Climate averages 1991–2020

Corumbá weather
in December.

A hot, wet month: the 3rd warmest and the 10th driest of the year.

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

Average high 32.0°C Daytime mean, December
Average low 24.5°C Night-time mean, December
Rainfall 160 mm 19 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Corumbá · average highYear overview

December is a hot month in Corumbá: daytime highs average 32.0°C and nights cool to about 24.5°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 160 mm of rain on roughly 19 days, which makes December a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 15 min on an average December day.

The nearest other city in this atlas is Cáceres, Brazil (327 km away). In December its highs average 31.5°C, about as warm as Corumbá, with 165 mm of rain.

Among the 448 cities listed in Brazil, Corumbá ranks joint 30th of 448 for the warmest December highs and joint 156th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Corumbá is 3.6°C warmer than that mean.

From December to January, average highs fall by 0.3°C to 31.8°C, and monthly rainfall rises from 160 mm to 178 mm.

The annual picture

December 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. 1520253035 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

Corumbá climate table

1991–2020
Monthly climate averages for Corumbá, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 31.8°C24.5°C24.5°C17820.313.113 h
February 31.1°C24.2°C24.2°C16419.912.713 h
March 30.9°C23.9°C23.9°C13917.812.212 h
April 30.1°C22.3°C22.3°C719.911.712 h
May 27.7°C19.5°C19.5°C616.911.211 h
June 27.4°C18.3°C18.3°C233.811.011 h
July 27.7°C17.3°C17.3°C223.211.111 h
August 30.6°C19.1°C19.1°C253.211.511 h
September 32.4°C21.4°C21.4°C516.712.012 h
October 32.7°C23.7°C23.7°C10913.412.513 h
November 31.9°C23.8°C23.8°C14515.213.013 h
December, selected 32.0°C24.5°C24.5°C16019.013.213 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

December in nearby cities

Distance from Corumbá

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 Corumbá) is explained once on the Corumbá year overview and on the Sources, method and limits page.