Climate averages 1991–2020

Tucuruí weather
in December.

A hot, very wet month: the 6th warmest and the 8th driest of the year.

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

Average high 30.5°C Daytime mean, December
Average low 24.6°C Night-time mean, December
Rainfall 198 mm 23 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Tucuruí · average highYear overview

December is a hot month in Tucuruí: daytime highs average 30.5°C and nights cool to about 24.6°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 198 mm of rain on roughly 23 days, which makes December a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average December day.

The nearest other city in this atlas is Tailândia (122 km away). In December its highs average 32.2°C, 1.7°C warmer than Tucuruí, with 149 mm of rain.

Among the 448 cities listed in Brazil, Tucuruí ranks joint 68th of 448 for the warmest December highs and joint 251st of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Tucuruí is 2.1°C warmer than that mean.

From December to January, average highs fall by 1.3°C to 29.2°C, and monthly rainfall rises from 198 mm to 350 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. 2025303540 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 4500

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

Every month, side by side

Tucuruí climate table

1991–2020
Monthly climate averages for Tucuruí, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.2°C23.8°C23.8°C35028.812.312 h
February 29.0°C23.7°C23.7°C33526.712.212 h
March 29.0°C23.7°C23.7°C40929.712.112 h
April 29.1°C23.8°C23.8°C30228.112.012 h
May 29.4°C24.0°C24.0°C17323.211.912 h
June 30.0°C23.9°C23.9°C5812.211.912 h
July 30.9°C23.9°C23.9°C317.211.912 h
August 32.6°C24.5°C24.5°C214.712.012 h
September 33.3°C25.2°C25.2°C275.412.112 h
October 32.9°C25.4°C25.4°C659.812.212 h
November 31.8°C25.2°C25.2°C12116.312.312 h
December, selected 30.5°C24.6°C24.6°C19823.012.312 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 Tucuruí

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