Air Quality in San Diego, United States
Windy
18.8°C · 78.1% humidity
18.8°
Feels 18.8°
66
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
4 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
55
2pm
60
26
27
5pm
27
27
27
8pm
27
27
27
11pm
27
27
27
2am
27
27
27
5am
52
52
52
8am
52
52
52
11am
52
52
Station readings
55
60
26
CAMS model
adj -23
75
75
75
50
50
50
50
50
50
50
50
50
50
50
50
50
75
75
75
75
75
75
75
75
PM2.5 Trend (24h)
27h · 1 station78.1%
Humidity
43.8 km/h
Wind W
1014.2 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for San Diego?
Temperature & Precipitation
PM2.519.18 µg/m³
×1.3 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
Station readings (4 stations within 25 km)
19.18
Median
18.39
Average
14.06
Low
21.16
High
PM2.5 µg/m³ · Model: 4.4 · Bias: -14.8
What is the 7-day forecast for San Diego?
04-09
19.3° 17.6°
04-10
18.3° 16.8°
9.25 mm
04-11
17.2° 15.4°
24.12 mm
04-12
16.8° 14.2°
2.19 mm
04-13
15.1° 14.8°
0.5 mm
04-14
18.5° 15.1°
0.06 mm
04-15
19.8° 17.5°
Both models agree
Avg diff: 1.4°C
Where are air quality stations near San Diego?
80
San Diego - Sherman Elementary School, San Diego, California
58
CRSF (EHS Bldg)
73
Smythe Avenue
69
Ocean View Hills
34
El Cajon-Redwood Avenue, San Diego, California
33
El Cajon-Redwood Avenue, San Diego, California
70
International Border
89
Otay Mesa - Donovan Correctional Facility, San Diego, California
63
La Mesa
What cities are near San Diego?
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T17:00 UTC.