Climate averages 1991–2020

Kumasi weather
in May.

A hot, wet month: the 6th warmest and the 9th driest of the year.

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

Average high 30.6°C Daytime mean, May
Average low 23.4°C Night-time mean, May
Rainfall 117 mm 20 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Kumasi · average highYear overview

May is a hot month in Kumasi: daytime highs average 30.6°C and nights cool to about 23.4°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 117 mm of rain on roughly 20 days, which makes May a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average May day.

The nearest other city in this atlas is Obuase (54 km away). In May its highs average 30.2°C, about as warm as Kumasi, with 142 mm of rain.

Among the 26 cities listed in Ghana, Kumasi ranks 12th of 26 for the warmest May highs and joint 13th of 26 for the driest May (rainfall, lowest first). The mean May high of those 26 cities is 31.2°C; Kumasi is 0.5°C cooler than that mean.

From May to June, average highs fall by 1.9°C to 28.7°C, and monthly rainfall rises from 117 mm to 130 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. 152025303540 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 1500

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

Every month, side by side

Kumasi climate table

1991–2020
Monthly climate averages for Kumasi, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 32.9°C22.5°C22.5°C203.811.812 h
February 33.7°C23.6°C23.6°C428.111.912 h
March 32.7°C23.8°C23.8°C9917.212.112 h
April 31.8°C23.8°C23.8°C10317.912.312 h
May, selected 30.6°C23.4°C23.4°C11720.012.412 h
June 28.7°C22.4°C22.4°C13022.212.513 h
July 27.7°C21.8°C21.8°C10619.312.512 h
August 27.7°C21.7°C21.7°C9217.912.312 h
September 28.2°C22.0°C22.0°C14123.912.212 h
October 28.8°C22.2°C22.2°C12121.912.012 h
November 29.7°C22.3°C22.3°C6012.611.812 h
December 31.2°C22.4°C22.4°C224.911.712 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 Kumasi

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