What is the air quality in La Unión today?

The current Air Quality Index (AQI) in La Unión is 36 (Good). PM2.5 concentration is 8.7 µg/m³.

What is the temperature in La Unión right now?

The current temperature in La Unión is 27.5°C (feels like 32.7°C). Humidity is 76.0% and wind speed is 9.8 km/h.

Is it safe to go outside in La Unión?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in La Unión, El Salvador

Drizzle

27.5°C · 76.0% humidity

27.5°

Feels 32.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

24h · 1 stn

View full history →

La Unión's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.

76.0%

Humidity

9.8 km/h

Wind SE

1008.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.7 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for La Unión?

Temperature & Precipitation

PM2.5 Trend

24h · 1 station

PM2.58.7 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for La Unión?

10-21

27.5° 24.0°

17.62 mm

10-22

30.3° 23.8°

18.5 mm

10-23

28.7° 24.1°

8.69 mm

10-24

29.5° 24.0°

7.31 mm

10-25

28.7° 24.2°

5.38 mm

10-26

26.8° 24.4°

9.44 mm

10-27

30.4° 23.2°

10.13 mm

Both models agree Avg diff: 3.5°C

What cities are near La Unión?

69 San Miguel 38 San Lorenzo 69 San Francisco 61 San Rafael Oriente 59 Usulután 59 Santiago de María 24 Ciudad Choluteca 59 Puerto El Triunfo 18 Sensuntepeque 25 El Viejo

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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 2026-10-21T16:13 UTC.