Updated: Thursday, 13 Aug 2026 04:24 PM SAST 
Day High Temp (°C) Low Temp (°C) Mean Temp (°C) Dewpoint Temp (°C) Humidity (%) Wind Speed (km/h) Precipitation (mm)
Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep.
Fri, Aug 14 22 +1.4 8 +2.0 15 +1.7 10 +2.8 48 -19.5 10 0 -0.8
Sat, Aug 15 31 -4.4 7 +2.9 19 -0.7 6 +2.5 23 -6.5 9 +2.0 -0.8
Sun, Aug 16 27 -3.6 9 +0.8 18 -1.4 5 +2.2 24 -11.6 10 +6.5 -0.8
Mon, Aug 17 26 -2.5 8 +1.8 17 -0.3 4 +1.9 25 -12.4 9 +9.0 -0.6
Tue, Aug 18 27 -2.5 9 +1.3 18 -0.6 8 +1.6 30 -15.9 20 +19.3 -1.0
Wed, Aug 19 24 -4.3 10 -1.1 17 -2.7 9 +2.4 41 -2.7 17 +5.1 --
Thu, Aug 20 24 -2.8 10 -0.1 17 -1.4 6 -4.9 33 -37.2 9 +12.4 --
Fri, Aug 21 19 -2.2 9 +0.9 14 -0.7 0 -0.1 29 -23.0 9 +10.1 -0.7
Sat, Aug 22 18 -1.3 8 +1.3 13 0 1 0 31 -17.6 16 +2.5 -0.7
Sun, Aug 23 20 -2.8 8 +1.5 14 -0.6 -4 -6.7 19 -35.9 5 +3.1 -0.7
Mon, Aug 24 22 -0.5 9 +1.4 15 +0.4 -8 -5.6 13 -41.2 8 0 -1.3
Tue, Aug 25 22 +0.5 10 +2.5 16 +1.5 -7 -1.8 14 -33.3 8 +3.0 --
Wed, Aug 26 23 0 10 +2.4 16 +1.2 -6 +4.9 15 -4.1 9 +1.6 -1.1
The values above are the forecast deviations from normal for the day. The deviations are derived from a 10-year average between 2001 and 2010 for Clanwilliam, South Africa.