What is the air quality in South San Francisco today?

The current Air Quality Index (AQI) in South San Francisco is 17 (Good). PM2.5 concentration is 4.04 µg/m³.

What is the temperature in South San Francisco right now?

The current temperature in South 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 South San Francisco?

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

Air Quality in South San Francisco, United States

Windy

15.2°C · 71.7% humidity

15.2°

Feels 15.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

74 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

19 3pm

12 6pm

12 9pm

12 12am

12 3am

12 6am

24 9am

37 12pm

Station readings

CAMS model adj -13

PM2.5 Trend (24h)

25h · 106 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 South San Francisco?

Temperature & Precipitation

PM2.54.04 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX4.4

Moderate

Station readings (74 stations within 25 km)

4.04

Median

3.9

Average

1.62

Low

7.16

High

PM2.5 µg/m³ · Model: 7.4 · Bias: +3.4

What is the 7-day forecast for South 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: 1.4°C

Where are air quality stations near South San Francisco?

California and Cypress Ave

0.4 km PM2.5: 2.4 µg/m³

Rise South City Office

0.4 km PM2.5: 3.9 µg/m³

Cypress and Pine Playlot

0.5 km PM2.5: 3.5 µg/m³

California and Hawthorn Pl

0.5 km PM2.5: 2.4 µg/m³

Grand and Magnolia St

1.0 km PM2.5: 2.1 µg/m³

Gardiner Park

1.2 km PM2.5: 2.0 µg/m³

Orange Memorial Park

1.6 km PM2.5: 1.8 µg/m³

Brentwood Park

2.9 km PM2.5: 2.2 µg/m³

Buri Buri Park

2.9 km PM2.5: 2.0 µg/m³

Belle Air School

3.4 km PM2.5: 7.4 µg/m³

What cities are near South San Francisco?

15 San Bruno 12 Millbrae 18 Visitacion Valley 15 Daly City 11 Pacifica 18 Bayview-Hunters Point 12 Burlingame 18 Noe Valley 18 Mission District 15 Parkside

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:53 UTC.