What is the air quality in San Ramon today?

The current Air Quality Index (AQI) in San Ramon is 18 (Good). PM2.5 concentration is 4.21 µg/m³.

What is the temperature in San Ramon right now?

The current temperature in San Ramon is 24.9°C (feels like 24.9°C). Humidity is 26.2% and wind speed is 18.0 km/h.

Is it safe to go outside in San Ramon?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in San Ramon, United States

Clear

24.9°C · 26.2% humidity

24.9°

Feels 24.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

46 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 102 stn

View full history →

San Ramon's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

26.2%

Humidity

18.0 km/h

Wind WSW

1018.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.21 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for San Ramon?

Temperature & Precipitation

PM2.5 Trend

45h · 102 stations

PM2.54.21 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (46 stations within 25 km)

4.21

Median

4.29

Average

2.76

Low

6.77

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +1.8

What is the 7-day forecast for San Ramon?

10-20

26.0° 11.4°

10-21

25.9° 12.4°

10-22

29.9° 12.7°

10-23

23.5° 13.0°

10-24

26.2° 11.7°

10-25

25.3° 12.0°

1.5 mm

10-26

25.0° 12.2°

Both models agree Avg diff: 5.3°C

Where are air quality stations near San Ramon?

Berkeley-Dublin

11.4 km PM2.5: 3.4 µg/m³

Grass Valley ES

13.3 km PM2.5: 4.0 µg/m³

Oakland Academy of Knowledge (OAK) ES

15.5 km PM2.5: 4.3 µg/m³

Skyline HS

16.1 km PM2.5: 3.2 µg/m³

Castlemont High School

16.5 km PM2.5: 3.8 µg/m³

Reach Academy ES

16.6 km PM2.5: 3.0 µg/m³

Burckhalter ES

16.6 km PM2.5: 3.9 µg/m³

Elmhurst United MS

17.0 km PM2.5: 3.8 µg/m³

Oakland - East, Alameda, California

17.4 km PM2.5: 6.0 µg/m³

East Oakland Pride ES

17.5 km PM2.5: 4.7 µg/m³

What cities are near San Ramon?

18 Castro Valley 18 Moraga 18 Hayward 14 Pleasanton 18 Walnut Creek 19 San Leandro 18 San Lorenzo 17 Pleasant Hill 18 Orinda 14 Livermore

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-20T20:05 UTC.