Climate averages 1991–2020

Rustenburg weather
in January.

A hot, wet month: the 2nd warmest and the 11th driest of the year.

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

Average high 28.8°C Daytime mean, January

Average low 18.4°C Night-time mean, January

Rainfall 94 mm 14 days with ≥1 mm

Daylight 14 h Sunrise to sunset, per day

January is a hot month in Rustenburg: daytime highs average 28.8°C and nights cool to about 18.4°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 94 mm of rain on roughly 14 days, which makes January a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 32 min on an average January day.

The nearest other city in this atlas is Brits (54 km away). In January its highs average 29.1°C, about as warm as Rustenburg, with 97 mm of rain.

Among the 95 cities listed in South Africa, Rustenburg ranks joint 19th of 95 for the warmest January highs and joint 27th of 95 for the driest January (rainfall, lowest first). The mean January high of those 95 cities is 27.0°C; Rustenburg is 1.8°C warmer than that mean.

From January to February, average highs fall by 0.2°C to 28.7°C, and monthly rainfall falls from 94 mm to 90 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

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

Every month, side by side

Rustenburg climate table

1991–2020

Monthly climate averages for Rustenburg, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	28.8°C18.4°C	18.4°C	94	14.2	13.514 h
February	28.7°C18.2°C	18.2°C	90	11.9	13.013 h
March	27.1°C16.6°C	16.6°C	70	10.4	12.312 h
April	24.5°C13.2°C	13.2°C	33	5.8	11.512 h
May	22.3°C9.2°C	9.2°C	17	2.2	10.911 h
June	19.7°C6.0°C	6.0°C	7.2	1.3	10.611 h
July	19.8°C5.5°C	5.5°C	2.9	0.6	10.711 h
August	23.1°C8.4°C	8.4°C	6.6	1.2	11.211 h
September	27.4°C12.5°C	12.5°C	14	1.8	11.912 h
October	28.9°C15.1°C	15.1°C	48	7.3	12.713 h
November	28.7°C16.4°C	16.4°C	73	11.2	13.313 h
December	28.7°C17.8°C	17.8°C	111	14.7	13.714 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

January in nearby cities

Distance from Rustenburg

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