Worst air pollution Rose Garden San Jose - San Jose, today and tomorrow
Today (15 July): Air quality in Rose Garden San Jose is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 45.8/100).
Tomorrow (16 July 2026): Air quality in Rose Garden San Jose is fair. PM2.5 increases to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 9:00 AM (O3: 44.7/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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San Jose's Rose Garden air quality reflects the historic residential neighbourhood, with vehicle traffic on Naglee Avenue and the surrounding tree-lined residential character contributing modest local sources. The neighbourhood's exceptional tree canopy provides natural filtration, while the Bay Delta breeze provides afternoon ventilation and Rose Garden generally maintains among San Jose's more pleasant inner residential environments throughout most of the year.
Today - 15 July | Pollution peaks at 09:00
AQI:
Medium
45.8/100
PM2.5 (fine particles):
Good
17.7/100
PM10 (coarse particles):
Good
11.1/100
NO2 (nitrogen dioxide):
Good
15.4/100
O3 (ozone):
Medium
45.8/100
SO2 (sulfur dioxide):
Good
4.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.6/100
PM1 (ultrafine particles):
Good
10.8/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 09:00
AQI:
Medium
44.7/100
PM2.5 (fine particles):
Fair
22.6/100
PM10 (coarse particles):
Good
11.5/100
NO2 (nitrogen dioxide):
Fair
24.0/100
O3 (ozone):
Medium
44.7/100
SO2 (sulfur dioxide):
Good
4.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
14.7/100
Other Landmarks in San Jose
Sports venues in San Jose
Frequently Asked Questions
Is air quality bad in Rose Garden San Jose right now?
On 15 July 2026, overall air quality in Rose Garden San Jose is medium. AQI is the main air quality indicator at 45.8/100. Pollution peaks around 9:00 AM (O3: 45.8/100).
Will air quality be worse tomorrow in Rose Garden San Jose?
On 16 July 2026, air quality conditions in Rose Garden San Jose will be worse than today, with NO2 forecast at fair at 24.0/100. Pollution peaks around 9:00 AM (O3: 44.7/100).
When is air pollution at its worst in Rose Garden San Jose?
Air quality at Rose Garden San Jose shifts across the year. In short, the rainy winter months generally bring the cleanest air, as storms clear traffic and woodsmoke pollution, whereas the long dry stretch from midsummer into autumn brings both ozone and wildfire smoke risk. Wine country and inland valley locations tend to see more smoke buildup than the immediate coast.
Are air quality levels in Rose Garden San Jose based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app