Climate averages 1991–2020

Duque de Caxias weather
in May.

A warm, moderately wet month: the 10th warmest and the 4th driest of the year.

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

Average high 25.8°C Daytime mean, May
Average low 18.3°C Night-time mean, May
Rainfall 74 mm 11 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Duque de Caxias · average highYear overview

May is a warm month in Duque de Caxias: daytime highs average 25.8°C and nights cool to about 18.3°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 74 mm of rain on roughly 11 days, which makes May a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 02 min on an average May day.

The nearest other city in this atlas is Belford Roxo (9 km away). In May its highs average 25.9°C, about as warm as Duque de Caxias, with 58 mm of rain.

Among the 448 cities listed in Brazil, Duque de Caxias ranks joint 200th of 448 for the warmest May highs and joint 239th of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; Duque de Caxias is 0.5°C warmer than that mean.

From May to June, average highs fall by 0.4°C to 25.4°C, and monthly rainfall falls from 74 mm to 47 mm.

The annual picture

May 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 3000

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

Every month, side by side

Duque de Caxias climate table

1991–2020
Monthly climate averages for Duque de Caxias, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.9°C23.2°C23.2°C26521.213.413 h
February 31.4°C23.3°C23.3°C20017.912.913 h
March 29.7°C22.6°C22.6°C21621.012.212 h
April 28.1°C21.0°C21.0°C10613.511.612 h
May, selected 25.8°C18.3°C18.3°C7411.011.011 h
June 25.4°C16.9°C16.9°C477.210.811 h
July 25.1°C16.1°C16.1°C477.410.911 h
August 26.1°C16.7°C16.7°C447.511.311 h
September 27.1°C18.2°C18.2°C8611.011.912 h
October 28.2°C19.8°C19.8°C12114.312.613 h
November 28.1°C20.8°C20.8°C21319.013.213 h
December 29.8°C22.3°C22.3°C23721.113.514 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

May in nearby cities

Distance from Duque de Caxias

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 Duque de Caxias) is explained once on the Duque de Caxias year overview and on the Sources, method and limits page.