Air Quality in Rancagua, Chile
Partly Cloudy
13.5°C · 57.8% humidity
13.5°
Feels 13.5°
62
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
Rancagua's air quality — share it
AQI Forecast
54
3am
54
27
62
6am
59
72
79
9am
43
34
32
12pm
30
29
27
3pm
26
26
28
6pm
27
54
54
9pm
54
54
54
12am
54
54
Air Quality Index Trend
39h · 4 stnRancagua'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 Rancagua is 1.2× the WHO 24-hour guideline of 15 µg/m³.
57.8%
Humidity
23.4 km/h
Wind ESE
1015.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
17.4 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Rancagua?
Temperature & Precipitation
PM2.5 Trend
39h · 4 stationsPM2.517.4 µg/m³
×1.2 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
17.4
Median
17.1
Average
14.0
Low
20.2
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -7.4
What is the 7-day forecast for Rancagua?
09-05
13.5° 9.5°
3.06 mm
09-06
14.5° 6.9°
0.13 mm
09-07
20.2° 6.9°
0.5 mm
09-08
12.6° 9.3°
5.19 mm
09-09
16.2° 9.3°
5.81 mm
09-10
12.6° 8.5°
21.38 mm
09-11
19.1° 5.2°
12.44 mm
Both models agree
Avg diff: 4.1°C
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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 2026-09-05T10:04 UTC.