderate	19.116 \| fine	84.782 \| fine	8.01 \| good	0.534 \| good	9.16 \| good	0.351 \| good
2025-12-06T21:00:00.000Z	66 \| moderate	17.144 \| fine	76.336 \| fine	9.984 \| good	0.629 \| good	8.172 \| good	0.351 \| good
2025-12-06T22:00:00.000Z	66 \| moderate	17.398 \| fine	77.976 \| fine	12.96 \| good	0.644 \| good	7.283 \| good	0.351 \| good
2025-12-06T23:00:00.000Z	69 \| moderate	18.594 \| fine	81.714 \| fine	14.935 \| good	0.554 \| good	7.386 \| good	0.351 \| good
2025-12-07T00:00:00.000Z	64 \| moderate	16.268 \| fine	72.958 \| fine	13.934 \| good	0.491 \| good	7.805 \| good	0.325 \| good
2025-12-07T01:00:00.000Z	64 \| moderate	15.584 \| fine	70.123 \| fine	13.947 \| good	0.448 \| good	7.779 \| good	0.325 \| good
2025-12-07T02:00:00.000Z	64 \| moderate	16.001 \| fine	71.512 \| fine	10.995 \| good	0.405 \| good	11.047 \| good	0.399 \| good
2025-12-07T03:00:00.000Z	66 \| moderate	16.517 \| fine	73.457 \| fine	8.016 \| good	0.427 \| good	14.135 \| good	0.425 \| good
2025-12-07T04:00:00.000Z	66 \| moderate	16.774 \| fine	74.46 \| fine	7.022 \| good	0.397 \| good	16.633 \| good	0.499 \| good
2025-12-07T05:00:00.000Z	67 \| moderate	18.396 \| fine	81.323 \| fine	5.016 \| good	0.425 \| good	19.188 \| good	0.599 \| good
2025-12-07T06:00:00.000Z	73 \| moderate	20.578 \| fine	90.812 \| fine	4.026 \| good	0.43 \| good	18.89 \| good	0.798 \| good
2025-12-07T07:00:00.000Z	73 \| moderate	21.03 \| fine	93.207 \| fine	3.025 \| good	0.413 \| good	17.283 \| good	1.019 \| good
2025-12-07T08:00:00.000Z	81 \| moderate	24.671 \| fine	108.427 \| fine	3.014 \| good	0.402 \| good	15.592 \| good	1.167 \| good
2025-12-07T09:00:00.000Z	81 \| moderate	24.717 \| fine	108.712 \| fine	3.01 \| good	0.398 \| good	15.598 \| good	1.167 \| good
2025-12-07T10:00:00.000Z	81 \| moderate	24.711 \| fine	108.715 \| fine	3.009 \| good	0.485 \| good	3.655 \| good	0.283 \| good
2025-12-07T11:00:00.000Z	73 \| moderate	20.525 \| fine	84.227 \| fine	3.01 \| good	0.509 \| good	3.308 \| good	0.261 \| good
2025-12-07T12:00:00.000Z	66 \| moderate	17.14 \| fine	50.721 \| good	5.133 \| good	0.371 \| good	6.7 \| good	0.252 \| good
2025-12-07T13:00:00.000Z	73 \| moderate	21.393 \| fine	94.303 \| fine	6.197 \| good	0.382 \| good	9.786 \| good	0.598 \| good
2025-12-07T14:00:00.000Z	71 \| moderate	20.24 \| fine	89.042 \| fine	7.643 \| good	0.428 \| good	14.079 \| good	0.325 \| good
2025-12-07T15:00:00.000Z	66 \| moderate	16.631 \| fine	73.904 \| fine	1.046 \| good	0.402 \| good	13.392 \| good	0.399 \| good
2025-12-07T16:00:00.000Z	66 \| moderate	17.196 \| fine	76.954 \| fine	2.996 \| good	0.38 \| good	13.999 \| good	0.351 \| good
2025-12-07T17:00:00.000Z	64 \| moderate	16.461 \| fine	73.637 \| fine	5.959 \| good	0.394 \| good	12.131 \| good	0.351 \| good
2025-12-07T18:00:00.000Z	64 \| moderate	15.793 \| fine	70.602 \| fine	8.937 \| good	0.421 \| good	9.859 \| good	0.351 \| good
2025-12-07T19:00:00.000Z	62 \| moderate	14.958 \| fine	67.209 \| fine	7.959 \| good	0.47 \| good	9.751 \| good	0.351 \| good
2025-12-07T20:00:00.000Z	60 \| moderate	13.726 \| fine	61.374 \| fine	7.964 \| good	0.475 \| good	9.566 \| good	0.377 \| good
2025-12-07T21:00:00.000Z	62 \| moderate	15.409 \| fine	68.546 \| fine	8.985 \| good	0.566 \| good	8.093 \| good	0.351 \| good
2025-12-07T22:00:00.000Z	60 \| moderate	13.896 \| fine	61.968 \| fine	10.021 \| good	0.511 \| good	6.595 \| good	0.326 \| good
2025-12-07T23:00:00.000Z	62 \| moderate	14.746 \| fine	66.639 \| fine	11.016 \| good	0.521 \| good	6.182 \| good	0.325 \| good
2025-12-08T00:00:00.000Z	60 \| moderate	14.243 \| fine	63.294 \| fine	10.958 \| good	0.491 \| good	7.483 \| good	0.325 \| good
2025-12-08T01:00:00.000Z	60 \| moderate	14.243 \| fine	63.294 \| fine	10.958 \| good	0.491 \| good	7.483 \| good	0.325 \| good
2025-12-08T02:00:00.000Z	62 \| moderate	15.306 \| fine	68.443 \| fine	5.681 \| good	2.816 \| good	23.523 \| good	0.281 \| good
2025-12-08T03:00:00.000Z	67 \| moderate	18.064 \| fine	79.744 \| fine	1.653 \| good	2.929 \| good	27.939 \| good	0.322 \| good
2025-12-08T04:00:00.000Z	69 \| moderate	18.854 \| fine	83.128 \| fine	2.082 \| good	3.141 \| good	28.203 \| good	0.336 \| good
2025-12-08T05:00:00.000Z	71 \| moderate	20.11 \| fine	88.275 \| fine	2.047 \| good	3.353 \| good	28.466 \| good	0.35 \| good
2025-12-08T06:00:00.000Z	67 \| moderate	18.369 \| fine	81.166 \| fine	3.301 \| good	3.565 \| good	28.73 \| good	0.365 \| good
2025-12-08T07:00:00.000Z	71 \| moderate	19.594 \| fine	86.523 \| fine	2.533 \| good	3.443 \| good	27.767 \| good	0.352 \| good
2025-12-08T08:00:00.000Z	73 \| moderate	20.803 \| fine	90.921 \| fine	2.589 \| good	3.321 \| good	26.804 \| good	0.339 \| good
2025-12-08T09:00:00.000Z	71 \| moderate	19.523 \| fine	86.514 \| fine	2.924 \| good	3.199 \| good	25.841 \| good	0.326 \| good
2025-12-08T10:00:00.000Z	69 \| moderate	18.579 \| fine	81.594 \| fine	3.216 \| good	2.937 \| good	24.243 \| good	0.31 \| good
2025-12-08T11:00:00.000Z	67 \| moderate	17.941 \| fine	79.529 \| fine	5.426 \| good	2.675 \| good	22.646 \| good	0.295 \| good
2025-12-08T12:00:00.000Z	67 \| moderate	18.055 \| fine	79.325 \| fine	3.243 \| good	2.414 \| good	21.049 \| good	0.28 \| good
2025-12-08T13:00:00.000Z	67 \| moderate	17.521 \| fine	77.605 \| fine	3.088 \| good	2.317 \| good	20.866 \| good	0.282 \| good
2025-12-08T14:00:00.000Z	60 \| moderate	14.373 \| fine	64.81 \| fine	7.521 \| good	2.22 \| good	20.683 \| good	0.285 \| good
2025-12-08T15:00:00.000Z	62 \| moderate	14.505 \| fine	64.653 \| fine	3.282 \| good	2.123 \| good	20.5 \| good	0.288 \| good
2025-12-08T16:00:00.000Z	54 \| moderate	10.731 \| good	47.511 \| good	6.777 \| good	2.356 \| good	18.466 \| good	0.277 \| good
2025-12-08T17:00:00.000Z	62 \| moderate	14.678 \| fine	65.735 \| fine	6.197 \| good	2.59 \| good	16.432 \| good	0.266 \| good
2025-12-08T18:00:00.000Z	64 \| moderate	15.596 \| fine	69.606 \| fine	8.609 \| good	2.823 \| good	14.398 \| good	0.255 \| good
2025-12-08T19:00:00.000Z	62 \| moderate	15.103 \| fine	67.881 \| fine	12.616 \| good	2.755 \| good	12.692 \| good	0.229 \| good
2025-12-08T20:00:00.000Z	69 \| moderate	19.013 \| fine	84.163 \| fine	15.37 \| good	2.687 \| good	10.986 \| good	0.203 \| good
2025-12-08T21:00:00.000Z	64 \| moderate	16.108 \| fine	71.418 \| fine	17.652 \| good	2.62 \| good	9.28 \| good	0.177 \| good
2025-12-08T22:00:00.000Z	54 \| moderate	11.112 \| good	49.294 \| good	18.14 \| good	2.66 \| good	10.83 \| good	0.183 \| good
2025-12-08T23:00:00.000Z	60 \| moderate	13.572 \| fine	60.628 \| fine	16.15 \| good	2.699 \| good	12.38 \| good	0.19 \| good
2025-12-09T00:00:00.000Z	58 \| moderate	12.685 \| fine	57.478 \| fine	11.032 \| good	2.739 \| good	13.93 \| good	0.196 \| good
2025-12-09T01:00:00.000Z	60 \| moderate	14.348 \| fine	64.31 \| fine	6.584 \| good	2.74 \| good	18.581 \| good	0.236 \| good
2025-12-09T02:00:00.000Z	58 \| moderate	13.269 \| fine	59.91 \| fine	5.662 \| good	2.74 \| good	23.232 \| good	0.277 \| good
2025-12-09T03:00:00.000Z	60 \| moderate	14.362 \| fine	64.294 \| fine	2.517 \| good	2.74 \| good	27.883 \| good	0.317 \| good
2025-12-09T04:00:00.000Z	66 \| moderate	16.733 \| fine	74.223 \| fine	2.406 \| good	2.907 \| good	28.045 \| good	0.333 \| good
2025-12-09T05:00:00.000Z	67 \| moderate	18.179 \| fine	80.37 \| fine	2.644 \| good	3.074 \| good	28.207 \| good	0.348 \| good
2025-12-09T06:00:00.000Z	67 \| moderate	18.246 \| fine	80.355 \| fine	2.709 \| good	3.242 \| good	28.368 \| good	0.364 \| good
2025-12-09T07:00:00.000Z	66 \| moderate	16.962 \| fine	75.72 \| fine	2.739 \| good	3.114 \| good	27.073 \| good	0.358 \| good
2025-12-09T08:00:00.000Z	66 \| moderate	17.341 \| fine	76.824 \| fine	2.851 \| good	2.986 \| good	25.778 \| good	0.352 \| good
2025-12-09T09:00:00.000Z	60 \| moderate	13.505 \| fine	59.989 \| fine	3.049 \| good	2.859 \| good	24.482 \| good	0.346 \| good
2025-12-09T10:00:00.000Z	58 \| moderate	13.341 \| fine	59.703 \| fine	3.184 \| good	2.61 \| good	22.889 \| good	0.328 \| good
2025-12-09T11:00:00.000Z	56 \| moderate	12.376 \| fine	55.707 \| fine	6.772 \| good	2.361 \| good	21.296 \| good	0.31 \| good
2025-12-09T12:00:00.000Z	56 \| moderate	11.845 \| good	53.033 \| good	3.428 \| good	2.113 \| good	19.703 \| good	0.292 \| good
2025-12-09T13:00:00.000Z	56 \| moderate	12.358 \| fine	55.184 \| fine	3.681 \| good	2.206 \| good	20.118 \| good	0.286 \| good
2025-12-09T14:00:00.000Z	49 \| good	9.192 \| good	40.289 \| good	3.566 \| good	2.3 \| good	20.533 \| good	0.28 \| good
2025-12-09T15:00:00.000Z	52 \| moderate	10.224 \| good	45.609 \| good	3.308 \| good	2.394 \| good	20.947 \| good	0.274 \| good
2025-12-09T16:00:00.000Z	52 \| moderate	10.043 \| good	44.72 \| good	4.923 \| good	2.461 \| good	18.828 \| good	0.277 \| good
2025-12-09T17:00:00.000Z	56 \| moderate	11.711 \| good	51.519 \| good	3.929 \| good	2.528 \| good	16.708 \| good	0.279 \| good
2025-12-09T18:00:00.000Z	58 \| moderate	12.51 \| fine	56.63 \| fine	5.25 \| good	2.595 \| good	14.588 \| good	0.282 \| good
2025-12-09T19:00:00.000Z	56 \| moderate	12.405 \| fine	55.332 \| fine	8.843 \| good	2.633 \| good	12.887 \| good	0.242 \| good
2025-12-09T20:00:00.000Z	66 \| moderate	17.078 \| fine	75.91 \| fine	13.161 \| good	2.671 \| good	11.186 \| good	0.203 \| good
2025-12-09T21:00:00.000Z	64 \| moderate	16.243 \| fine	72.343 \| fine	14.58 \| good	2.709 \| good	9.485 \| good	0.163 \| good
2025-12-09T22:00:00.000Z	54 \| moderate	10.988 \| good	48.986 \| good	13.435 \| good	2.634 \| good	10.883 \| good	0.165 \| good
2025-12-09T23:00:00.000Z	62 \| moderate	15.48 \| fine	68.982 \| fine	11.03 \| good	2.558 \| good	12.281 \| good	0.167 \| good
2025-12-10T00:00:00.000Z	52 \| moderate	9.881 \| good	11.601 \| good	21.005 \| good	2.48 \| good	13.646 \| good	0.168 \| good
2025-12-10T01:00:00.000Z	62 \| moderate	15.449 \| fine	68.74 \| fine	5.357 \| good	2.592 \| good	17.814 \| good	0.21 \| good

San Jose

Get reliable air quality data to drive your business

San Jose, California air quality map: Stay updated on AQI near you

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How accurate is California, USA air quality data?

Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for San Jose, California?

The air quality information for San Jose, California is updated every hour for accuracy.

What time in the last 24 hours was the air quality in San Jose, California at its worst?

In the past 24 hours, the air quality in San Jose, California was at its worst at 10:00:00 on 2025-12-07.

When did San Jose, California experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in San Jose, California was observed at 12:00:00 on 2025-12-08.

What is the AQI in San Jose, California right now?

As of now, the AQI in San Jose, California is 60, indicating Moderate conditions.

What is the most common type of pollution in San Jose, California?

San Jose, California air has the highest levels of PM2.5.

What should I do in case of poor air quality in San Jose, California?

Poor air quality in San Jose, California means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in San Jose, California at the moment?

PM_2.5 levels in San Jose, California are currently 14.243 μg/m³.

What is the PM₁₀ level in San Jose, California at the moment?

The PM₁₀ concentration in San Jose, California is 63.294 μg/m³ at the moment.

What is the carbon monoxide (CO) level in San Jose, California at the moment?

The current carbon monoxide (CO) concentration in San Jose, California is 0.325 ppm.

What is the sulfur dioxide (SO₂) level in San Jose, California at the moment?

Currently, San Jose, California has a sulfur dioxide (SO₂) concentration of 0.491 ppb.

What is the ozone (O₃) level in San Jose, California at the moment?

The current ozone (O₃) level in San Jose, California at the moment is 10.958 ppm.

What is the nitrogen dioxide (NO₂) level in San Jose, California at the moment?

Nitrogen dioxide (NO₂) level in San Jose, California at the moment is 7.483 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-06T02:00:00.000Z	67 \| moderate	17.923 \| fine	79.202 \| fine	15.948 \| good	0.433 \| good	18.233 \| good	0.399 \| good
2025-12-06T03:00:00.000Z	67 \| moderate	18.41 \| fine	80.901 \| fine	15.882 \| good	0.411 \| good	20.651 \| good	0.5 \| good
2025-12-06T04:00:00.000Z	67 \| moderate	18.095 \| fine	80.202 \| fine	13.911 \| good	0.439 \| good	20.247 \| good	0.478 \| good
2025-12-06T05:00:00.000Z	71 \| moderate	20.352 \| fine	89.446 \| fine	8.965 \| good	0.456 \| good	24.972 \| good	0.651 \| good
2025-12-06T06:00:00.000Z	75 \| moderate	21.605 \| fine	93.739 \| fine	3.061 \| good	0.488 \| good	26.637 \| good	0.876 \| good
2025-12-06T07:00:00.000Z	82 \| moderate	26.221 \| fine	114.314 \| fine	3.757 \| good	0.516 \| good	25.964 \| good	1.074 \| good
2025-12-06T08:00:00.000Z	82 \| moderate	26.308 \| fine	114.807 \| fine	5.518 \| good	0.451 \| good	24.153 \| good	1.022 \| good
2025-12-06T09:00:00.000Z	82 \| moderate	26.302 \| fine	114.72 \| fine	7.306 \| good	0.464 \| good	24.151 \| good	1.022 \| good
2025-12-06T10:00:00.000Z	82 \| moderate	26.285 \| fine	114.879 \| fine	12.778 \| good	0.893 \| good	19.81 \| good	0.437 \| good
2025-12-06T11:00:00.000Z	61 \| moderate	13.231 \| fine	74.834 \| fine	13.162 \| good	0.843 \| good	19.477 \| good	0.382 \| good
2025-12-06T12:00:00.000Z	67 \| moderate	17.906 \| fine	67.161 \| fine	5.074 \| good	0.402 \| good	6.981 \| good	0.368 \| good
2025-12-06T13:00:00.000Z	81 \| moderate	24.646 \| fine	108.047 \| fine	6.826 \| good	0.388 \| good	6.893 \| good	0.894 \| good
2025-12-06T14:00:00.000Z	79 \| moderate	23.575 \| fine	103.425 \| fine	8.063 \| good	0.505 \| good	12.412 \| good	0.896 \| good
2025-12-06T15:00:00.000Z	79 \| moderate	24.169 \| fine	105.117 \| fine	6.242 \| good	0.407 \| good	14.31 \| good	0.944 \| good
2025-12-06T16:00:00.000Z	71 \| moderate	20.13 \| fine	88.425 \| fine	2.07 \| good	0.384 \| good	15.383 \| good	0.697 \| good
2025-12-06T17:00:00.000Z	67 \| moderate	18.208 \| fine	81.171 \| fine	4.069 \| good	0.438 \| good	13.799 \| good	0.45 \| good
2025-12-06T18:00:00.000Z	64 \| moderate	16.073 \| fine	70.854 \| fine	6.042 \| good	0.509 \| good	9.363 \| good	0.351 \| good
2025-12-06T19:00:00.000Z	66 \| moderate	16.768 \| fine	74.619 \| fine	7.022 \| good	0.517 \| good	10.169 \| good	0.351 \| good
2025-12-06T20:00:00.000Z	69 \| moderate	19.116 \| fine	84.782 \| fine	8.01 \| good	0.534 \| good	9.16 \| good	0.351 \| good
2025-12-06T21:00:00.000Z	66 \| moderate	17.144 \| fine	76.336 \| fine	9.984 \| good	0.629 \| good	8.172 \| good	0.351 \| good
2025-12-06T22:00:00.000Z	66 \| moderate	17.398 \| fine	77.976 \| fine	12.96 \| good	0.644 \| good	7.283 \| good	0.351 \| good
2025-12-06T23:00:00.000Z	69 \| moderate	18.594 \| fine	81.714 \| fine	14.935 \| good	0.554 \| good	7.386 \| good	0.351 \| good
2025-12-07T00:00:00.000Z	64 \| moderate	16.268 \| fine	72.958 \| fine	13.934 \| good	0.491 \| good	7.805 \| good	0.325 \| good
2025-12-07T01:00:00.000Z	64 \| moderate	15.584 \| fine	70.123 \| fine	13.947 \| good	0.448 \| good	7.779 \| good	0.325 \| good
2025-12-07T02:00:00.000Z	64 \| moderate	16.001 \| fine	71.512 \| fine	10.995 \| good	0.405 \| good	11.047 \| good	0.399 \| good
2025-12-07T03:00:00.000Z	66 \| moderate	16.517 \| fine	73.457 \| fine	8.016 \| good	0.427 \| good	14.135 \| good	0.425 \| good
2025-12-07T04:00:00.000Z	66 \| moderate	16.774 \| fine	74.46 \| fine	7.022 \| good	0.397 \| good	16.633 \| good	0.499 \| good
2025-12-07T05:00:00.000Z	67 \| moderate	18.396 \| fine	81.323 \| fine	5.016 \| good	0.425 \| good	19.188 \| good	0.599 \| good
2025-12-07T06:00:00.000Z	73 \| moderate	20.578 \| fine	90.812 \| fine	4.026 \| good	0.43 \| good	18.89 \| good	0.798 \| good
2025-12-07T07:00:00.000Z	73 \| moderate	21.03 \| fine	93.207 \| fine	3.025 \| good	0.413 \| good	17.283 \| good	1.019 \| good
2025-12-07T08:00:00.000Z	81 \| moderate	24.671 \| fine	108.427 \| fine	3.014 \| good	0.402 \| good	15.592 \| good	1.167 \| good
2025-12-07T09:00:00.000Z	81 \| moderate	24.717 \| fine	108.712 \| fine	3.01 \| good	0.398 \| good	15.598 \| good	1.167 \| good
2025-12-07T10:00:00.000Z	81 \| moderate	24.711 \| fine	108.715 \| fine	3.009 \| good	0.485 \| good	3.655 \| good	0.283 \| good
2025-12-07T11:00:00.000Z	73 \| moderate	20.525 \| fine	84.227 \| fine	3.01 \| good	0.509 \| good	3.308 \| good	0.261 \| good
2025-12-07T12:00:00.000Z	66 \| moderate	17.14 \| fine	50.721 \| good	5.133 \| good	0.371 \| good	6.7 \| good	0.252 \| good
2025-12-07T13:00:00.000Z	73 \| moderate	21.393 \| fine	94.303 \| fine	6.197 \| good	0.382 \| good	9.786 \| good	0.598 \| good
2025-12-07T14:00:00.000Z	71 \| moderate	20.24 \| fine	89.042 \| fine	7.643 \| good	0.428 \| good	14.079 \| good	0.325 \| good
2025-12-07T15:00:00.000Z	66 \| moderate	16.631 \| fine	73.904 \| fine	1.046 \| good	0.402 \| good	13.392 \| good	0.399 \| good
2025-12-07T16:00:00.000Z	66 \| moderate	17.196 \| fine	76.954 \| fine	2.996 \| good	0.38 \| good	13.999 \| good	0.351 \| good
2025-12-07T17:00:00.000Z	64 \| moderate	16.461 \| fine	73.637 \| fine	5.959 \| good	0.394 \| good	12.131 \| good	0.351 \| good
2025-12-07T18:00:00.000Z	64 \| moderate	15.793 \| fine	70.602 \| fine	8.937 \| good	0.421 \| good	9.859 \| good	0.351 \| good
2025-12-07T19:00:00.000Z	62 \| moderate	14.958 \| fine	67.209 \| fine	7.959 \| good	0.47 \| good	9.751 \| good	0.351 \| good
2025-12-07T20:00:00.000Z	60 \| moderate	13.726 \| fine	61.374 \| fine	7.964 \| good	0.475 \| good	9.566 \| good	0.377 \| good
2025-12-07T21:00:00.000Z	62 \| moderate	15.409 \| fine	68.546 \| fine	8.985 \| good	0.566 \| good	8.093 \| good	0.351 \| good
2025-12-07T22:00:00.000Z	60 \| moderate	13.896 \| fine	61.968 \| fine	10.021 \| good	0.511 \| good	6.595 \| good	0.326 \| good
2025-12-07T23:00:00.000Z	62 \| moderate	14.746 \| fine	66.639 \| fine	11.016 \| good	0.521 \| good	6.182 \| good	0.325 \| good
2025-12-08T00:00:00.000Z	60 \| moderate	14.243 \| fine	63.294 \| fine	10.958 \| good	0.491 \| good	7.483 \| good	0.325 \| good
2025-12-08T01:00:00.000Z	60 \| moderate	14.243 \| fine	63.294 \| fine	10.958 \| good	0.491 \| good	7.483 \| good	0.325 \| good
2025-12-08T02:00:00.000Z	62 \| moderate	15.306 \| fine	68.443 \| fine	5.681 \| good	2.816 \| good	23.523 \| good	0.281 \| good
2025-12-08T03:00:00.000Z	67 \| moderate	18.064 \| fine	79.744 \| fine	1.653 \| good	2.929 \| good	27.939 \| good	0.322 \| good
2025-12-08T04:00:00.000Z	69 \| moderate	18.854 \| fine	83.128 \| fine	2.082 \| good	3.141 \| good	28.203 \| good	0.336 \| good
2025-12-08T05:00:00.000Z	71 \| moderate	20.11 \| fine	88.275 \| fine	2.047 \| good	3.353 \| good	28.466 \| good	0.35 \| good
2025-12-08T06:00:00.000Z	67 \| moderate	18.369 \| fine	81.166 \| fine	3.301 \| good	3.565 \| good	28.73 \| good	0.365 \| good
2025-12-08T07:00:00.000Z	71 \| moderate	19.594 \| fine	86.523 \| fine	2.533 \| good	3.443 \| good	27.767 \| good	0.352 \| good
2025-12-08T08:00:00.000Z	73 \| moderate	20.803 \| fine	90.921 \| fine	2.589 \| good	3.321 \| good	26.804 \| good	0.339 \| good
2025-12-08T09:00:00.000Z	71 \| moderate	19.523 \| fine	86.514 \| fine	2.924 \| good	3.199 \| good	25.841 \| good	0.326 \| good
2025-12-08T10:00:00.000Z	69 \| moderate	18.579 \| fine	81.594 \| fine	3.216 \| good	2.937 \| good	24.243 \| good	0.31 \| good
2025-12-08T11:00:00.000Z	67 \| moderate	17.941 \| fine	79.529 \| fine	5.426 \| good	2.675 \| good	22.646 \| good	0.295 \| good
2025-12-08T12:00:00.000Z	67 \| moderate	18.055 \| fine	79.325 \| fine	3.243 \| good	2.414 \| good	21.049 \| good	0.28 \| good
2025-12-08T13:00:00.000Z	67 \| moderate	17.521 \| fine	77.605 \| fine	3.088 \| good	2.317 \| good	20.866 \| good	0.282 \| good
2025-12-08T14:00:00.000Z	60 \| moderate	14.373 \| fine	64.81 \| fine	7.521 \| good	2.22 \| good	20.683 \| good	0.285 \| good
2025-12-08T15:00:00.000Z	62 \| moderate	14.505 \| fine	64.653 \| fine	3.282 \| good	2.123 \| good	20.5 \| good	0.288 \| good
2025-12-08T16:00:00.000Z	54 \| moderate	10.731 \| good	47.511 \| good	6.777 \| good	2.356 \| good	18.466 \| good	0.277 \| good
2025-12-08T17:00:00.000Z	62 \| moderate	14.678 \| fine	65.735 \| fine	6.197 \| good	2.59 \| good	16.432 \| good	0.266 \| good
2025-12-08T18:00:00.000Z	64 \| moderate	15.596 \| fine	69.606 \| fine	8.609 \| good	2.823 \| good	14.398 \| good	0.255 \| good
2025-12-08T19:00:00.000Z	62 \| moderate	15.103 \| fine	67.881 \| fine	12.616 \| good	2.755 \| good	12.692 \| good	0.229 \| good
2025-12-08T20:00:00.000Z	69 \| moderate	19.013 \| fine	84.163 \| fine	15.37 \| good	2.687 \| good	10.986 \| good	0.203 \| good
2025-12-08T21:00:00.000Z	64 \| moderate	16.108 \| fine	71.418 \| fine	17.652 \| good	2.62 \| good	9.28 \| good	0.177 \| good
2025-12-08T22:00:00.000Z	54 \| moderate	11.112 \| good	49.294 \| good	18.14 \| good	2.66 \| good	10.83 \| good	0.183 \| good
2025-12-08T23:00:00.000Z	60 \| moderate	13.572 \| fine	60.628 \| fine	16.15 \| good	2.699 \| good	12.38 \| good	0.19 \| good
2025-12-09T00:00:00.000Z	58 \| moderate	12.685 \| fine	57.478 \| fine	11.032 \| good	2.739 \| good	13.93 \| good	0.196 \| good
2025-12-09T01:00:00.000Z	60 \| moderate	14.348 \| fine	64.31 \| fine	6.584 \| good	2.74 \| good	18.581 \| good	0.236 \| good
2025-12-09T02:00:00.000Z	58 \| moderate	13.269 \| fine	59.91 \| fine	5.662 \| good	2.74 \| good	23.232 \| good	0.277 \| good
2025-12-09T03:00:00.000Z	60 \| moderate	14.362 \| fine	64.294 \| fine	2.517 \| good	2.74 \| good	27.883 \| good	0.317 \| good
2025-12-09T04:00:00.000Z	66 \| moderate	16.733 \| fine	74.223 \| fine	2.406 \| good	2.907 \| good	28.045 \| good	0.333 \| good
2025-12-09T05:00:00.000Z	67 \| moderate	18.179 \| fine	80.37 \| fine	2.644 \| good	3.074 \| good	28.207 \| good	0.348 \| good
2025-12-09T06:00:00.000Z	67 \| moderate	18.246 \| fine	80.355 \| fine	2.709 \| good	3.242 \| good	28.368 \| good	0.364 \| good
2025-12-09T07:00:00.000Z	66 \| moderate	16.962 \| fine	75.72 \| fine	2.739 \| good	3.114 \| good	27.073 \| good	0.358 \| good
2025-12-09T08:00:00.000Z	66 \| moderate	17.341 \| fine	76.824 \| fine	2.851 \| good	2.986 \| good	25.778 \| good	0.352 \| good
2025-12-09T09:00:00.000Z	60 \| moderate	13.505 \| fine	59.989 \| fine	3.049 \| good	2.859 \| good	24.482 \| good	0.346 \| good
2025-12-09T10:00:00.000Z	58 \| moderate	13.341 \| fine	59.703 \| fine	3.184 \| good	2.61 \| good	22.889 \| good	0.328 \| good
2025-12-09T11:00:00.000Z	56 \| moderate	12.376 \| fine	55.707 \| fine	6.772 \| good	2.361 \| good	21.296 \| good	0.31 \| good
2025-12-09T12:00:00.000Z	56 \| moderate	11.845 \| good	53.033 \| good	3.428 \| good	2.113 \| good	19.703 \| good	0.292 \| good
2025-12-09T13:00:00.000Z	56 \| moderate	12.358 \| fine	55.184 \| fine	3.681 \| good	2.206 \| good	20.118 \| good	0.286 \| good
2025-12-09T14:00:00.000Z	49 \| good	9.192 \| good	40.289 \| good	3.566 \| good	2.3 \| good	20.533 \| good	0.28 \| good
2025-12-09T15:00:00.000Z	52 \| moderate	10.224 \| good	45.609 \| good	3.308 \| good	2.394 \| good	20.947 \| good	0.274 \| good
2025-12-09T16:00:00.000Z	52 \| moderate	10.043 \| good	44.72 \| good	4.923 \| good	2.461 \| good	18.828 \| good	0.277 \| good
2025-12-09T17:00:00.000Z	56 \| moderate	11.711 \| good	51.519 \| good	3.929 \| good	2.528 \| good	16.708 \| good	0.279 \| good
2025-12-09T18:00:00.000Z	58 \| moderate	12.51 \| fine	56.63 \| fine	5.25 \| good	2.595 \| good	14.588 \| good	0.282 \| good
2025-12-09T19:00:00.000Z	56 \| moderate	12.405 \| fine	55.332 \| fine	8.843 \| good	2.633 \| good	12.887 \| good	0.242 \| good
2025-12-09T20:00:00.000Z	66 \| moderate	17.078 \| fine	75.91 \| fine	13.161 \| good	2.671 \| good	11.186 \| good	0.203 \| good
2025-12-09T21:00:00.000Z	64 \| moderate	16.243 \| fine	72.343 \| fine	14.58 \| good	2.709 \| good	9.485 \| good	0.163 \| good
2025-12-09T22:00:00.000Z	54 \| moderate	10.988 \| good	48.986 \| good	13.435 \| good	2.634 \| good	10.883 \| good	0.165 \| good
2025-12-09T23:00:00.000Z	62 \| moderate	15.48 \| fine	68.982 \| fine	11.03 \| good	2.558 \| good	12.281 \| good	0.167 \| good
2025-12-10T00:00:00.000Z	52 \| moderate	9.881 \| good	11.601 \| good	21.005 \| good	2.48 \| good	13.646 \| good	0.168 \| good
2025-12-10T01:00:00.000Z	62 \| moderate	15.449 \| fine	68.74 \| fine	5.357 \| good	2.592 \| good	17.814 \| good	0.21 \| good

Live air quality index in San Jose, California today

Major air pollutants in San Jose, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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San Jose, California air quality map: Stay updated on AQI near you

Air quality in nearby cities

Santa Clara, California

Alum Rock, California

Campbell, California

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Cupertino, California

Los Gatos, California

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Frequently asked questions

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What is the sulfur dioxide (SO2) level in San Jose, California at the moment?

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What is the nitrogen dioxide (NO2) level in San Jose, California at the moment?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 level in San Jose, California at the moment?

What is the PM₁₀ level in San Jose, California at the moment?

What is the sulfur dioxide (SO₂) level in San Jose, California at the moment?

What is the ozone (O₃) level in San Jose, California at the moment?

What is the nitrogen dioxide (NO₂) level in San Jose, California at the moment?