Climate averages 1991–2020

Klerksdorp weather
in December.

A hot, wet month: the warmest and the wettest of the year.

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

Average high 29.0°C Daytime mean, December
Average low 16.7°C Night-time mean, December
Rainfall 102 mm 16 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Klerksdorp · average highYear overview

December is a hot month in Klerksdorp: daytime highs average 29.0°C and nights cool to about 16.7°C. By daytime temperature it is the warmest month of the year.

Expect about 102 mm of rain on roughly 16 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 47 min on an average December day.

The nearest other city in this atlas is Stilfontein (10 km away). In December its highs average 28.7°C, about as warm as Klerksdorp, with 102 mm of rain.

Among the 95 cities listed in South Africa, Klerksdorp ranks joint 13th of 95 for the warmest December highs and joint 39th of 95 for the driest December (rainfall, lowest first). The mean December high of those 95 cities is 26.6°C; Klerksdorp is 2.4°C warmer than that mean.

From December to January, average highs fall by 0.2°C to 28.8°C, and monthly rainfall falls from 102 mm to 101 mm.

The annual picture

December 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 1500

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

Every month, side by side

Klerksdorp climate table

1991–2020
Monthly climate averages for Klerksdorp, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.8°C17.2°C17.2°C10114.713.614 h
February 28.1°C16.7°C16.7°C8312.513.013 h
March 26.8°C15.0°C15.0°C7011.112.312 h
April 24.0°C11.4°C11.4°C386.511.511 h
May 21.4°C7.2°C7.2°C182.710.811 h
June 18.7°C3.7°C3.7°C8.21.510.510 h
July 18.8°C3.2°C3.2°C3.60.810.611 h
August 22.2°C6.0°C6.0°C101.511.211 h
September 26.6°C10.3°C10.3°C142.711.912 h
October 28.2°C13.4°C13.4°C599.012.713 h
November 28.6°C14.9°C14.9°C7311.813.413 h
December, selected 29.0°C16.7°C16.7°C10215.813.814 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

December in nearby cities

Distance from Klerksdorp

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

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