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

The PM10 concentration in San Jose, California is 45.081 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 0.775 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 17.98 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 8.015 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 9.969 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)

14.79 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

66.93 μg/m³

155

255

425

605+

Ozone (O₃)

17.00 ppb

201

201+

Sulfur Dioxide (SO₂)

0.87 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

13.03 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.43 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2026-01-22T02:00:00.000Z	66 \| moderate	16.574 \| fine	73.335 \| fine	7.549 \| good	0.75 \| good	25.233 \| good	0.821 \| good
2026-01-22T03:00:00.000Z	66 \| moderate	16.948 \| fine	74.518 \| fine	4.161 \| good	0.723 \| good	28.173 \| good	0.921 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	17.043 \| fine	75.979 \| fine	3.143 \| good	0.761 \| good	25.849 \| good	0.846 \| good
2026-01-22T05:00:00.000Z	69 \| moderate	18.84 \| fine	83.666 \| fine	1.176 \| good	0.762 \| good	25.387 \| good	0.895 \| good
2026-01-22T06:00:00.000Z	69 \| moderate	19.074 \| fine	83.798 \| fine	1.125 \| good	0.828 \| good	26.204 \| good	0.92 \| good
2026-01-22T07:00:00.000Z	67 \| moderate	17.7 \| fine	78.952 \| fine	1.147 \| good	0.864 \| good	24.332 \| good	1.018 \| good
2026-01-22T08:00:00.000Z	71 \| moderate	19.89 \| fine	87.992 \| fine	1.156 \| good	0.956 \| good	24.151 \| good	1.069 \| good
2026-01-22T09:00:00.000Z	66 \| moderate	17.384 \| fine	77.316 \| fine	1.172 \| good	0.867 \| good	23.149 \| good	1.016 \| good
2026-01-22T10:00:00.000Z	69 \| moderate	18.812 \| fine	82.611 \| fine	3.518 \| good	0.863 \| good	22.618 \| good	1.112 \| good
2026-01-22T11:00:00.000Z	67 \| moderate	18.295 \| fine	80.567 \| fine	1.164 \| good	0.833 \| good	20.437 \| good	0.964 \| good
2026-01-22T12:00:00.000Z	60 \| moderate	14.185 \| fine	63.189 \| fine	1.478 \| good	0.82 \| good	19.423 \| good	0.89 \| good
2026-01-22T13:00:00.000Z	58 \| moderate	12.964 \| fine	58.101 \| fine	1.484 \| good	0.808 \| good	18.356 \| good	0.889 \| good
2026-01-22T14:00:00.000Z	60 \| moderate	14.304 \| fine	63.94 \| fine	2.01 \| good	0.782 \| good	15.565 \| good	0.82 \| good
2026-01-22T15:00:00.000Z	60 \| moderate	13.868 \| fine	62.704 \| fine	1.375 \| good	0.804 \| good	16.965 \| good	0.989 \| good
2026-01-22T16:00:00.000Z	62 \| moderate	15.068 \| fine	68.19 \| fine	1.368 \| good	0.772 \| good	16.463 \| good	1.258 \| good
2026-01-22T17:00:00.000Z	60 \| moderate	13.965 \| fine	62.727 \| fine	3.376 \| good	0.816 \| good	15.226 \| good	1.234 \| good
2026-01-22T18:00:00.000Z	62 \| moderate	14.875 \| fine	66.456 \| fine	5.193 \| good	0.945 \| good	20.803 \| good	1.351 \| good
2026-01-22T19:00:00.000Z	69 \| moderate	18.685 \| fine	83.136 \| fine	7.248 \| good	0.917 \| good	19.943 \| good	1.21 \| good
2026-01-22T20:00:00.000Z	73 \| moderate	20.917 \| fine	92.193 \| fine	7.385 \| good	1.073 \| good	21.977 \| good	0.982 \| good
2026-01-22T21:00:00.000Z	73 \| moderate	20.733 \| fine	90.899 \| fine	7.385 \| good	0.987 \| good	13.773 \| good	0.493 \| good
2026-01-22T22:00:00.000Z	66 \| moderate	17.399 \| fine	76.303 \| fine	7.443 \| good	0.803 \| good	13.74 \| good	0.379 \| good
2026-01-22T23:00:00.000Z	62 \| moderate	14.653 \| fine	64.818 \| fine	16.946 \| good	0.993 \| good	14.021 \| good	0.402 \| good
2026-01-23T00:00:00.000Z	58 \| moderate	12.669 \| fine	55.799 \| fine	17.108 \| good	0.918 \| good	13.882 \| good	0.4 \| good
2026-01-23T01:00:00.000Z	58 \| moderate	12.674 \| fine	56.934 \| fine	17.193 \| good	0.838 \| good	9.807 \| good	0.368 \| good
2026-01-23T02:00:00.000Z	56 \| moderate	12.086 \| good	54.382 \| good	17.144 \| good	1.484 \| good	11.235 \| good	0.425 \| good
2026-01-23T03:00:00.000Z	52 \| moderate	10.111 \| good	44.859 \| good	13.603 \| good	0.9 \| good	23.07 \| good	0.502 \| good
2026-01-23T04:00:00.000Z	54 \| moderate	11.213 \| good	49.847 \| good	11.989 \| good	0.705 \| good	27.739 \| good	0.594 \| good
2026-01-23T05:00:00.000Z	60 \| moderate	13.624 \| fine	60.762 \| fine	8.193 \| good	0.601 \| good	30.327 \| good	0.77 \| good
2026-01-23T06:00:00.000Z	58 \| moderate	12.836 \| fine	57.158 \| fine	12.023 \| good	0.514 \| good	21.553 \| good	0.748 \| good
2026-01-23T07:00:00.000Z	58 \| moderate	12.896 \| fine	58.22 \| fine	8.939 \| good	0.458 \| good	21.286 \| good	0.699 \| good
2026-01-23T08:00:00.000Z	58 \| moderate	12.684 \| fine	55.908 \| fine	4.098 \| good	0.455 \| good	23.086 \| good	0.795 \| good
2026-01-23T09:00:00.000Z	54 \| moderate	11.239 \| good	49.974 \| good	3.13 \| good	0.492 \| good	22.026 \| good	0.913 \| good
2026-01-23T10:00:00.000Z	60 \| moderate	13.545 \| fine	60.346 \| fine	4.108 \| good	0.524 \| good	20.047 \| good	0.789 \| good
2026-01-23T11:00:00.000Z	60 \| moderate	13.783 \| fine	62.523 \| fine	2.154 \| good	0.52 \| good	20.154 \| good	0.812 \| good
2026-01-23T12:00:00.000Z	58 \| moderate	12.719 \| fine	57.624 \| fine	2.176 \| good	0.385 \| good	19.172 \| good	0.737 \| good
2026-01-23T13:00:00.000Z	58 \| moderate	12.801 \| fine	57.634 \| fine	2.293 \| good	0.905 \| good	19.136 \| good	0.687 \| good
2026-01-23T14:00:00.000Z	60 \| moderate	14.454 \| fine	64.473 \| fine	1.308 \| good	0.836 \| good	16.392 \| good	0.494 \| good
2026-01-23T15:00:00.000Z	56 \| moderate	11.509 \| good	51.865 \| good	3.266 \| good	0.845 \| good	9.835 \| good	0.326 \| good
2026-01-23T16:00:00.000Z	56 \| moderate	11.977 \| good	53.973 \| good	4.304 \| good	0.736 \| good	10.265 \| good	0.4 \| good
2026-01-23T17:00:00.000Z	56 \| moderate	12.205 \| fine	55.439 \| fine	6.366 \| good	0.593 \| good	10.632 \| good	0.424 \| good
2026-01-23T18:00:00.000Z	62 \| moderate	15.222 \| fine	67.635 \| fine	8.067 \| good	0.635 \| good	10.127 \| good	0.42 \| good
2026-01-23T19:00:00.000Z	56 \| moderate	12.135 \| fine	54.974 \| good	11.972 \| good	0.774 \| good	9.407 \| good	0.399 \| good
2026-01-23T20:00:00.000Z	56 \| moderate	11.756 \| good	53.03 \| good	15.978 \| good	0.939 \| good	10.022 \| good	0.448 \| good
2026-01-23T21:00:00.000Z	56 \| moderate	11.626 \| good	52.919 \| good	18.016 \| good	0.772 \| good	9.881 \| good	0.379 \| good
2026-01-23T22:00:00.000Z	56 \| moderate	12.248 \| fine	54.739 \| good	18.005 \| good	0.693 \| good	11.548 \| good	0.453 \| good
2026-01-23T23:00:00.000Z	60 \| moderate	13.587 \| fine	60.429 \| fine	18.939 \| good	0.877 \| good	10.886 \| good	0.401 \| good
2026-01-24T00:00:00.000Z	64 \| moderate	15.668 \| fine	70.429 \| fine	17.046 \| good	0.868 \| good	13.045 \| good	0.473 \| good
2026-01-24T01:00:00.000Z	62 \| moderate	14.785 \| fine	66.934 \| fine	17.004 \| good	0.874 \| good	13.027 \| good	0.426 \| good
2026-01-23T23:00:00.000Z	79 \| moderate	23.742 \| fine	103.603 \| fine	34.279 \| good	2.533 \| good	8.668 \| good	0.217 \| good
2026-01-24T00:00:00.000Z	86 \| moderate	27.866 \| fine	121.181 \| fine	28.957 \| good	2.545 \| good	9.309 \| good	0.219 \| good
2026-01-24T01:00:00.000Z	75 \| moderate	22.46 \| fine	97.743 \| fine	20.286 \| good	2.587 \| good	14.301 \| good	0.254 \| good
2026-01-24T02:00:00.000Z	82 \| moderate	25.921 \| fine	113.059 \| fine	14.809 \| good	2.628 \| good	19.293 \| good	0.289 \| good
2026-01-24T03:00:00.000Z	86 \| moderate	27.981 \| fine	121.754 \| fine	8.224 \| good	2.669 \| good	24.285 \| good	0.324 \| good
2026-01-24T04:00:00.000Z	90 \| moderate	30.441 \| fine	132.721 \| fine	6.13 \| good	2.922 \| good	25.887 \| good	0.341 \| good
2026-01-24T05:00:00.000Z	88 \| moderate	28.996 \| fine	126.093 \| fine	5.557 \| good	3.175 \| good	27.49 \| good	0.358 \| good
2026-01-24T06:00:00.000Z	86 \| moderate	28.296 \| fine	122.76 \| fine	2.591 \| good	3.428 \| good	29.092 \| good	0.376 \| good
2026-01-24T07:00:00.000Z	86 \| moderate	27.862 \| fine	120.737 \| fine	3.118 \| good	3.361 \| good	28.468 \| good	0.375 \| good
2026-01-24T08:00:00.000Z	82 \| moderate	25.556 \| fine	111.729 \| fine	4.773 \| good	3.294 \| good	27.844 \| good	0.374 \| good
2026-01-24T09:00:00.000Z	77 \| moderate	23.167 \| fine	101.783 \| fine	5.083 \| good	3.227 \| good	27.22 \| good	0.373 \| good
2026-01-24T10:00:00.000Z	69 \| moderate	19.258 \| fine	85.253 \| fine	4.071 \| good	3.149 \| good	25.735 \| good	0.357 \| good
2026-01-24T11:00:00.000Z	67 \| moderate	18.326 \| fine	81.467 \| fine	7.789 \| good	3.071 \| good	24.25 \| good	0.342 \| good
2026-01-24T12:00:00.000Z	66 \| moderate	17.179 \| fine	75.86 \| fine	12.238 \| good	2.993 \| good	22.765 \| good	0.326 \| good
2026-01-24T13:00:00.000Z	60 \| moderate	13.789 \| fine	61.183 \| fine	3.205 \| good	2.904 \| good	22.081 \| good	0.314 \| good
2026-01-24T14:00:00.000Z	38 \| good	7.177 \| good	31.67 \| good	5.761 \| good	2.815 \| good	21.397 \| good	0.301 \| good
2026-01-24T15:00:00.000Z	54 \| moderate	10.804 \| good	48.171 \| good	5.045 \| good	2.725 \| good	20.714 \| good	0.289 \| good
2026-01-24T16:00:00.000Z	54 \| moderate	10.547 \| good	46.988 \| good	5.727 \| good	2.383 \| good	17.092 \| good	0.269 \| good
2026-01-24T17:00:00.000Z	44 \| good	7.949 \| good	34.657 \| good	16.288 \| good	2.04 \| good	13.47 \| good	0.25 \| good
2026-01-24T18:00:00.000Z	38 \| good	7.458 \| good	33.08 \| good	22.185 \| good	1.697 \| good	9.848 \| good	0.231 \| good
2026-01-24T19:00:00.000Z	24 \| good	2.36 \| good	9.831 \| good	25.892 \| good	1.471 \| good	8.086 \| good	0.206 \| good
2026-01-24T20:00:00.000Z	30 \| good	2.546 \| good	10.51 \| good	31.824 \| good	1.245 \| good	6.324 \| good	0.181 \| good
2026-01-24T21:00:00.000Z	28 \| good	0.64 \| good	2.491 \| good	29.859 \| good	1.019 \| good	4.562 \| good	0.157 \| good
2026-01-24T22:00:00.000Z	32 \| good	1.655 \| good	6.612 \| good	35.384 \| good	0.976 \| good	4.73 \| good	0.153 \| good
2026-01-24T23:00:00.000Z	30 \| good	0.737 \| good	2.862 \| good	32.285 \| good	0.932 \| good	4.897 \| good	0.15 \| good
2026-01-25T00:00:00.000Z	28 \| good	0.672 \| good	2.778 \| good	30.379 \| good	0.889 \| good	5.065 \| good	0.146 \| good
2026-01-25T01:00:00.000Z	21 \| good	0.904 \| good	3.358 \| good	23.376 \| good	0.977 \| good	11.02 \| good	0.183 \| good
2026-01-25T02:00:00.000Z	16 \| good	3.297 \| good	13.804 \| good	16.055 \| good	1.066 \| good	16.974 \| good	0.219 \| good
2026-01-25T03:00:00.000Z	33 \| good	5.585 \| good	24.511 \| good	12.523 \| good	1.154 \| good	22.929 \| good	0.255 \| good
2026-01-25T04:00:00.000Z	27 \| good	5.366 \| good	23.33 \| good	9.991 \| good	1.206 \| good	23.547 \| good	0.275 \| good
2026-01-25T05:00:00.000Z	27 \| good	4.88 \| good	21.423 \| good	10.257 \| good	1.258 \| good	24.165 \| good	0.295 \| good
2026-01-25T06:00:00.000Z	24 \| good	4.007 \| good	17.735 \| good	14.116 \| good	1.31 \| good	24.783 \| good	0.316 \| good
2026-01-25T07:00:00.000Z	23 \| good	2.553 \| good	10.623 \| good	17.081 \| good	1.177 \| good	23.564 \| good	0.314 \| good
2026-01-25T08:00:00.000Z	21 \| good	3.222 \| good	13.49 \| good	16.381 \| good	1.044 \| good	22.345 \| good	0.312 \| good
2026-01-25T09:00:00.000Z	20 \| good	3.415 \| good	14.965 \| good	12.03 \| good	0.911 \| good	21.126 \| good	0.31 \| good
2026-01-25T10:00:00.000Z	19 \| good	2.098 \| good	8.688 \| good	12.838 \| good	0.828 \| good	19.818 \| good	0.293 \| good
2026-01-25T11:00:00.000Z	18 \| good	3.313 \| good	14.682 \| good	10.893 \| good	0.745 \| good	18.509 \| good	0.277 \| good
2026-01-25T12:00:00.000Z	27 \| good	4.685 \| good	20.23 \| good	9.834 \| good	0.663 \| good	17.201 \| good	0.261 \| good
2026-01-25T13:00:00.000Z	22 \| good	4.079 \| good	17.948 \| good	12.085 \| good	0.713 \| good	17.421 \| good	0.249 \| good
2026-01-25T14:00:00.000Z	17 \| good	0.611 \| good	2.583 \| good	12.107 \| good	0.764 \| good	17.641 \| good	0.238 \| good
2026-01-25T15:00:00.000Z	17 \| good	2.962 \| good	12.165 \| good	9.328 \| good	0.814 \| good	17.861 \| good	0.227 \| good
2026-01-25T16:00:00.000Z	33 \| good	5.71 \| good	24.548 \| good	8.926 \| good	0.858 \| good	15.772 \| good	0.23 \| good
2026-01-25T17:00:00.000Z	49 \| good	9.216 \| good	41.286 \| good	10.258 \| good	0.901 \| good	13.683 \| good	0.234 \| good
2026-01-25T18:00:00.000Z	52 \| moderate	10.013 \| good	44.473 \| good	20.864 \| good	0.944 \| good	11.595 \| good	0.237 \| good
2026-01-25T19:00:00.000Z	44 \| good	7.876 \| good	34.61 \| good	30.668 \| good	1.005 \| good	9.493 \| good	0.221 \| good
2026-01-25T20:00:00.000Z	44 \| good	7.52 \| good	33.02 \| good	33.325 \| good	1.065 \| good	7.391 \| good	0.204 \| good
2026-01-25T21:00:00.000Z	33 \| good	2.822 \| good	11.767 \| good	36.199 \| good	1.125 \| good	5.289 \| good	0.187 \| good
2026-01-25T22:00:00.000Z	31 \| good	5.031 \| good	21.658 \| good	34.447 \| good	1.133 \| good	6.375 \| good	0.194 \| good

San Jose

Get reliable air quality data to drive your business

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

0.38ppm

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

Air quality levels in US

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

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

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 2026-01-22.

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 09:00:00 on 2026-01-23.

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

As of now, the AQI in San Jose, California is 52, 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 9.969 μg/m³.

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

The PM₁₀ concentration in San Jose, California is 45.081 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 0.326 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 0.775 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 17.98 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 8.015 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-01-22T02:00:00.000Z	66 \| moderate	16.574 \| fine	73.335 \| fine	7.549 \| good	0.75 \| good	25.233 \| good	0.821 \| good
2026-01-22T03:00:00.000Z	66 \| moderate	16.948 \| fine	74.518 \| fine	4.161 \| good	0.723 \| good	28.173 \| good	0.921 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	17.043 \| fine	75.979 \| fine	3.143 \| good	0.761 \| good	25.849 \| good	0.846 \| good
2026-01-22T05:00:00.000Z	69 \| moderate	18.84 \| fine	83.666 \| fine	1.176 \| good	0.762 \| good	25.387 \| good	0.895 \| good
2026-01-22T06:00:00.000Z	69 \| moderate	19.074 \| fine	83.798 \| fine	1.125 \| good	0.828 \| good	26.204 \| good	0.92 \| good
2026-01-22T07:00:00.000Z	67 \| moderate	17.7 \| fine	78.952 \| fine	1.147 \| good	0.864 \| good	24.332 \| good	1.018 \| good
2026-01-22T08:00:00.000Z	71 \| moderate	19.89 \| fine	87.992 \| fine	1.156 \| good	0.956 \| good	24.151 \| good	1.069 \| good
2026-01-22T09:00:00.000Z	66 \| moderate	17.384 \| fine	77.316 \| fine	1.172 \| good	0.867 \| good	23.149 \| good	1.016 \| good
2026-01-22T10:00:00.000Z	69 \| moderate	18.812 \| fine	82.611 \| fine	3.518 \| good	0.863 \| good	22.618 \| good	1.112 \| good
2026-01-22T11:00:00.000Z	67 \| moderate	18.295 \| fine	80.567 \| fine	1.164 \| good	0.833 \| good	20.437 \| good	0.964 \| good
2026-01-22T12:00:00.000Z	60 \| moderate	14.185 \| fine	63.189 \| fine	1.478 \| good	0.82 \| good	19.423 \| good	0.89 \| good
2026-01-22T13:00:00.000Z	58 \| moderate	12.964 \| fine	58.101 \| fine	1.484 \| good	0.808 \| good	18.356 \| good	0.889 \| good
2026-01-22T14:00:00.000Z	60 \| moderate	14.304 \| fine	63.94 \| fine	2.01 \| good	0.782 \| good	15.565 \| good	0.82 \| good
2026-01-22T15:00:00.000Z	60 \| moderate	13.868 \| fine	62.704 \| fine	1.375 \| good	0.804 \| good	16.965 \| good	0.989 \| good
2026-01-22T16:00:00.000Z	62 \| moderate	15.068 \| fine	68.19 \| fine	1.368 \| good	0.772 \| good	16.463 \| good	1.258 \| good
2026-01-22T17:00:00.000Z	60 \| moderate	13.965 \| fine	62.727 \| fine	3.376 \| good	0.816 \| good	15.226 \| good	1.234 \| good
2026-01-22T18:00:00.000Z	62 \| moderate	14.875 \| fine	66.456 \| fine	5.193 \| good	0.945 \| good	20.803 \| good	1.351 \| good
2026-01-22T19:00:00.000Z	69 \| moderate	18.685 \| fine	83.136 \| fine	7.248 \| good	0.917 \| good	19.943 \| good	1.21 \| good
2026-01-22T20:00:00.000Z	73 \| moderate	20.917 \| fine	92.193 \| fine	7.385 \| good	1.073 \| good	21.977 \| good	0.982 \| good
2026-01-22T21:00:00.000Z	73 \| moderate	20.733 \| fine	90.899 \| fine	7.385 \| good	0.987 \| good	13.773 \| good	0.493 \| good
2026-01-22T22:00:00.000Z	66 \| moderate	17.399 \| fine	76.303 \| fine	7.443 \| good	0.803 \| good	13.74 \| good	0.379 \| good
2026-01-22T23:00:00.000Z	62 \| moderate	14.653 \| fine	64.818 \| fine	16.946 \| good	0.993 \| good	14.021 \| good	0.402 \| good
2026-01-23T00:00:00.000Z	58 \| moderate	12.669 \| fine	55.799 \| fine	17.108 \| good	0.918 \| good	13.882 \| good	0.4 \| good
2026-01-23T01:00:00.000Z	58 \| moderate	12.674 \| fine	56.934 \| fine	17.193 \| good	0.838 \| good	9.807 \| good	0.368 \| good
2026-01-23T02:00:00.000Z	56 \| moderate	12.086 \| good	54.382 \| good	17.144 \| good	1.484 \| good	11.235 \| good	0.425 \| good
2026-01-23T03:00:00.000Z	52 \| moderate	10.111 \| good	44.859 \| good	13.603 \| good	0.9 \| good	23.07 \| good	0.502 \| good
2026-01-23T04:00:00.000Z	54 \| moderate	11.213 \| good	49.847 \| good	11.989 \| good	0.705 \| good	27.739 \| good	0.594 \| good
2026-01-23T05:00:00.000Z	60 \| moderate	13.624 \| fine	60.762 \| fine	8.193 \| good	0.601 \| good	30.327 \| good	0.77 \| good
2026-01-23T06:00:00.000Z	58 \| moderate	12.836 \| fine	57.158 \| fine	12.023 \| good	0.514 \| good	21.553 \| good	0.748 \| good
2026-01-23T07:00:00.000Z	58 \| moderate	12.896 \| fine	58.22 \| fine	8.939 \| good	0.458 \| good	21.286 \| good	0.699 \| good
2026-01-23T08:00:00.000Z	58 \| moderate	12.684 \| fine	55.908 \| fine	4.098 \| good	0.455 \| good	23.086 \| good	0.795 \| good
2026-01-23T09:00:00.000Z	54 \| moderate	11.239 \| good	49.974 \| good	3.13 \| good	0.492 \| good	22.026 \| good	0.913 \| good
2026-01-23T10:00:00.000Z	60 \| moderate	13.545 \| fine	60.346 \| fine	4.108 \| good	0.524 \| good	20.047 \| good	0.789 \| good
2026-01-23T11:00:00.000Z	60 \| moderate	13.783 \| fine	62.523 \| fine	2.154 \| good	0.52 \| good	20.154 \| good	0.812 \| good
2026-01-23T12:00:00.000Z	58 \| moderate	12.719 \| fine	57.624 \| fine	2.176 \| good	0.385 \| good	19.172 \| good	0.737 \| good
2026-01-23T13:00:00.000Z	58 \| moderate	12.801 \| fine	57.634 \| fine	2.293 \| good	0.905 \| good	19.136 \| good	0.687 \| good
2026-01-23T14:00:00.000Z	60 \| moderate	14.454 \| fine	64.473 \| fine	1.308 \| good	0.836 \| good	16.392 \| good	0.494 \| good
2026-01-23T15:00:00.000Z	56 \| moderate	11.509 \| good	51.865 \| good	3.266 \| good	0.845 \| good	9.835 \| good	0.326 \| good
2026-01-23T16:00:00.000Z	56 \| moderate	11.977 \| good	53.973 \| good	4.304 \| good	0.736 \| good	10.265 \| good	0.4 \| good
2026-01-23T17:00:00.000Z	56 \| moderate	12.205 \| fine	55.439 \| fine	6.366 \| good	0.593 \| good	10.632 \| good	0.424 \| good
2026-01-23T18:00:00.000Z	62 \| moderate	15.222 \| fine	67.635 \| fine	8.067 \| good	0.635 \| good	10.127 \| good	0.42 \| good
2026-01-23T19:00:00.000Z	56 \| moderate	12.135 \| fine	54.974 \| good	11.972 \| good	0.774 \| good	9.407 \| good	0.399 \| good
2026-01-23T20:00:00.000Z	56 \| moderate	11.756 \| good	53.03 \| good	15.978 \| good	0.939 \| good	10.022 \| good	0.448 \| good
2026-01-23T21:00:00.000Z	56 \| moderate	11.626 \| good	52.919 \| good	18.016 \| good	0.772 \| good	9.881 \| good	0.379 \| good
2026-01-23T22:00:00.000Z	56 \| moderate	12.248 \| fine	54.739 \| good	18.005 \| good	0.693 \| good	11.548 \| good	0.453 \| good
2026-01-23T23:00:00.000Z	60 \| moderate	13.587 \| fine	60.429 \| fine	18.939 \| good	0.877 \| good	10.886 \| good	0.401 \| good
2026-01-24T00:00:00.000Z	64 \| moderate	15.668 \| fine	70.429 \| fine	17.046 \| good	0.868 \| good	13.045 \| good	0.473 \| good
2026-01-24T01:00:00.000Z	62 \| moderate	14.785 \| fine	66.934 \| fine	17.004 \| good	0.874 \| good	13.027 \| good	0.426 \| good
2026-01-23T23:00:00.000Z	79 \| moderate	23.742 \| fine	103.603 \| fine	34.279 \| good	2.533 \| good	8.668 \| good	0.217 \| good
2026-01-24T00:00:00.000Z	86 \| moderate	27.866 \| fine	121.181 \| fine	28.957 \| good	2.545 \| good	9.309 \| good	0.219 \| good
2026-01-24T01:00:00.000Z	75 \| moderate	22.46 \| fine	97.743 \| fine	20.286 \| good	2.587 \| good	14.301 \| good	0.254 \| good
2026-01-24T02:00:00.000Z	82 \| moderate	25.921 \| fine	113.059 \| fine	14.809 \| good	2.628 \| good	19.293 \| good	0.289 \| good
2026-01-24T03:00:00.000Z	86 \| moderate	27.981 \| fine	121.754 \| fine	8.224 \| good	2.669 \| good	24.285 \| good	0.324 \| good
2026-01-24T04:00:00.000Z	90 \| moderate	30.441 \| fine	132.721 \| fine	6.13 \| good	2.922 \| good	25.887 \| good	0.341 \| good
2026-01-24T05:00:00.000Z	88 \| moderate	28.996 \| fine	126.093 \| fine	5.557 \| good	3.175 \| good	27.49 \| good	0.358 \| good
2026-01-24T06:00:00.000Z	86 \| moderate	28.296 \| fine	122.76 \| fine	2.591 \| good	3.428 \| good	29.092 \| good	0.376 \| good
2026-01-24T07:00:00.000Z	86 \| moderate	27.862 \| fine	120.737 \| fine	3.118 \| good	3.361 \| good	28.468 \| good	0.375 \| good
2026-01-24T08:00:00.000Z	82 \| moderate	25.556 \| fine	111.729 \| fine	4.773 \| good	3.294 \| good	27.844 \| good	0.374 \| good
2026-01-24T09:00:00.000Z	77 \| moderate	23.167 \| fine	101.783 \| fine	5.083 \| good	3.227 \| good	27.22 \| good	0.373 \| good
2026-01-24T10:00:00.000Z	69 \| moderate	19.258 \| fine	85.253 \| fine	4.071 \| good	3.149 \| good	25.735 \| good	0.357 \| good
2026-01-24T11:00:00.000Z	67 \| moderate	18.326 \| fine	81.467 \| fine	7.789 \| good	3.071 \| good	24.25 \| good	0.342 \| good
2026-01-24T12:00:00.000Z	66 \| moderate	17.179 \| fine	75.86 \| fine	12.238 \| good	2.993 \| good	22.765 \| good	0.326 \| good
2026-01-24T13:00:00.000Z	60 \| moderate	13.789 \| fine	61.183 \| fine	3.205 \| good	2.904 \| good	22.081 \| good	0.314 \| good
2026-01-24T14:00:00.000Z	38 \| good	7.177 \| good	31.67 \| good	5.761 \| good	2.815 \| good	21.397 \| good	0.301 \| good
2026-01-24T15:00:00.000Z	54 \| moderate	10.804 \| good	48.171 \| good	5.045 \| good	2.725 \| good	20.714 \| good	0.289 \| good
2026-01-24T16:00:00.000Z	54 \| moderate	10.547 \| good	46.988 \| good	5.727 \| good	2.383 \| good	17.092 \| good	0.269 \| good
2026-01-24T17:00:00.000Z	44 \| good	7.949 \| good	34.657 \| good	16.288 \| good	2.04 \| good	13.47 \| good	0.25 \| good
2026-01-24T18:00:00.000Z	38 \| good	7.458 \| good	33.08 \| good	22.185 \| good	1.697 \| good	9.848 \| good	0.231 \| good
2026-01-24T19:00:00.000Z	24 \| good	2.36 \| good	9.831 \| good	25.892 \| good	1.471 \| good	8.086 \| good	0.206 \| good
2026-01-24T20:00:00.000Z	30 \| good	2.546 \| good	10.51 \| good	31.824 \| good	1.245 \| good	6.324 \| good	0.181 \| good
2026-01-24T21:00:00.000Z	28 \| good	0.64 \| good	2.491 \| good	29.859 \| good	1.019 \| good	4.562 \| good	0.157 \| good
2026-01-24T22:00:00.000Z	32 \| good	1.655 \| good	6.612 \| good	35.384 \| good	0.976 \| good	4.73 \| good	0.153 \| good
2026-01-24T23:00:00.000Z	30 \| good	0.737 \| good	2.862 \| good	32.285 \| good	0.932 \| good	4.897 \| good	0.15 \| good
2026-01-25T00:00:00.000Z	28 \| good	0.672 \| good	2.778 \| good	30.379 \| good	0.889 \| good	5.065 \| good	0.146 \| good
2026-01-25T01:00:00.000Z	21 \| good	0.904 \| good	3.358 \| good	23.376 \| good	0.977 \| good	11.02 \| good	0.183 \| good
2026-01-25T02:00:00.000Z	16 \| good	3.297 \| good	13.804 \| good	16.055 \| good	1.066 \| good	16.974 \| good	0.219 \| good
2026-01-25T03:00:00.000Z	33 \| good	5.585 \| good	24.511 \| good	12.523 \| good	1.154 \| good	22.929 \| good	0.255 \| good
2026-01-25T04:00:00.000Z	27 \| good	5.366 \| good	23.33 \| good	9.991 \| good	1.206 \| good	23.547 \| good	0.275 \| good
2026-01-25T05:00:00.000Z	27 \| good	4.88 \| good	21.423 \| good	10.257 \| good	1.258 \| good	24.165 \| good	0.295 \| good
2026-01-25T06:00:00.000Z	24 \| good	4.007 \| good	17.735 \| good	14.116 \| good	1.31 \| good	24.783 \| good	0.316 \| good
2026-01-25T07:00:00.000Z	23 \| good	2.553 \| good	10.623 \| good	17.081 \| good	1.177 \| good	23.564 \| good	0.314 \| good
2026-01-25T08:00:00.000Z	21 \| good	3.222 \| good	13.49 \| good	16.381 \| good	1.044 \| good	22.345 \| good	0.312 \| good
2026-01-25T09:00:00.000Z	20 \| good	3.415 \| good	14.965 \| good	12.03 \| good	0.911 \| good	21.126 \| good	0.31 \| good
2026-01-25T10:00:00.000Z	19 \| good	2.098 \| good	8.688 \| good	12.838 \| good	0.828 \| good	19.818 \| good	0.293 \| good
2026-01-25T11:00:00.000Z	18 \| good	3.313 \| good	14.682 \| good	10.893 \| good	0.745 \| good	18.509 \| good	0.277 \| good
2026-01-25T12:00:00.000Z	27 \| good	4.685 \| good	20.23 \| good	9.834 \| good	0.663 \| good	17.201 \| good	0.261 \| good
2026-01-25T13:00:00.000Z	22 \| good	4.079 \| good	17.948 \| good	12.085 \| good	0.713 \| good	17.421 \| good	0.249 \| good
2026-01-25T14:00:00.000Z	17 \| good	0.611 \| good	2.583 \| good	12.107 \| good	0.764 \| good	17.641 \| good	0.238 \| good
2026-01-25T15:00:00.000Z	17 \| good	2.962 \| good	12.165 \| good	9.328 \| good	0.814 \| good	17.861 \| good	0.227 \| good
2026-01-25T16:00:00.000Z	33 \| good	5.71 \| good	24.548 \| good	8.926 \| good	0.858 \| good	15.772 \| good	0.23 \| good
2026-01-25T17:00:00.000Z	49 \| good	9.216 \| good	41.286 \| good	10.258 \| good	0.901 \| good	13.683 \| good	0.234 \| good
2026-01-25T18:00:00.000Z	52 \| moderate	10.013 \| good	44.473 \| good	20.864 \| good	0.944 \| good	11.595 \| good	0.237 \| good
2026-01-25T19:00:00.000Z	44 \| good	7.876 \| good	34.61 \| good	30.668 \| good	1.005 \| good	9.493 \| good	0.221 \| good
2026-01-25T20:00:00.000Z	44 \| good	7.52 \| good	33.02 \| good	33.325 \| good	1.065 \| good	7.391 \| good	0.204 \| good
2026-01-25T21:00:00.000Z	33 \| good	2.822 \| good	11.767 \| good	36.199 \| good	1.125 \| good	5.289 \| good	0.187 \| good
2026-01-25T22:00:00.000Z	31 \| good	5.031 \| good	21.658 \| good	34.447 \| good	1.133 \| good	6.375 \| good	0.194 \| 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)

Track live San Jose, California air quality forecast and history

Get reliable air quality data to drive your business

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

Milpitas, California

Cupertino, California

Los Gatos, California

How accurate is California, USA air quality data?

Air quality levels in US

Frequently asked questions

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

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

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

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

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

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

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

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

What is the carbon monoxide (CO) 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?

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?