What is the air quality in Rancagua today?

The current Air Quality Index (AQI) in Rancagua is 72 (Moderate). PM2.5 concentration is 22.1 µg/m³.

What is the temperature in Rancagua right now?

The current temperature in Rancagua is 16.3°C (feels like 16.3°C). Humidity is 30.1% and wind speed is 11.8 km/h.

Air Quality in Rancagua, Chile

Clear

16.3°C · 30.1% humidity

16.3°

Feels 16.3°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

1 station

Nearby Monitoring Stations

AQI Forecast

66 3pm

72 6pm

140

80 9pm

64 12am

53 3am

34 6am

66 9am

54 12pm

Air Quality Index Trend

47h · 2 stn

View full history →

Rancagua'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 1.5× the WHO 24-hour guideline of 15 µg/m³.

30.1%

Humidity

11.8 km/h

Wind NE

1012.7 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

22.1 µg/m³

PM10▲

129.9 µg/m³

050100150200300500

What is the weather forecast for Rancagua?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations

PM2.522.1 µg/m³ ×1.5 WHO

Moderate

PM10129.9 µg/m³

Moderate

UV INDEX0.7

Low

Station readings (1 station within 25 km)

22.1

Median

22.1

Average

22.1

Low

22.1

High

PM2.5 µg/m³ · Model: 51.48 · Bias: +29.4

What is the 7-day forecast for Rancagua?

05-29

24.2° 10.9°

05-30

22.7° 14.6°

05-31

21.6° 12.6°

06-01

20.8° 11.0°

06-02

20.4° 9.3°

06-03

19.7° 6.3°

06-04

17.9° 8.5°

Both models agree Avg diff: 2.3°C

Where are air quality stations near Rancagua?

Rancagua I, Chile

2.6 km PM2.5: 9.4 µg/m³

Rancagua I, Chile

2.6 km PM2.5: 5.3 µg/m³

Rancagua I, Chile

2.6 km PM2.5: 3.4 µg/m³

Rancagua I, Chile

2.6 km PM2.5: 7.4 µg/m³

Rancagua I, Chile

2.6 km PM2.5: 7.7 µg/m³

Rancagua I, Chile

2.6 km PM2.5: 16.9 µg/m³

Rancagua I, Chile

2.6 km PM2.5: 3.1 µg/m³

Rancagua I, Chile

2.6 km PM2.5: 7.2 µg/m³

Rancagua II, Chile

2.8 km PM2.5: 6.0 µg/m³

Rancagua II, Chile

2.8 km PM2.5: 15.9 µg/m³

What cities are near Rancagua?

72 Machalí 72 Graneros 72 San Francisco de Mostazal 85 Rengo 97 Paine 85 San Vicente 85 San Vicente de Tagua Tagua 103 Buin 137 Talagante 148 El Monte

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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 2026-05-29T22:26 UTC.