Climate averages 1991–2020

Diourbel weather
in September.

A hot, wet month: one of the coolest and the 11th driest of the year.

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

Average high 31.5°C Daytime mean, September
Average low 23.9°C Night-time mean, September
Rainfall 124 mm 14 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Diourbel · average highYear overview

September is a hot month in Diourbel: daytime highs average 31.5°C and nights cool to about 23.9°C. By daytime temperature it is one of the coolest months of the year.

Expect about 124 mm of rain on roughly 14 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average September day.

The nearest other city in this atlas is Mbaké (39 km away). In September its highs average 31.6°C, about as warm as Diourbel, with 120 mm of rain.

Among the 16 cities listed in Senegal, Diourbel ranks 5th of 16 for the warmest September highs and 12th of 16 for the driest September (rainfall, lowest first). The mean September high of those 16 cities is 31.1°C; Diourbel is 0.5°C warmer than that mean.

From September to October, average highs rise by 2.5°C to 34.0°C, and monthly rainfall falls from 124 mm to 29 mm.

The annual picture

September 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

Diourbel climate table

1991–2020
Monthly climate averages for Diourbel, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 31.9°C17.6°C17.6°C2.90.311.411 h
February 33.9°C18.7°C18.7°C1.20.211.712 h
March 36.1°C19.4°C19.4°C0.30.112.012 h
April 37.2°C19.8°C19.8°C00.012.512 h
May 37.0°C20.7°C20.7°C0.20.012.813 h
June 35.7°C22.5°C22.5°C6.31.313.013 h
July 33.4°C23.9°C23.9°C638.212.913 h
August 31.5°C24.0°C24.0°C15015.512.613 h
September, selected 31.5°C23.9°C23.9°C12414.012.212 h
October 34.0°C23.3°C23.3°C294.211.812 h
November 35.0°C21.0°C21.0°C0.50.111.511 h
December 32.8°C18.9°C18.9°C1.80.311.311 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

September in nearby cities

Distance from Diourbel

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