Climate averages 1991–2020

Santo Antônio do Descoberto weather
in December.

A warm, very wet month: the joint 8th warmest and the wettest of the year.

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

Average high 27.1°C Daytime mean, December
Average low 19.4°C Night-time mean, December
Rainfall 225 mm 24 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Santo Antônio do Descoberto · average highYear overview

December is a warm month in Santo Antônio do Descoberto: daytime highs average 27.1°C and nights cool to about 19.4°C. By daytime temperature it is the joint 8th warmest of the 12 months.

Expect about 225 mm of rain on roughly 24 days, which makes December a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 03 min on an average December day.

The nearest other city in this atlas is Samambaia (17 km away). In December its highs average 25.2°C, 1.9°C cooler than Santo Antônio do Descoberto, with 245 mm of rain.

Among the 448 cities listed in Brazil, Santo Antônio do Descoberto ranks joint 315th of 448 for the warmest December highs and joint 314th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Santo Antônio do Descoberto is 1.4°C cooler than that mean.

From December to January, average highs stay level at 27.1°C, and monthly rainfall falls from 225 mm to 219 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. 101520253035 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 2500

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

Every month, side by side

Santo Antônio do Descoberto climate table

1991–2020
Monthly climate averages for Santo Antônio do Descoberto, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 27.1°C19.3°C19.3°C21922.513.013 h
February 27.4°C19.2°C19.2°C19320.312.613 h
March 27.2°C19.1°C19.1°C20622.012.212 h
April 27.3°C18.5°C18.5°C9113.211.712 h
May 27.0°C17.0°C17.0°C193.111.411 h
June 26.5°C15.8°C15.8°C4.20.611.211 h
July 26.8°C15.5°C15.5°C0.30.111.311 h
August 28.8°C17.0°C17.0°C6.11.511.612 h
September 30.7°C19.4°C19.4°C325.312.012 h
October 30.1°C19.9°C19.9°C11715.112.412 h
November 27.4°C19.3°C19.3°C20922.812.813 h
December, selected 27.1°C19.4°C19.4°C22524.313.113 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 Santo Antônio do Descoberto

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 Santo Antônio do Descoberto) is explained once on the Santo Antônio do Descoberto year overview and on the Sources, method and limits page.