Air Quality in Chillán Viejo, Chile
Windy
7.9°C · 80.8% humidity
7.9°
Feels 2.6°
56
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
AQI Forecast
24
5pm
24
24
56
8pm
47
40
36
11pm
32
31
29
2am
28
27
27
5am
26
25
25
8am
25
25
25
11am
25
25
25
2pm
25
25
Air Quality Index Trend
34h · 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.
80.8%
Humidity
51.9 km/h
Wind SSW
1021.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
14.45 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Chillán Viejo?
Temperature & Precipitation
PM2.5 Trend
34h · 1 stationPM2.514.45 µg/m³
✓ WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
14.45
Median
14.45
Average
12.0
Low
16.9
High
PM2.5 µg/m³ · Model: 5.8 · Bias: -8.6
What is the 7-day forecast for Chillán Viejo?
07-22
7.9° 1.0°
2.75 mm
07-23
14.5° 2.2°
1.06 mm
07-24
12.9° -0.1°
0.25 mm
07-25
10.8° 4.8°
3.88 mm
07-26
16.4° 3.8°
4.88 mm
07-27
12.9° 4.6°
0.19 mm
07-28
17.1° 9.8°
1.75 mm
Both models agree
Avg diff: 3.6°C
Where are air quality stations near Chillán Viejo?
29
Puren, Chile
55
Puren, Chile
26
INIA, Chillán, Chile
53
INIA, Chillán, Chile
40
San Carlos, Chile
57
San Carlos, Chile
77
San Carlos, Chile
What cities are near Chillán 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 2026-07-22T00:55 UTC.