Climate averages 1991–2020
Somaroboro weather
in December.
A warm, wet month: the 4th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Somaroboro: daytime highs average 27.3°C and nights cool to about 16.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 91 mm of rain on roughly 14 days, which makes December a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 41 min on an average December day.
The nearest other city in this atlas is Hammanskraal (55 km away). In December its highs average 29.0°C, 1.7°C warmer than Somaroboro, with 104 mm of rain.
Among the 95 cities listed in South Africa, Somaroboro ranks joint 36th of 95 for the warmest December highs and joint 26th of 95 for the driest December (rainfall, lowest first). The mean December high of those 95 cities is 26.6°C; Somaroboro is 0.6°C warmer than that mean.
From December to January, average highs rise by 0.2°C to 27.4°C, and monthly rainfall rises from 91 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
Somaroboro climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.4°C16.9°C | 16.9°C | 94 | 13.6 | 13.514 h |
| February | 27.4°C16.7°C | 16.7°C | 78 | 9.8 | 13.013 h |
| March | 26.0°C15.3°C | 15.3°C | 68 | 9.0 | 12.312 h |
| April | 23.7°C12.2°C | 12.2°C | 30 | 4.8 | 11.512 h |
| May | 21.5°C8.3°C | 8.3°C | 13 | 2.1 | 10.911 h |
| June | 19.0°C5.1°C | 5.1°C | 4.7 | 0.9 | 10.611 h |
| July | 19.0°C4.6°C | 4.6°C | 2.5 | 0.4 | 10.711 h |
| August | 22.4°C7.3°C | 7.3°C | 4.0 | 1.1 | 11.211 h |
| September | 26.5°C11.3°C | 11.3°C | 14 | 2.0 | 11.912 h |
| October | 27.4°C13.7°C | 13.7°C | 49 | 7.5 | 12.713 h |
| November | 26.9°C15.1°C | 15.1°C | 78 | 11.1 | 13.313 h |
| December, selected | 27.3°C16.4°C | 16.4°C | 91 | 13.8 | 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
- Hammanskraal in DecemberSouth Africa · 55 kmHigh 29.0°C · Low 17.9°C · 104 mm rain
- Emalahleni in DecemberSouth Africa · 71 kmHigh 24.6°C · Low 14.2°C · 123 mm rain
- Soshanguve in DecemberSouth Africa · 75 kmHigh 28.4°C · Low 17.6°C · 105 mm rain
- Bela Bela in DecemberSouth Africa · 76 kmHigh 28.7°C · Low 18.0°C · 114 mm rain
- Pretoria in DecemberSouth Africa · 79 kmHigh 27.3°C · Low 16.6°C · 113 mm rain
- Middelburg in DecemberSouth Africa · 79 kmHigh 25.3°C · Low 15.1°C · 114 mm rain
- Centurion in DecemberSouth Africa · 86 kmHigh 26.5°C · Low 16.0°C · 113 mm rain
- Ga-Rankuwa in DecemberSouth Africa · 89 kmHigh 28.0°C · Low 17.2°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 Somaroboro) is explained once on the Somaroboro year overview and on the Sources, method and limits page.