What is the air quality in Usulután today?

The current Air Quality Index (AQI) in Usulután is 62 (Moderate). PM2.5 concentration is 17.1 µg/m³.

What is the temperature in Usulután right now?

The current temperature in Usulután is 27.1°C (feels like 30.5°C). Humidity is 63.6% and wind speed is 20.6 km/h.

Air Quality in Usulután, SV

Partly Cloudy

27.1°C · 63.6% humidity

27.1°

Feels 30.5°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

50 2am

75 5am

75 8am

75 11am

75 2pm

75 5pm

99 8pm

75 11pm

Station readings 34h ago

AQI 38

PM2.5 9.0 µg/m³ · 34h ago

63.6%

Humidity

20.6 km/h

Wind N

1007.3 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Usulután?

Temperature & Precipitation

PM2.517.1 µg/m³ ×1.1 WHO

Moderate

PM1020.55 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Usulután?

04-10

31.0° 25.3°

04-11

31.6° 25.4°

04-12

32.0° 25.1°

04-13

30.4° 26.5°

04-14

30.2° 27.1°

04-15

30.1° 26.4°

2.75 mm

04-16

29.0° 26.8°

2.12 mm

Both models agree Avg diff: 2.0°C

What cities are near Usulután?

62 San Rafael Oriente 62 Puerto El Triunfo 86 Santiago de María 58 San Miguel 71 San Vicente 70 Zacatecoluca 55 San Francisco 52 Sensuntepeque 55 La Unión 70 Cojutepeque

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T05:44 UTC.