What is the air quality in San Francisco today?

The current Air Quality Index (AQI) in San Francisco is 18 (Good). PM2.5 concentration is 4.42 µg/m³.

What is the temperature in San Francisco right now?

The current temperature in San Francisco is 15.2°C (feels like 15.2°C). Humidity is 71.7% and wind speed is 43.5 km/h.

Is it safe to go outside in San Francisco?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0 (Moderate).

Air Quality in San Francisco, United States

Windy

15.2°C · 71.7% humidity

15.2°

Feels 15.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

95 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

18 2pm

24 5pm

12 8pm

12 11pm

12 2am

12 5am

24 8am

24 11am

Station readings

CAMS model adj -13

PM2.5 Trend (24h)

26h · 102 stations

71.7%

Humidity

43.5 km/h

Wind WSW

1012.0 hPa

Pressure

4.4

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for San Francisco?

Temperature & Precipitation

PM2.54.42 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX4.4

Moderate

Station readings (95 stations within 25 km)

4.42

Median

4.26

Average

1.5

Low

9.7

High

PM2.5 µg/m³ · Model: 7.4 · Bias: +3.0

What is the 7-day forecast for San Francisco?

04-09

16.4° 13.9°

0.19 mm

04-10

14.9° 12.3°

0.06 mm

04-11

13.6° 10.5°

04-12

12.2° 10.5°

1.44 mm

04-13

12.4° 9.0°

04-14

13.9° 10.1°

04-15

15.6° 11.6°

Both models agree Avg diff: 1.1°C

Where are air quality stations near San Francisco?

Howard St. & 6th St. (BC)

1.1 km PM2.5: 2.6 µg/m³

Eddy St. & Jones St. (BC)

1.2 km PM2.5: 2.9 µg/m³

9th St. and Brannan St. (BC)

1.3 km PM2.5: 2.8 µg/m³

San Francisco-Arkansas Street, San Francisco, California

2.1 km

UCSF Mount Zion

2.1 km PM2.5: 1.6 µg/m³

Broadway St. & Stockton St. (BC)

2.6 km PM2.5: 2.9 µg/m³

UCSF Mission Bay

2.9 km PM2.5: 2.1 µg/m³

UCSF Parnassus

3.8 km PM2.5: 2.7 µg/m³

ATB Jerrold Ave. San Francisco, Ca 94124

5.0 km PM2.5: 2.5 µg/m³

Oakdale Ave. & 3rd St. (BC)

5.2 km PM2.5: 2.8 µg/m³

What cities are near San Francisco?

18 Mission District 18 Noe Valley 19 Bayview-Hunters Point 19 Visitacion Valley 15 Parkside 16 Daly City 18 South San Francisco 20 Oakland 20 Alameda 16 San Bruno

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T17:37 UTC.