Climate averages 1991–2020
Rustenburg weather
in December.
A hot, wet month: the joint 3rd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Rustenburg: daytime highs average 28.7°C and nights cool to about 17.8°C. By daytime temperature it is the joint 3rd warmest of the 12 months.
Expect about 111 mm of rain on roughly 15 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 42 min on an average December day.
The nearest other city in this atlas is Brits (54 km away). In December its highs average 28.8°C, about as warm as Rustenburg, with 113 mm of rain.
Among the 95 cities listed in South Africa, Rustenburg ranks joint 18th of 95 for the warmest December highs and 47th of 95 for the driest December (rainfall, lowest first). The mean December high of those 95 cities is 26.6°C; Rustenburg is 2.0°C warmer than that mean.
From December to January, average highs rise by 0.2°C to 28.8°C, and monthly rainfall falls from 111 mm to 94 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages 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
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 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, selected | 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
December in nearby cities
- Brits in DecemberSouth Africa · 54 kmHigh 28.8°C · Low 17.9°C · 113 mm rain
- Krugersdorp in DecemberSouth Africa · 71 kmHigh 24.6°C · Low 14.1°C · 128 mm rain
- Randfontein in DecemberSouth Africa · 74 kmHigh 24.7°C · Low 14.3°C · 141 mm rain
- Ga-Rankuwa in DecemberSouth Africa · 76 kmHigh 28.0°C · Low 17.2°C · 105 mm rain
- Carletonville in DecemberSouth Africa · 79 kmHigh 26.2°C · Low 15.5°C · 136 mm rain
- Westonaria in DecemberSouth Africa · 83 kmHigh 25.5°C · Low 15.1°C · 141 mm rain
- Roodepoort in DecemberSouth Africa · 84 kmHigh 24.4°C · Low 13.9°C · 141 mm rain
- Soshanguve in DecemberSouth Africa · 89 kmHigh 28.4°C · Low 17.6°C · 105 mm rain
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 limitsHow 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.