Air Quality in La Unión, El Salvador
Partly Cloudy
29.4°C · 55.3% humidity
29.4°
Feels 32.9°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
La Unión's air quality — share it
AQI Forecast
54
3am
54
54
26
6am
34
40
44
9am
47
49
50
12pm
51
52
53
3pm
53
53
53
6pm
54
54
54
9pm
54
54
54
12am
54
54
Air Quality Index Trend
19h · 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.
55.3%
Humidity
12.8 km/h
Wind SSE
1010.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.26 µg/m³
PM10
27.45 µg/m³
050100150200300500
What is the weather forecast for La Unión?
Temperature & Precipitation
PM2.5 Trend
19h · 1 stationPM2.56.26 µg/m³
✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for La Unión?
08-03
29.4° 23.8°
0.06 mm
08-04
30.1° 24.9°
0.31 mm
08-05
29.3° 24.1°
2.94 mm
08-06
32.3° 24.1°
08-07
29.1° 23.6°
0.13 mm
08-08
32.1° 24.4°
0.25 mm
08-09
32.3° 26.0°
0.31 mm
Both models agree
Avg diff: 4.3°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 2026-08-09T12:12 UTC.