Air Quality in Chillán Viejo, Chile
Partly Cloudy
10.5°C · 53.0% humidity
10.5°
Feels 10.5°
74
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
Chillán Viejo's air quality — share it
AQI Forecast
66
6pm
66
83
74
9pm
78
78
80
12am
81
81
82
3am
82
82
83
6am
83
83
66
9am
54
54
54
12pm
54
54
54
3pm
34
34
Air Quality Index Trend
25h · 1 stnChillán Viejo'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 Viejo is 1.5× 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▲
23.15 µg/m³
PM10
54.9 µg/m³
050100150200300500
What is the weather forecast for Chillán Viejo?
Temperature & Precipitation
PM2.5 Trend
25h · 1 stationPM2.523.15 µg/m³
×1.5 WHO
Moderate
PM1054.9 µg/m³
Moderate
UV INDEX0.7
Low
What is the 7-day forecast for Chillán Viejo?
06-09
15.4° 6.3°
06-10
14.7° 6.0°
0.56 mm
06-11
15.0° 4.9°
3.94 mm
06-12
10.9° 4.8°
0.62 mm
06-13
8.6° 1.6°
2.25 mm
06-14
10.8° 2.3°
06-15
13.4° 7.2°
16.62 mm
Both models agree
Avg diff: 3.2°C
Where are air quality stations near Chillán Viejo?
47
Puren, Chile
25
Puren, Chile
54
INIA, Chillán, Chile
61
INIA, Chillán, Chile
12
San Carlos, Chile
31
San Carlos, Chile
26
San Carlos, Chile
What cities are near Chillán Viejo?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T01:06 UTC.