Climate averages 1991–2020

Nouakchott weather
in May.

A hot, very dry month: the 4th warmest and one of the driest of the year.

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

Average high 33.1°C Daytime mean, May
Average low 21.5°C Night-time mean, May
Rainfall <1 mm Almost no rain
Daylight 13 h Sunrise to sunset, per day
Every month in Nouakchott · average highYear overview

May is a hot month in Nouakchott: daytime highs average 33.1°C and nights cool to about 21.5°C. By daytime temperature it is the 4th warmest of the 12 months.

Rain is very rare: less than 1 mm falls in a typical May (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 58 min on an average May day.

The nearest other city in this atlas is Richard-Toll (183 km away). In May its highs average 39.2°C, 6.0°C warmer than Nouakchott, with almost no rain (under 1 mm).

Among the 2 cities listed in Mauritania, Nouakchott ranks 1st of 2 for the warmest May highs and 1st of 2 for the driest May (rainfall, lowest first). The mean May high of those 2 cities is 28.5°C; Nouakchott is 4.6°C warmer than that mean.

From May to June, average highs rise by 0.7°C to 33.8°C, and monthly rainfall stays under 1 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. 10152025303540 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 500

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

Every month, side by side

Nouakchott climate table

1991–2020
Monthly climate averages for Nouakchott, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 26.6°C15.8°C15.8°C2.20.311.211 h
February 28.4°C17.1°C17.1°C0.90.311.512 h
March 30.5°C18.4°C18.4°C0.30.112.012 h
April 31.7°C19.7°C19.7°C0.10.012.513 h
May, selected 33.1°C21.5°C21.5°C0.10.013.013 h
June 33.8°C23.0°C23.0°C0.30.013.213 h
July 30.9°C23.5°C23.5°C1.60.413.113 h
August 31.7°C24.9°C24.9°C132.412.713 h
September 33.7°C25.6°C25.6°C182.812.312 h
October 34.7°C24.3°C24.3°C6.41.111.712 h
November 31.7°C20.8°C20.8°C1.10.211.311 h
December 28.0°C17.6°C17.6°C4.00.311.111 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 Nouakchott

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