Air Quality in La Unión, El Salvador
Partly Cloudy
31.4°C · 52.5% humidity
31.4°
Feels 35.4°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
La Unión's air quality — share it
AQI Forecast
25
9am
25
25
38
12pm
35
33
31
3pm
30
29
28
6pm
26
26
26
9pm
25
25
25
12am
25
25
25
3am
25
25
25
6am
25
25
Air Quality Index Trend
20h · 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.
52.5%
Humidity
32.0 km/h
Wind S
1009.7 hPa
Pressure
29.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.12 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for La Unión?
Temperature & Precipitation
PM2.5 Trend
20h · 1 stationPM2.59.12 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX29.9
Extreme
What is the 7-day forecast for La Unión?
05-29
31.4° 26.2°
4.5 mm
05-30
31.8° 24.8°
0.88 mm
05-31
29.5° 25.2°
06-01
26.7° 25.1°
1.56 mm
06-02
30.4° 25.3°
4.5 mm
06-03
28.8° 25.2°
14.44 mm
06-04
29.1° 24.4°
6.19 mm
Both models agree
Avg diff: 2.3°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 2026-05-29T18:45 UTC.