What is the air quality in San Francisco today?

The current Air Quality Index (AQI) in San Francisco is 51 (Moderate). PM2.5 concentration is 12.17 µg/m³.

What is the temperature in San Francisco right now?

The current temperature in San Francisco is 28.8°C (feels like 30.1°C). Humidity is 41.4% and wind speed is 21.8 km/h.

Air Quality in San Francisco, SV

Clear

28.8°C · 41.4% humidity

28.8°

Feels 30.1°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

37 10pm

75 1am

75 4am

75 7am

75 10am

75 1pm

25 4pm

25 7pm

Station readings 30h ago

AQI 38

PM2.5 9.0 µg/m³ · 30h ago

41.4%

Humidity

21.8 km/h

Wind NNE

1006.9 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for San Francisco?

Temperature & Precipitation

PM2.512.17 µg/m³ ✓ WHO

Moderate

PM1020.55 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for San Francisco?

04-10

35.1° 20.2°

04-11

36.7° 20.7°

04-12

36.6° 19.9°

04-13

36.1° 22.0°

04-14

35.5° 23.5°

04-15

34.8° 22.8°

4.5 mm

04-16

34.3° 23.0°

2.94 mm

Both models agree Avg diff: 2.0°C

Where are air quality stations near San Francisco?

el-salvador-san-miguel-pan-american-highway

24.4 km PM2.5: 9.0 µg/m³ PM10: 10.0 µg/m³

What cities are near San Francisco?

54 San Miguel 57 San Rafael Oriente 81 Santiago de María 51 La Unión 57 Usulután 45 Sensuntepeque 57 Puerto El Triunfo 66 San Vicente 38 San Lorenzo 38 La Paz

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T01:57 UTC.