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Hourly Forecast
Daylight Hours
06:44
Sunrise
18:33
Sunset
Moon
Waxing Crescent
08:48
Moonrise
23:10
Moonset
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Weather in Clanwilliam today, September 15, 2026
Rain features in Clanwilliam on September 15, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. The morning carries the wetter risk, with rain chances near 100% and the highest odds around 04:00. Cloud is also thick early on, peaking near 97% around 04:00.
Expect highs of 17°C and cooler readings close to 14°C. Relative humidity sits between 79% and 100%, reaching its peak around 04:00. A lighter breeze peaks around 11:00 near 4.1 km/h.
The second half of the day still looks unsettled, with rain probability around 98% by 12:00. Dense cloud near 96% at 23:00 keeps the feel grey. Expect visibility near 14.0 km, with poorer spells close to 0.1 km. The sun rises at 06:44 and sets at 18:33, for a total of 11 hours 48 minutes of sunlight today.
In short, treat September 15, 2026 in Clanwilliam as a damp day: pack covers, watch the wetter hours, and expect a high near 17°C.
Frequently asked questions about weather in Clanwilliam
How warm does it get in Clanwilliam?
The warmest month in Clanwilliam is February, with average high temperatures of 31°C. The average temperature during this period is around 24°C.
How cold does it get in Clanwilliam?
The coldest month in Clanwilliam is July, with average low temperatures of 5°C. The average temperature during this period is around 11°C.
What is the wettest time of year in Clanwilliam?
The wettest month in Clanwilliam is June, with an average of 83mm of precipitation.
What is the driest time of year in Clanwilliam?
The driest month in Clanwilliam is February, with an average of 5mm of precipitation.
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