Climate averages 1991–2020

Campos dos Goytacazes weather
in December.

A hot, very wet month: the 4th warmest and the wettest of the year.

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

Average high 29.4°C Daytime mean, December
Average low 22.6°C Night-time mean, December
Rainfall 196 mm 18 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Campos dos Goytacazes · average highYear overview

December is a hot month in Campos dos Goytacazes: daytime highs average 29.4°C and nights cool to about 22.6°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 196 mm of rain on roughly 18 days, which makes December a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 26 min on an average December day.

The nearest other city in this atlas is Itaperuna (84 km away). In December its highs average 29.7°C, about as warm as Campos dos Goytacazes, with 223 mm of rain.

Among the 448 cities listed in Brazil, Campos dos Goytacazes ranks joint 147th of 448 for the warmest December highs and 250th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Campos dos Goytacazes is 0.9°C warmer than that mean.

From December to January, average highs rise by 1.0°C to 30.4°C, and monthly rainfall falls from 196 mm to 155 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

Campos dos Goytacazes climate table

1991–2020
Monthly climate averages for Campos dos Goytacazes, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.4°C23.3°C23.3°C15513.513.313 h
February 31.0°C23.5°C23.5°C8310.212.813 h
March 29.9°C23.0°C23.0°C14315.612.212 h
April 28.4°C21.5°C21.5°C8212.211.612 h
May 26.3°C19.2°C19.2°C478.611.111 h
June 25.8°C18.0°C18.0°C205.010.811 h
July 25.5°C17.6°C17.6°C225.310.911 h
August 26.1°C18.0°C18.0°C214.911.411 h
September 27.1°C19.3°C19.3°C477.712.012 h
October 28.0°C20.6°C20.6°C8210.212.613 h
November 28.0°C21.3°C21.3°C16916.013.113 h
December, selected 29.4°C22.6°C22.6°C19617.713.413 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 Campos dos Goytacazes

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 Campos dos Goytacazes) is explained once on the Campos dos Goytacazes year overview and on the Sources, method and limits page.