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

The PM10 concentration in San Jose, California is 56.163 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 0.584 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 38.971 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 6.446 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 12.564 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)

12.56 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

56.16 μg/m³

155

255

425

605+

Ozone (O₃)

38.97 ppb

201

201+

Sulfur Dioxide (SO₂)

0.58 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.45 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.23 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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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
2026-03-08T05:00:00.000Z	33 \| good	5.534 \| good	24.753 \| good	30.932 \| good	0.507 \| good	8.363 \| good	0.301 \| good
2026-03-08T06:00:00.000Z	33 \| good	5.569 \| good	25.009 \| good	23.011 \| good	0.517 \| good	12.335 \| good	0.301 \| good
2026-03-08T07:00:00.000Z	44 \| good	7.921 \| good	35.737 \| good	16.119 \| good	0.473 \| good	17.309 \| good	0.548 \| good
2026-03-08T08:00:00.000Z	44 \| good	7.78 \| good	34.431 \| good	12.144 \| good	0.461 \| good	18.457 \| good	0.548 \| good
2026-03-08T09:00:00.000Z	44 \| good	7.775 \| good	34.44 \| good	12.149 \| good	0.635 \| good	18.467 \| good	0.548 \| good
2026-03-08T10:00:00.000Z	44 \| good	7.794 \| good	34.582 \| good	12.148 \| good	0.35 \| good	7.351 \| good	0.226 \| good
2026-03-08T11:00:00.000Z	44 \| good	7.963 \| good	22.955 \| good	12.217 \| good	0.383 \| good	10.96 \| good	0.2 \| good
2026-03-08T12:00:00.000Z	33 \| good	6.237 \| good	13.747 \| good	17.352 \| good	0.184 \| good	13.912 \| good	0.473 \| good
2026-03-08T13:00:00.000Z	16 \| good	3.382 \| good	15.336 \| good	17.337 \| good	0.55 \| good	5.477 \| good	0.202 \| good
2026-03-08T14:00:00.000Z	22 \| good	4.383 \| good	19.09 \| good	22.011 \| good	0.404 \| good	6.587 \| good	0.303 \| good
2026-03-08T15:00:00.000Z	22 \| good	3.814 \| good	17.027 \| good	24.009 \| good	0.601 \| good	5.23 \| good	0.227 \| good
2026-03-08T16:00:00.000Z	25 \| good	3.283 \| good	14.286 \| good	26.959 \| good	0.575 \| good	6.739 \| good	0.252 \| good
2026-03-08T17:00:00.000Z	23 \| good	3.648 \| good	15.815 \| good	25.003 \| good	0.554 \| good	8.508 \| good	0.352 \| good
2026-03-08T18:00:00.000Z	22 \| good	3.822 \| good	17.315 \| good	24.028 \| good	0.747 \| good	5.246 \| good	0.227 \| good
2026-03-08T19:00:00.000Z	27 \| good	4.595 \| good	20.25 \| good	28.002 \| good	0.817 \| good	5.294 \| good	0.252 \| good
2026-03-08T20:00:00.000Z	30 \| good	4.136 \| good	18.545 \| good	32.001 \| good	0.96 \| good	5.607 \| good	0.226 \| good
2026-03-08T21:00:00.000Z	31 \| good	3.422 \| good	14.995 \| good	33.005 \| good	1.016 \| good	6.432 \| good	0.226 \| good
2026-03-08T22:00:00.000Z	32 \| good	2.987 \| good	13.447 \| good	35.043 \| good	0.922 \| good	4.875 \| good	0.201 \| good
2026-03-08T23:00:00.000Z	33 \| good	2.711 \| good	11.691 \| good	36.032 \| good	0.75 \| good	3.747 \| good	0.226 \| good
2026-03-09T00:00:00.000Z	34 \| good	2.844 \| good	11.962 \| good	37.076 \| good	0.622 \| good	3.656 \| good	0.226 \| good
2026-03-09T01:00:00.000Z	36 \| good	3.42 \| good	14.115 \| good	39.051 \| good	0.487 \| good	5.487 \| good	0.226 \| good
2026-03-09T02:00:00.000Z	38 \| good	4.71 \| good	20.798 \| good	41.026 \| good	0.54 \| good	5.052 \| good	0.226 \| good
2026-03-09T03:00:00.000Z	66 \| moderate	17.062 \| fine	76.025 \| fine	35.301 \| good	2.02 \| good	20.602 \| good	0.249 \| good
2026-03-09T04:00:00.000Z	39 \| good	5.171 \| good	22.882 \| good	41.955 \| good	0.543 \| good	7.948 \| good	0.326 \| good
2026-03-09T05:00:00.000Z	38 \| good	6.921 \| good	30.706 \| good	37.966 \| good	0.469 \| good	15.833 \| good	0.403 \| good
2026-03-09T06:00:00.000Z	38 \| good	7.297 \| good	32.594 \| good	33.944 \| good	0.54 \| good	10.821 \| good	0.377 \| good
2026-03-09T07:00:00.000Z	38 \| good	7.268 \| good	31.95 \| good	28.997 \| good	0.555 \| good	15.492 \| good	0.451 \| good
2026-03-09T08:00:00.000Z	49 \| good	8.544 \| good	38.57 \| good	27.978 \| good	0.586 \| good	15.287 \| good	0.377 \| good
2026-03-09T09:00:00.000Z	49 \| good	9.263 \| good	41.105 \| good	24.009 \| good	0.543 \| good	15.975 \| good	0.377 \| good
2026-03-09T10:00:00.000Z	49 \| good	8.944 \| good	39.507 \| good	21.04 \| good	0.491 \| good	13.401 \| good	0.4 \| good
2026-03-09T11:00:00.000Z	49 \| good	9.204 \| good	41.041 \| good	14.153 \| good	0.632 \| good	13.779 \| good	0.374 \| good
2026-03-09T12:00:00.000Z	49 \| good	9.323 \| good	41.872 \| good	14.15 \| good	0.61 \| good	14.358 \| good	0.374 \| good
2026-03-09T13:00:00.000Z	49 \| good	8.957 \| good	40.715 \| good	14.149 \| good	0.594 \| good	13.71 \| good	0.301 \| good
2026-03-09T14:00:00.000Z	44 \| good	8.351 \| good	36.341 \| good	9.115 \| good	0.72 \| good	14.188 \| good	0.4 \| good
2026-03-09T15:00:00.000Z	38 \| good	6.789 \| good	30.276 \| good	8.113 \| good	0.612 \| good	16.219 \| good	0.426 \| good
2026-03-09T16:00:00.000Z	33 \| good	6.01 \| good	26.057 \| good	8.136 \| good	0.673 \| good	17.885 \| good	0.6 \| good
2026-03-09T17:00:00.000Z	38 \| good	7.134 \| good	32.058 \| good	9.186 \| good	0.391 \| good	18.586 \| good	0.699 \| good
2026-03-09T18:00:00.000Z	49 \| good	9.433 \| good	41.381 \| good	13.14 \| good	0.359 \| good	15.523 \| good	0.499 \| good
2026-03-09T19:00:00.000Z	54 \| moderate	10.929 \| good	48.733 \| good	15.163 \| good	0.672 \| good	13.634 \| good	0.474 \| good
2026-03-09T20:00:00.000Z	56 \| moderate	11.545 \| good	51.432 \| good	19.12 \| good	0.874 \| good	12.705 \| good	0.374 \| good
2026-03-09T21:00:00.000Z	58 \| moderate	13.305 \| fine	60.291 \| fine	24.086 \| good	0.614 \| good	11.874 \| good	0.3 \| good
2026-03-09T22:00:00.000Z	58 \| moderate	13.192 \| fine	58.954 \| fine	30.105 \| good	0.405 \| good	7.92 \| good	0.3 \| good
2026-03-09T23:00:00.000Z	58 \| moderate	13.19 \| fine	59.247 \| fine	35.022 \| good	0.874 \| good	5.928 \| good	0.226 \| good
2026-03-10T00:00:00.000Z	60 \| moderate	13.781 \| fine	61.544 \| fine	36.033 \| good	0.708 \| good	6.321 \| good	0.226 \| good
2026-03-10T01:00:00.000Z	58 \| moderate	13.226 \| fine	59.506 \| fine	39.995 \| good	0.706 \| good	7.475 \| good	0.3 \| good
2026-03-10T02:00:00.000Z	58 \| moderate	13.361 \| fine	60.824 \| fine	43.953 \| good	0.638 \| good	6.099 \| good	0.226 \| good
2026-03-10T03:00:00.000Z	52 \| moderate	9.947 \| good	44.115 \| good	31.564 \| good	1.816 \| good	15.816 \| good	0.213 \| good
2026-03-10T04:00:00.000Z	58 \| moderate	12.564 \| fine	56.163 \| fine	38.971 \| good	0.584 \| good	6.446 \| good	0.226 \| good
2026-03-10T04:00:00.000Z	58 \| moderate	12.564 \| fine	56.163 \| fine	38.971 \| good	0.584 \| good	6.446 \| good	0.226 \| good
2026-03-10T05:00:00.000Z	49 \| good	9.324 \| good	41.699 \| good	29.958 \| good	1.225 \| good	16.113 \| good	0.197 \| good
2026-03-10T06:00:00.000Z	54 \| moderate	11.147 \| good	49.272 \| good	31.265 \| good	1.173 \| good	17.614 \| good	0.203 \| good
2026-03-10T07:00:00.000Z	38 \| good	6.749 \| good	30.054 \| good	36.079 \| good	1.084 \| good	16.064 \| good	0.197 \| good
2026-03-10T08:00:00.000Z	35 \| good	2.845 \| good	12.405 \| good	37.897 \| good	0.996 \| good	14.514 \| good	0.192 \| good
2026-03-10T09:00:00.000Z	34 \| good	2.365 \| good	9.692 \| good	36.98 \| good	0.907 \| good	12.964 \| good	0.186 \| good
2026-03-10T10:00:00.000Z	38 \| good	2.534 \| good	10.431 \| good	41.479 \| good	0.855 \| good	11.57 \| good	0.18 \| good
2026-03-10T11:00:00.000Z	39 \| good	1.183 \| good	4.606 \| good	41.605 \| good	0.802 \| good	10.177 \| good	0.173 \| good
2026-03-10T12:00:00.000Z	38 \| good	1.316 \| good	5.193 \| good	41.03 \| good	0.749 \| good	8.783 \| good	0.167 \| good
2026-03-10T13:00:00.000Z	36 \| good	2.996 \| good	12.64 \| good	38.79 \| good	0.761 \| good	9.157 \| good	0.171 \| good
2026-03-10T14:00:00.000Z	33 \| good	5.166 \| good	22.167 \| good	35.921 \| good	0.773 \| good	9.532 \| good	0.175 \| good
2026-03-10T15:00:00.000Z	30 \| good	2.123 \| good	8.574 \| good	31.851 \| good	0.784 \| good	9.906 \| good	0.179 \| good
2026-03-10T16:00:00.000Z	31 \| good	2.202 \| good	9.136 \| good	34.161 \| good	0.837 \| good	7.911 \| good	0.168 \| good
2026-03-10T17:00:00.000Z	33 \| good	2.743 \| good	11.323 \| good	36.454 \| good	0.89 \| good	5.916 \| good	0.158 \| good
2026-03-10T18:00:00.000Z	44 \| good	8.133 \| good	35.749 \| good	36.053 \| good	0.943 \| good	3.921 \| good	0.147 \| good
2026-03-10T19:00:00.000Z	52 \| moderate	10.483 \| good	46.508 \| good	38.958 \| good	0.958 \| good	3.639 \| good	0.146 \| good
2026-03-10T20:00:00.000Z	52 \| moderate	9.807 \| good	43.456 \| good	40.295 \| good	0.974 \| good	3.357 \| good	0.145 \| good
2026-03-10T21:00:00.000Z	49 \| good	8.72 \| good	38.62 \| good	43.368 \| good	0.989 \| good	3.075 \| good	0.143 \| good
2026-03-10T22:00:00.000Z	44 \| good	7.798 \| good	34.312 \| good	43.404 \| good	0.995 \| good	3.139 \| good	0.143 \| good
2026-03-10T23:00:00.000Z	44 \| good	7.512 \| good	33.167 \| good	42.095 \| good	1.001 \| good	3.203 \| good	0.143 \| good
2026-03-11T00:00:00.000Z	44 \| good	8.437 \| good	36.799 \| good	40.829 \| good	1.007 \| good	3.266 \| good	0.143 \| good
2026-03-11T01:00:00.000Z	36 \| good	5.479 \| good	23.717 \| good	39.074 \| good	1.016 \| good	6.064 \| good	0.156 \| good
2026-03-11T02:00:00.000Z	38 \| good	7.192 \| good	31.783 \| good	37.818 \| good	1.025 \| good	8.862 \| good	0.169 \| good
2026-03-11T03:00:00.000Z	38 \| good	7.264 \| good	32.153 \| good	32.087 \| good	1.035 \| good	11.66 \| good	0.182 \| good
2026-03-11T04:00:00.000Z	49 \| good	8.512 \| good	37.193 \| good	30.581 \| good	1.094 \| good	13.722 \| good	0.195 \| good
2026-03-11T05:00:00.000Z	54 \| moderate	10.929 \| good	48.495 \| good	30.557 \| good	1.154 \| good	15.784 \| good	0.207 \| good
2026-03-11T06:00:00.000Z	52 \| moderate	10.366 \| good	12.905 \| good	19.589 \| good	1.212 \| good	17.758 \| good	0.219 \| good
2026-03-11T07:00:00.000Z	49 \| good	8.977 \| good	39.78 \| good	26.094 \| good	1.241 \| good	18.124 \| good	0.223 \| good
2026-03-11T08:00:00.000Z	30 \| good	1.635 \| good	6.96 \| good	32.017 \| good	1.267 \| good	18.402 \| good	0.226 \| good
2026-03-11T09:00:00.000Z	29 \| good	3.159 \| good	13.789 \| good	30.695 \| good	1.294 \| good	18.68 \| good	0.229 \| good
2026-03-11T10:00:00.000Z	27 \| good	5.12 \| good	22.105 \| good	18.215 \| good	1.297 \| good	18.204 \| good	0.226 \| good
2026-03-11T11:00:00.000Z	33 \| good	5.894 \| good	26.038 \| good	17.584 \| good	1.3 \| good	17.729 \| good	0.223 \| good
2026-03-11T12:00:00.000Z	64 \| moderate	15.671 \| fine	18.224 \| good	13.085 \| good	1.306 \| good	17.25 \| good	0.22 \| good
2026-03-11T13:00:00.000Z	62 \| moderate	15.466 \| fine	17.971 \| good	13.242 \| good	1.386 \| good	16.78 \| good	0.228 \| good
2026-03-11T14:00:00.000Z	62 \| moderate	15.468 \| fine	17.9 \| good	13.399 \| good	1.465 \| good	16.31 \| good	0.235 \| good
2026-03-11T15:00:00.000Z	66 \| moderate	16.691 \| fine	18.87 \| good	13.556 \| good	1.545 \| good	15.841 \| good	0.243 \| good
2026-03-11T16:00:00.000Z	62 \| moderate	15.378 \| fine	16.805 \| good	20.328 \| good	1.686 \| good	13.032 \| good	0.222 \| good
2026-03-11T17:00:00.000Z	56 \| moderate	12.304 \| fine	55.119 \| fine	25.919 \| good	1.82 \| good	10.23 \| good	0.202 \| good
2026-03-11T18:00:00.000Z	44 \| good	8.403 \| good	10.371 \| good	33.872 \| good	1.968 \| good	7.415 \| good	0.18 \| good
2026-03-11T19:00:00.000Z	38 \| good	7.278 \| good	9.986 \| good	37.906 \| good	1.76 \| good	6.342 \| good	0.172 \| good
2026-03-11T20:00:00.000Z	39 \| good	6.635 \| good	9.494 \| good	41.94 \| good	1.552 \| good	5.27 \| good	0.165 \| good
2026-03-11T21:00:00.000Z	43 \| good	6.52 \| good	9.438 \| good	45.975 \| good	1.345 \| good	4.197 \| good	0.157 \| good
2026-03-11T22:00:00.000Z	43 \| good	6.774 \| good	9.811 \| good	46.209 \| good	1.353 \| good	4.38 \| good	0.158 \| good
2026-03-11T23:00:00.000Z	43 \| good	7.073 \| good	10.145 \| good	46.444 \| good	1.362 \| good	4.564 \| good	0.159 \| good
2026-03-12T00:00:00.000Z	44 \| good	7.372 \| good	10.469 \| good	46.678 \| good	1.371 \| good	4.747 \| good	0.16 \| good
2026-03-12T01:00:00.000Z	44 \| good	7.921 \| good	11.008 \| good	39.705 \| good	1.474 \| good	8.829 \| good	0.182 \| good
2026-03-12T02:00:00.000Z	49 \| good	9.236 \| good	12.146 \| good	32.731 \| good	1.578 \| good	12.91 \| good	0.204 \| good
2026-03-12T03:00:00.000Z	54 \| moderate	11.041 \| good	13.804 \| good	25.757 \| good	1.682 \| good	16.991 \| good	0.225 \| good
2026-03-12T04:00:00.000Z	58 \| moderate	13.045 \| fine	15.726 \| good	21.448 \| good	1.863 \| good	19.588 \| good	0.246 \| good

San Jose

Get reliable air quality data to drive your business

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

0.20ppm

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 12:00:00 on 2026-03-10.

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 04:00:00 on 2026-03-09.

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

As of now, the AQI in San Jose, California is 58, 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 12.564 μg/m³.

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

The PM₁₀ concentration in San Jose, California is 56.163 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 0.226 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 0.584 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 38.971 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 6.446 ppb.

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