Climate averages 1991–2020
Centurion weather
in January.
A warm, wet month: one of the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Centurion: daytime highs average 26.7°C and nights cool to about 16.4°C. By daytime temperature it is one of the warmest months of the year.
Expect about 103 mm of rain on roughly 15 days, which makes January a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 33 min on an average January day.
The nearest other city in this atlas is Pretoria (13 km away). In January its highs average 27.6°C, 0.9°C warmer than Centurion, with 103 mm of rain.
Among the 95 cities listed in South Africa, Centurion ranks joint 44th of 95 for the warmest January highs and joint 47th of 95 for the driest January (rainfall, lowest first). The mean January high of those 95 cities is 27.0°C; Centurion is 0.3°C cooler than that mean.
From January to February, average highs fall by 0.1°C to 26.6°C, and monthly rainfall falls from 103 mm to 93 mm.
The annual picture
January 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
Centurion climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 26.7°C16.4°C | 16.4°C | 103 | 14.7 | 13.614 h |
| February | 26.6°C16.3°C | 16.3°C | 93 | 11.9 | 13.013 h |
| March | 25.3°C14.8°C | 14.8°C | 83 | 10.4 | 12.312 h |
| April | 22.8°C11.8°C | 11.8°C | 37 | 6.2 | 11.511 h |
| May | 20.8°C8.1°C | 8.1°C | 15 | 2.6 | 10.911 h |
| June | 18.4°C5.2°C | 5.2°C | 7.2 | 1.1 | 10.511 h |
| July | 18.6°C4.6°C | 4.6°C | 3.2 | 0.7 | 10.711 h |
| August | 21.7°C7.1°C | 7.1°C | 7.0 | 1.4 | 11.211 h |
| September | 25.8°C10.8°C | 10.8°C | 17 | 2.5 | 11.912 h |
| October | 26.7°C13.2°C | 13.2°C | 63 | 8.4 | 12.713 h |
| November | 26.3°C14.6°C | 14.6°C | 90 | 12.4 | 13.413 h |
| December | 26.5°C16.0°C | 16.0°C | 113 | 15.2 | 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
- Pretoria in JanuarySouth Africa · 13 kmHigh 27.6°C · Low 17.1°C · 103 mm rain
- Midrand in JanuarySouth Africa · 15 kmHigh 25.4°C · Low 15.1°C · 108 mm rain
- Thembisa in JanuarySouth Africa · 16 kmHigh 25.6°C · Low 15.4°C · 110 mm rain
- Randburg in JanuarySouth Africa · 32 kmHigh 25.5°C · Low 15.2°C · 108 mm rain
- Ga-Rankuwa in JanuarySouth Africa · 33 kmHigh 28.3°C · Low 17.7°C · 95 mm rain
- Benoni in JanuarySouth Africa · 39 kmHigh 25.0°C · Low 14.8°C · 127 mm rain
- Germiston in JanuarySouth Africa · 40 kmHigh 25.2°C · Low 15.0°C · 127 mm rain
- Etwatwa in JanuarySouth Africa · 40 kmHigh 25.2°C · Low 15.1°C · 123 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 Centurion) is explained once on the Centurion year overview and on the Sources, method and limits page.
Pretoria lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.