Climate averages 1991–2020

Tamanghasset weather
in May.

A hot, very dry month: the 4th warmest and the 10th driest of the year.

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

Average high 33.7°C Daytime mean, May
Average low 19.9°C Night-time mean, May
Rainfall 2.7 mm fewer than one day with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Tamanghasset · average highYear overview

May is a hot month in Tamanghasset: daytime highs average 33.7°C and nights cool to about 19.9°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 2.7 mm of rain on fewer than one day, which makes May a very dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 13 min on an average May day.

The nearest other city in this atlas is Arlit (490 km away). In May its highs average 41.7°C, 8.0°C warmer than Tamanghasset, with 1.0 mm of rain.

Among the 55 cities listed in Algeria, Tamanghasset ranks joint 1st of 55 for the warmest May highs and 4th of 55 for the driest May (rainfall, lowest first). The mean May high of those 55 cities is 25.6°C; Tamanghasset is 8.1°C warmer than that mean.

From May to June, average highs rise by 1.9°C to 35.6°C, and monthly rainfall falls from 2.7 mm to 1.5 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. 0510152025303540 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

Tamanghasset climate table

1991–2020
Monthly climate averages for Tamanghasset, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 19.4°C5.2°C5.2°C2.00.510.911 h
February 22.1°C7.4°C7.4°C1.30.311.411 h
March 25.8°C11.1°C11.1°C3.60.712.012 h
April 30.6°C15.9°C15.9°C0.70.112.713 h
May, selected 33.7°C19.9°C19.9°C2.70.513.213 h
June 35.6°C22.2°C22.2°C1.50.413.514 h
July 35.4°C22.5°C22.5°C1.50.413.413 h
August 34.6°C22.3°C22.3°C5.21.812.913 h
September 33.4°C20.7°C20.7°C1.80.712.312 h
October 29.5°C16.5°C16.5°C2.10.711.612 h
November 24.5°C11.1°C11.1°C0.70.211.111 h
December 20.8°C7.0°C7.0°C1.00.410.811 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 Tamanghasset

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