Climate averages 1991–2020

Boma weather
in June.

A hot, very dry month: the 10th warmest and the 2nd driest of the year. Meets the pleasant-weather rule

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

Average high 28.0°C Daytime mean, June
Average low 20.4°C Night-time mean, June
Rainfall 3.1 mm fewer than one day with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Boma · average highYear overview

June is a hot month in Boma: daytime highs average 28.0°C and nights cool to about 20.4°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 3.1 mm of rain on fewer than one day, which makes June a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 47 min on an average June day.

The nearest other city in this atlas is Matadi (45 km away). In June its highs average 27.7°C, about as warm as Boma, with 2.2 mm of rain.

Among the 60 cities listed in the Democratic Republic of the Congo, Boma ranks joint 41st of 60 for the warmest June highs and 20th of 60 for the driest June (rainfall, lowest first). The mean June high of those 60 cities is 29.3°C; Boma is 1.3°C cooler than that mean.

From June to July, average highs fall by 0.6°C to 27.4°C, and monthly rainfall falls from 3.1 mm to 2.2 mm.

The annual picture

June 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

Boma climate table

1991–2020
Monthly climate averages for Boma, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 30.1°C23.5°C23.5°C17621.912.412 h
February 30.5°C23.9°C23.9°C14619.312.312 h
March 30.8°C24.2°C24.2°C14720.412.112 h
April 30.3°C24.2°C24.2°C18422.112.012 h
May 29.5°C23.3°C23.3°C6311.611.912 h
June, selected 28.0°C20.4°C20.4°C3.10.411.812 h
July 27.4°C18.8°C18.8°C2.20.111.812 h
August 27.2°C19.2°C19.2°C5.50.811.912 h
September 28.2°C20.8°C20.8°C122.612.112 h
October 29.7°C22.7°C22.7°C5210.412.212 h
November 30.1°C23.5°C23.5°C15522.012.412 h
December 29.8°C23.5°C23.5°C18723.412.512 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

June in nearby cities

Distance from Boma

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