Climate averages 1991–2020
Somerset West weather
in January.
A warm, fairly dry month: the 2nd warmest and the joint 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Somerset West: daytime highs average 27.2°C and nights cool to about 18.5°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 21 mm of rain on roughly 3 days, which makes January a fairly dry month (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 08 min on an average January day.
The nearest other city in this atlas is Stellenbosch (17 km away). In January its highs average 28.7°C, 1.6°C warmer than Somerset West, with 21 mm of rain.
Among the 95 cities listed in South Africa, Somerset West ranks 40th of 95 for the warmest January highs and joint 3rd of 95 for the driest January (rainfall, lowest first). The mean January high of those 95 cities is 27.0°C; Somerset West is 0.2°C warmer than that mean.
From January to February, average highs rise by 0.5°C to 27.6°C, and monthly rainfall falls from 21 mm to 18 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
Somerset West climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 27.2°C18.5°C | 18.5°C | 21 | 3.4 | 14.114 h |
| February | 27.6°C18.8°C | 18.8°C | 18 | 3.2 | 13.313 h |
| March | 26.2°C17.8°C | 17.8°C | 21 | 3.5 | 12.312 h |
| April | 23.4°C15.4°C | 15.4°C | 56 | 5.7 | 11.311 h |
| May | 20.4°C13.2°C | 13.2°C | 90 | 9.0 | 10.410 h |
| June | 17.7°C10.8°C | 10.8°C | 138 | 11.0 | 9.910 h |
| July | 17.3°C9.9°C | 9.9°C | 122 | 10.3 | 10.110 h |
| August | 17.4°C10.2°C | 10.2°C | 105 | 10.9 | 10.911 h |
| September | 19.0°C11.4°C | 11.4°C | 68 | 8.8 | 11.912 h |
| October | 21.5°C13.4°C | 13.4°C | 45 | 6.6 | 12.913 h |
| November | 23.1°C15.0°C | 15.0°C | 41 | 5.8 | 13.914 h |
| December | 25.6°C17.2°C | 17.2°C | 24 | 4.2 | 14.414 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
- Stellenbosch in JanuarySouth Africa · 17 kmHigh 28.7°C · Low 17.0°C · 21 mm rain
- Cape Town in JanuarySouth Africa · 41 kmHigh 25.6°C · Low 17.5°C · 15 mm rain
- Paarl in JanuarySouth Africa · 41 kmHigh 30.9°C · Low 17.5°C · 21 mm rain
- Atlantis in JanuarySouth Africa · 65 kmHigh 26.9°C · Low 16.1°C · 9.8 mm rain
- Worcester, South Africa in JanuarySouth Africa · 76 kmHigh 30.9°C · Low 17.2°C · 24 mm rain
- Mossel Bay in JanuarySouth Africa · 306 kmHigh 24.4°C · Low 17.9°C · 38 mm rain
- Oudtshoorn in JanuarySouth Africa · 317 kmHigh 29.6°C · Low 15.8°C · 30 mm rain
- George in JanuarySouth Africa · 336 kmHigh 23.4°C · Low 16.5°C · 51 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 Somerset West) is explained once on the Somerset West year overview and on the Sources, method and limits page.
Stellenbosch lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.