What is the air quality in Chillán today?

The current Air Quality Index (AQI) in Chillán is 109 (Unhealthy for sensitive groups). PM2.5 concentration is 38.7 µg/m³.

What is the temperature in Chillán right now?

The current temperature in Chillán is 10.5°C (feels like 10.5°C). Humidity is 53.0% and wind speed is 29.2 km/h.

Is it safe to go outside in Chillán?

Sensitive groups should reduce prolonged outdoor exertion. The UV Index is 0.7 (Low).

Air Quality in Chillán, Chile

Partly Cloudy

10.5°C · 53.0% humidity

10.5°

Feels 10.5°

109

Unhealthy for sensitive groups

Sensitive groups should reduce prolonged outdoor exertion.

1 station

Nearby Monitoring Stations

AQI Forecast

54 5pm

109 8pm

102

93 11pm

87 2am

84 5am

83 8am

54 11am

54 2pm

Air Quality Index Trend

25h · 1 stn

View full history →

Chillán's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons. Current PM2.5 concentration in Chillán is 2.6× the WHO 24-hour guideline of 15 µg/m³.

53.0%

Humidity

29.2 km/h

Wind SSW

1019.4 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

109

38.7 µg/m³

PM10

41.2 µg/m³

050100150200300500

What is the weather forecast for Chillán?

Temperature & Precipitation

PM2.5 Trend

25h · 1 station

PM2.538.7 µg/m³ ×2.6 WHO

Unhealthy for sensitive groups

PM1041.2 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

38.7

Median

38.7

Average

38.7

Low

38.7

High

PM2.5 µg/m³ · Model: 20.3 · Bias: -18.4

Both models agree Avg diff: 3.2°C

Where are air quality stations near Chillán?

Puren, Chile

1.4 km PM2.5: 11.3 µg/m³

Puren, Chile

1.4 km PM2.5: 6.0 µg/m³

INIA, Chillán, Chile

1.8 km PM2.5: 13.5 µg/m³

INIA, Chillán, Chile

1.8 km PM2.5: 16.9 µg/m³

San Carlos, Chile

20.0 km PM2.5: 7.4 µg/m³

San Carlos, Chile

20.0 km PM2.5: 6.2 µg/m³

San Carlos, Chile

20.0 km PM2.5: 2.9 µg/m³

What cities are near Chillán?

109 Chillán Viejo 109 San Carlos 109 Coihueco 58 Quillón 59 Cabrero 55 Coelemu 68 Parral 32 Cauquenes 111 Tomé 104 Longaví

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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 2026-06-09T00:41 UTC.