Climate averages 1991–2020

Maseru weather
in May.

A mild, fairly dry month: the 10th warmest and the 5th driest of the year.

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

Average high 17.6°C Daytime mean, May
Average low 3.5°C Night-time mean, May
Rainfall 29 mm 4 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Maseru · average highYear overview

May is a mild month in Maseru: daytime highs average 17.6°C and nights cool to about 3.5°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 29 mm of rain on roughly 4 days, which makes May a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 40 min on an average May day.

The nearest other city in this atlas is Thaba Nchu (64 km away). In May its highs average 18.5°C, 0.9°C warmer than Maseru, with 21 mm of rain.

From May to June, average highs fall by 3.0°C to 14.6°C, and monthly rainfall falls from 29 mm to 17 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. -5051015202530 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

Maseru climate table

1991–2020
Monthly climate averages for Maseru, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 26.7°C14.5°C14.5°C14315.613.814 h
February 25.8°C13.8°C13.8°C11713.713.113 h
March 24.0°C11.8°C11.8°C10713.012.312 h
April 20.6°C7.9°C7.9°C688.611.411 h
May, selected 17.6°C3.5°C3.5°C294.010.711 h
June 14.6°C-0.2°C-0.2°C172.510.310 h
July 14.9°C-0.8°C-0.8°C102.010.510 h
August 18.0°C1.9°C1.9°C253.311.111 h
September 22.6°C6.3°C6.3°C243.911.912 h
October 24.3°C9.6°C9.6°C849.212.813 h
November 25.1°C11.4°C11.4°C11211.213.614 h
December 26.3°C13.5°C13.5°C14214.014.014 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 Maseru

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