Climate averages 1991–2020

Kosti weather
in May.

A very hot, fairly dry month: the 2nd warmest and the 7th driest of the year.

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

Average high 39.7°C Daytime mean, May
Average low 26.9°C Night-time mean, May
Rainfall 15 mm 4 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Kosti · average highYear overview

May is a very hot month in Kosti: daytime highs average 39.7°C and nights cool to about 26.9°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 15 mm of rain on roughly 4 days, which makes May a fairly dry month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 44 min on an average May day.

The nearest other city in this atlas is Ad Douiem (101 km away). In May its highs average 39.3°C, about as warm as Kosti, with 9.1 mm of rain.

Among the 22 cities listed in Sudan, Kosti ranks joint 8th of 22 for the warmest May highs and 13th of 22 for the driest May (rainfall, lowest first). The mean May high of those 22 cities is 38.9°C; Kosti is 0.8°C warmer than that mean.

From May to June, average highs fall by 1.9°C to 37.8°C, and monthly rainfall rises from 15 mm to 23 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. 15202530354045 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 1000

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

Every month, side by side

Kosti climate table

1991–2020
Monthly climate averages for Kosti, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 33.0°C18.8°C18.8°C0.10.011.411 h
February 35.6°C20.5°C20.5°C00.011.712 h
March 38.5°C23.0°C23.0°C0.20.012.112 h
April 40.6°C25.4°C25.4°C1.60.512.412 h
May, selected 39.7°C26.9°C26.9°C154.112.713 h
June 37.8°C26.6°C26.6°C236.212.913 h
July 34.3°C24.8°C24.8°C6812.312.813 h
August 32.7°C24.0°C24.0°C7313.412.613 h
September 34.9°C24.6°C24.6°C399.412.212 h
October 36.8°C25.1°C25.1°C175.311.812 h
November 36.5°C23.2°C23.2°C0.30.111.512 h
December 33.9°C20.0°C20.0°C00.011.411 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 Kosti

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