Air Quality in La Unión, El Salvador
Drizzle
24.4°C · 80.5% humidity
24.4°
Feels 24.4°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
La Unión's air quality — share it
AQI Forecast
27
1am
27
25
35
4am
34
32
38
7am
37
29
28
10am
28
28
27
1pm
27
27
27
4pm
27
27
54
7pm
54
34
34
10pm
34
34
Air Quality Index Trend
22h · 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▲
8.27 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for La Unión?
Temperature & Precipitation
PM2.5 Trend
22h · 1 stationPM2.58.27 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 2026-07-22T10:34 UTC.