Clanwilliam Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Clanwilliam.
Climate overview of Clanwilliam
The climate in Clanwilliam, Western Cape, South Africa, is marked by large temperature swings across the seasons, ranging from 32°C (90°F) in February to 19°C (66°F) in July.
With around 370 mm (15 in) of annual rainfall, Clanwilliam has a fairly dry climate. However, it has a distinct dry season from September to April. The wettest month is June, while February sees the least rain.
Clanwilliam Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Clanwilliam — and find the best time to visit.
Monthly Temperature in Clanwilliam
In Clanwilliam, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very warm 32°C (90°F) in February. In July, the coolest month of the year, temperatures drop to a pleasant 19°C (66°F).
At night, temperatures range from around 17°C (63°F) in February to 6°C (43°F) in July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Clanwilliam
Clanwilliam typically sees modest rainfall throughout the year, with an average annual precipitation of 370 mm (15 in). Clanwilliam can be quite wet during June, receiving approximately 72 mm (2.8 in) of precipitation over 8 rainy days.
In contrast, during the driest month (February), you will experience much drier conditions, with 8.2 mm (0.3 in) of precipitation spread across 2 rainy days days. For more details, please visit our Clanwilliam Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Clanwilliam
Frequently asked questions about the climate in Clanwilliam
What is the best time to visit Clanwilliam?
April, May, September, October and November typically offer the most optimal weather in Clanwilliam. In contrast, January, February, March, June, July, August and December tend to have less optimal conditions. Clanwilliam has a distinct dry season from September to April.
What temperatures can I expect in Clanwilliam?
Daytime highs range from 19°C (66°F) in July to 32°C (90°F) in February. Nighttime lows range from 6°C (43°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Clanwilliam get?
Annual rainfall is around 370 mm (15 in). June is the wettest month with 72 mm (2.8 in), while February is the driest with 8.2 mm (0.3 in).
Clanwilliam 3-Day Forecast
Clanwilliam 3-Day Forecast
Clanwilliam on the map
Clanwilliam is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Durban
23°C (73°F) Pretoria
21°C (70°F) Gqeberha20°C (68°F) Johannesburg20°C (68°F) Knysna19°C (66°F) Cape Town17°C (63°F) Hermanus
17°C (63°F) Stellenbosch
17°C (63°F) 
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