Climate averages 1991–2020

Welkom weather
in August.

A mild, fairly dry month: the 9th warmest and the 4th driest of the year.

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

Average high 20.6°C Daytime mean, August
Average low 4.8°C Night-time mean, August
Rainfall 15 mm 2 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Welkom · average highYear overview

August is a mild month in Welkom: daytime highs average 20.6°C and nights cool to about 4.8°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 15 mm of rain on roughly 2 days, which makes August a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 07 min on an average August day.

The nearest other city in this atlas is Odendaalsrus (12 km away). In August its highs average 20.9°C, about as warm as Welkom, with 16 mm of rain.

Among the 95 cities listed in South Africa, Welkom ranks joint 61st of 95 for the warmest August highs and joint 53rd of 95 for the driest August (rainfall, lowest first). The mean August high of those 95 cities is 21.0°C; Welkom is 0.4°C cooler than that mean.

From August to September, average highs rise by 4.7°C to 25.3°C, and monthly rainfall falls from 15 mm to 14 mm.

The annual picture

August 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. 05101520253035 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

Welkom climate table

1991–2020
Monthly climate averages for Welkom, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.2°C17.0°C17.0°C9213.113.714 h
February 28.3°C16.5°C16.5°C7511.513.113 h
March 26.7°C14.7°C14.7°C6710.312.312 h
April 23.2°C10.8°C10.8°C466.811.411 h
May 20.2°C6.3°C6.3°C193.210.811 h
June 17.1°C2.7°C2.7°C121.810.410 h
July 17.3°C2.2°C2.2°C6.31.010.511 h
August, selected 20.6°C4.8°C4.8°C152.011.111 h
September 25.3°C9.1°C9.1°C142.611.912 h
October 27.3°C12.3°C12.3°C517.512.713 h
November 28.1°C14.1°C14.1°C678.913.513 h
December 29.1°C16.0°C16.0°C9113.113.914 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

August in nearby cities

Distance from Welkom

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

Virginia lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.