Air Quality in La Unión, El Salvador
Drizzle
24.4°C · 80.5% humidity
24.4°
Feels 24.4°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
La Unión's air quality — share it
AQI Forecast
34
12am
27
27
37
3am
34
33
31
6am
37
36
29
9am
28
28
28
12pm
27
27
27
3pm
27
27
27
6pm
54
54
34
9pm
34
34
Air Quality Index Trend
21h · 1 stnLa Unión's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.
80.5%
Humidity
38.9 km/h
Wind NNE
1011.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
8.85 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for La Unión?
Temperature & Precipitation
PM2.5 Trend
21h · 1 stationPM2.58.85 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for La Unión?
07-22
30.0° 24.4°
6.31 mm
07-23
31.2° 24.9°
5.69 mm
07-24
30.9° 24.1°
2.75 mm
07-25
31.2° 24.3°
2.69 mm
07-26
30.4° 24.5°
0.38 mm
07-27
28.2° 23.7°
3.44 mm
07-28
31.1° 24.6°
7.13 mm
Both models agree
Avg diff: 3.5°C
What cities are near La Unión?
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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 2026-07-22T09:33 UTC.