Climate averages 1991–2020

Mthatha weather
in September.

A warm, moderately wet month: the 7th warmest and the 5th driest of the year.

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

Average high 22.4°C Daytime mean, September
Average low 10.2°C Night-time mean, September
Rainfall 56 mm 8 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Mthatha · average highYear overview

September is a warm month in Mthatha: daytime highs average 22.4°C and nights cool to about 10.2°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 56 mm of rain on roughly 8 days, which makes September a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 52 min on an average September day.

The nearest other city in this atlas is Mdantsane (177 km away). In September its highs average 21.7°C, 0.7°C cooler than Mthatha, with 48 mm of rain.

Among the 95 cities listed in South Africa, Mthatha ranks joint 76th of 95 for the warmest September highs and joint 84th of 95 for the driest September (rainfall, lowest first). The mean September high of those 95 cities is 24.3°C; Mthatha is 1.9°C cooler than that mean.

From September to October, average highs fall by 0.2°C to 22.2°C, and monthly rainfall rises from 56 mm to 96 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. 51015202530 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

Mthatha climate table

1991–2020
Monthly climate averages for Mthatha, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 24.9°C16.2°C16.2°C14518.713.914 h
February 25.2°C16.7°C16.7°C13116.013.213 h
March 24.4°C15.6°C15.6°C12016.112.312 h
April 22.7°C13.1°C13.1°C769.811.311 h
May 21.6°C10.6°C10.6°C275.010.511 h
June 19.8°C7.6°C7.6°C243.310.110 h
July 20.0°C7.2°C7.2°C223.210.310 h
August 21.2°C8.6°C8.6°C325.511.011 h
September, selected 22.4°C10.2°C10.2°C568.411.912 h
October 22.2°C11.7°C11.7°C9614.912.813 h
November 22.9°C13.1°C13.1°C12916.413.714 h
December 24.0°C14.9°C14.9°C14018.514.214 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 Mthatha

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