Air Quality in San Francisco, El Salvador
Drizzle
20.5°C · 95.9% humidity
20.5°
Feels 20.5°
4
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
San Francisco's air quality — share it
AQI Forecast
Calibrated
7
12am
7
5
4
3am
7
7
7
6am
14
7
7
9am
7
7
7
12pm
7
7
7
3pm
5
5
7
6pm
7
5
7
9pm
7
7
Station readings
6
1
7
CAMS model
adj -20
27
27
25
25
27
27
27
34
27
27
27
27
27
27
27
27
25
25
27
27
25
27
27
27
Air Quality Index Trend
23h · 1 stnSan Francisco's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.
95.9%
Humidity
14.0 km/h
Wind NNW
1011.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
0.98 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for San Francisco?
Temperature & Precipitation
PM2.5 Trend
23h · 1 stationPM2.50.98 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
0.98
Median
0.98
Average
0.98
Low
0.98
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +6.1
What is the 7-day forecast for San Francisco?
06-09
33.8° 20.5°
12.69 mm
06-10
29.8° 21.4°
14.19 mm
06-11
25.7° 21.3°
5.75 mm
06-12
21.9° 20.8°
14.31 mm
06-13
28.8° 20.5°
37.44 mm
06-14
27.8° 19.3°
11.06 mm
06-15
31.0° 20.8°
30.19 mm
Both models agree
Avg diff: 3.0°C
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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 2026-06-09T09:49 UTC.