Climate averages 1991–2020

San weather
in August.

A hot, very wet month: the coolest and the wettest of the year.

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

Average high 30.7°C Daytime mean, August
Average low 23.2°C Night-time mean, August
Rainfall 196 mm 21 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in San · average highYear overview

August is a hot month in San: daytime highs average 30.7°C and nights cool to about 23.2°C. By daytime temperature it is the coolest month of the year.

Expect about 196 mm of rain on roughly 21 days, which makes August a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 34 min on an average August day.

The nearest other city in this atlas is Koutiala (118 km away). In August its highs average 29.2°C, 1.4°C cooler than San, with 229 mm of rain.

Among the 13 cities listed in Mali, San ranks 5th of 13 for the warmest August highs and 6th of 13 for the driest August (rainfall, lowest first). The mean August high of those 13 cities is 30.7°C; San is level with that mean.

From August to September, average highs rise by 1.4°C to 32.0°C, and monthly rainfall falls from 196 mm to 107 mm.

The annual picture

August 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 2000

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

Every month, side by side

San climate table

1991–2020
Monthly climate averages for San, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 32.5°C17.7°C17.7°C1.00.211.411 h
February 35.5°C20.0°C20.0°C0.10.011.712 h
March 38.6°C23.3°C23.3°C1.00.412.112 h
April 40.1°C26.4°C26.4°C8.82.612.412 h
May 39.6°C27.6°C27.6°C205.912.713 h
June 37.2°C26.5°C26.5°C4310.212.913 h
July 33.0°C24.3°C24.3°C12317.212.813 h
August, selected 30.7°C23.2°C23.2°C19620.812.613 h
September 32.0°C23.5°C23.5°C10714.812.212 h
October 35.4°C24.0°C24.0°C265.811.812 h
November 35.8°C21.0°C21.0°C0.50.211.512 h
December 33.2°C18.4°C18.4°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

August in nearby cities

Distance from San

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