Climate averages 1991–2020

Rancagua weather
in March.

A warm, very dry month: the 4th warmest and the 3rd driest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 25.9°C Daytime mean, March
Average low 13.5°C Night-time mean, March
Rainfall 11 mm 2 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Rancagua · average highYear overview

March is a warm month in Rancagua: daytime highs average 25.9°C and nights cool to about 13.5°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 11 mm of rain on roughly 2 days, which makes March a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average March day.

The nearest other city in this atlas is Paine (40 km away). In March its highs average 27.7°C, 1.8°C warmer than Rancagua, with 7.2 mm of rain.

Among the 40 cities listed in Chile, Rancagua ranks joint 14th of 40 for the warmest March highs and joint 19th of 40 for the driest March (rainfall, lowest first). The mean March high of those 40 cities is 23.9°C; Rancagua is 2.1°C warmer than that mean.

From March to April, average highs fall by 4.1°C to 21.9°C, and monthly rainfall rises from 11 mm to 44 mm.

The annual picture

March in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Rancagua climate table

1991–2020
Monthly climate averages for Rancagua, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.0°C16.8°C16.8°C6.21.414.114 h
February 27.5°C16.0°C16.0°C6.71.513.313 h
March, selected 25.9°C13.5°C13.5°C111.812.312 h
April 21.9°C8.7°C8.7°C444.011.311 h
May 18.4°C5.4°C5.4°C997.310.410 h
June 15.0°C2.6°C2.6°C1679.49.910 h
July 14.4°C1.5°C1.5°C1248.910.110 h
August 15.9°C2.5°C2.5°C1088.610.911 h
September 17.8°C4.5°C4.5°C8110.111.912 h
October 20.1°C6.8°C6.8°C608.512.913 h
November 23.4°C10.0°C10.0°C264.813.914 h
December 26.2°C13.8°C13.8°C132.014.414 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

March in nearby cities

Distance from Rancagua

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Rancagua) is explained once on the Rancagua year overview and on the Sources, method and limits page.