Climate averages 1991–2020

Barcarena weather
in December.

A hot, wet month: the 5th warmest and the 6th driest of the year.

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

Average high 30.6°C Daytime mean, December
Average low 25.0°C Night-time mean, December
Rainfall 103 mm 17 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Barcarena · average highYear overview

December is a hot month in Barcarena: daytime highs average 30.6°C and nights cool to about 25.0°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 103 mm of rain on roughly 17 days, which makes December a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 12 min on an average December day.

The nearest other city in this atlas is Belém (15 km away). In December its highs average 30.7°C, about as warm as Barcarena, with 108 mm of rain.

Among the 448 cities listed in Brazil, Barcarena ranks joint 66th of 448 for the warmest December highs and joint 89th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Barcarena is 2.1°C warmer than that mean.

From December to January, average highs fall by 1.6°C to 29.0°C, and monthly rainfall rises from 103 mm to 228 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. 20253035 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 4000

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

Every month, side by side

Barcarena climate table

1991–2020
Monthly climate averages for Barcarena, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.0°C24.3°C24.3°C22827.712.212 h
February 28.5°C23.9°C23.9°C31627.112.212 h
March 28.5°C23.9°C23.9°C39330.212.112 h
April 28.6°C24.0°C24.0°C37929.412.112 h
May 29.2°C24.3°C24.3°C25427.612.012 h
June 29.5°C24.4°C24.4°C10920.712.012 h
July 29.9°C24.4°C24.4°C6715.012.012 h
August 31.0°C24.6°C24.6°C349.612.112 h
September 31.7°C24.8°C24.8°C195.612.112 h
October 32.1°C25.0°C25.0°C204.912.112 h
November 31.8°C25.2°C25.2°C377.112.212 h
December, selected 30.6°C25.0°C25.0°C10317.312.212 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 Barcarena

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