Climate averages 1991–2020

Saint-Louis weather
in March.

A warm, very dry month: the 9th warmest and the joint 2nd driest of the year. Meets the pleasant-weather rule

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

Average high 27.9°C Daytime mean, March
Average low 19.3°C Night-time mean, March
Rainfall <1 mm Almost no rain
Daylight 12 h Sunrise to sunset, per day
Every month in Saint-Louis · average highYear overview

March is a warm month in Saint-Louis: daytime highs average 27.9°C and nights cool to about 19.3°C. By daytime temperature it is the 9th warmest of the 12 months.

Rain is very rare: less than 1 mm falls in a typical March (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average March day.

The nearest other city in this atlas is Louga (53 km away). In March its highs average 35.0°C, 7.1°C warmer than Saint-Louis, with almost no rain (under 1 mm).

Among the 16 cities listed in Senegal, Saint-Louis ranks 15th of 16 for the warmest March highs and joint 3rd of 16 for the driest March (rainfall, lowest first). The mean March high of those 16 cities is 33.8°C; Saint-Louis is 5.9°C cooler than that mean.

From March to April, average highs fall by 0.3°C to 27.6°C, and monthly rainfall stays under 1 mm.

The annual picture

March 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 1000

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

Every month, side by side

Saint-Louis climate table

1991–2020
Monthly climate averages for Saint-Louis, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 27.0°C18.4°C18.4°C2.70.211.311 h
February 27.4°C18.9°C18.9°C1.40.211.612 h
March, selected 27.9°C19.3°C19.3°C0.10.012.012 h
April 27.6°C19.3°C19.3°C0.10.012.512 h
May 28.1°C20.5°C20.5°C00.012.913 h
June 28.9°C22.7°C22.7°C0.80.313.113 h
July 29.5°C24.6°C24.6°C112.013.013 h
August 30.1°C25.6°C25.6°C577.712.713 h
September 30.9°C26.1°C26.1°C527.212.212 h
October 32.1°C25.6°C25.6°C132.111.812 h
November 31.0°C23.2°C23.2°C0.30.111.411 h
December 28.6°C20.2°C20.2°C1.70.311.211 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

March in nearby cities

Distance from Saint-Louis

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 Saint-Louis) is explained once on the Saint-Louis year overview and on the Sources, method and limits page.