Air Quality in Santa Ana, United States
Windy
24.9°C · 45.2% humidity
24.9°
Feels 24.9°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
AQI Forecast
54
2pm
34
34
30
5pm
27
34
34
8pm
34
34
34
11pm
34
34
34
2am
34
34
34
5am
54
54
54
8am
54
54
54
11am
54
54
Air Quality Index Trend
48h · 2 stnSanta Ana's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Santa Ana is 1.4× the WHO annual guideline of 5 µg/m³.
45.2%
Humidity
52.3 km/h
Wind SW
1011.9 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.1 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Santa Ana?
Temperature & Precipitation
PM2.5 Trend
48h · 2 stationsPM2.57.1 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX5.9
High
What is the 7-day forecast for Santa Ana?
05-29
24.9° 17.8°
05-30
20.5° 16.6°
05-31
23.2° 18.6°
06-01
23.1° 18.2°
06-02
24.1° 16.0°
06-03
22.8° 16.3°
06-04
22.0° 17.4°
Both models agree
Avg diff: 1.8°C
Where are air quality stations near Santa Ana?
12
Davis Elementary
16
Villa Intermediate
16
Kennedy Elementary
17
Century High School
15
Monroe Elementary
What cities are near Santa Ana?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T00:26 UTC.