Air Quality in La Unión, El Salvador
Partly Cloudy
28.2°C · 65.6% humidity
28.2°
Feels 32.5°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
La Unión's air quality — share it
AQI Forecast
34
10am
34
34
21
1pm
10
17
22
4pm
25
28
23
7pm
24
25
25
10pm
26
26
26
1am
27
27
27
4am
27
27
25
7am
27
27
Air Quality Index Trend
18h · 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.
65.6%
Humidity
29.5 km/h
Wind S
1012.8 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.0 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for La Unión?
Temperature & Precipitation
PM2.5 Trend
18h · 1 stationPM2.55.0 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX24.9
Extreme
What is the 7-day forecast for La Unión?
09-05
28.2° 24.8°
12.44 mm
09-06
30.3° 23.8°
9.06 mm
09-07
30.6° 25.7°
1.56 mm
09-08
29.3° 25.3°
0.13 mm
09-09
28.8° 23.8°
31.06 mm
09-10
29.6° 24.7°
4.75 mm
09-11
31.1° 24.5°
22.94 mm
Both models agree
Avg diff: 4.4°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 2026-09-05T19:46 UTC.