Air Quality in Santa Ana, United States

Partly Cloudy
17.8°C · 67.0% humidity
17.8°
Feels 17.8°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
34 4am
34
54
14 7am
25
33
39 10am
43
46
49 1pm
30
24
25 4pm
26
26
26 7pm
26
27
27 10pm
27
27
27 1am
27
27
AD 728×90

Air Quality Index Trend

47h · 2 stn

Santa 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.

67.0%
Humidity
19.2 km/h
Wind SSE
1011.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
14
3.27 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Santa Ana?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.53.27 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (5 stations within 25 km)
3.27
Median
3.34
Average
3.0
Low
3.7
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +6.7

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: 1.6°C

Where are air quality stations near Santa Ana?

12
Davis Elementary
1.4 km PM2.5: 3.0 µg/m³
14
Villa Intermediate
1.8 km PM2.5: 3.3 µg/m³
15
Kennedy Elementary
1.9 km PM2.5: 3.7 µg/m³
14
Century High School
2.4 km PM2.5: 3.3 µg/m³
14
Monroe Elementary
3.5 km PM2.5: 3.4 µg/m³

What cities are near Santa Ana?

14 Tustin 14 Tustin Legacy 14 North Tustin 14 Garden Grove 14 Westpark 14 Fountain Valley 14 Irvine 14 El Camino Real 14 Woodbridge 14 Northwood
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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 2026-05-29T14:54 UTC.