Weather in Cape Town for August 2025
Until now, August 2025 in Cape Town is slightly cooler than the historical average by -1.4 °C.
The forecast for the next days in Cape Town predicts temperatures to be around 17 °C, close to the historical average.
In general, the average temperature in Cape Town at the beginning of August is 17.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 17.9 °C by the end of August.
Cape Town in August brings notable rainfall, with an average of 19 rainy days and a total precipitation of 82.4 mm.
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Cape Town Weather August
Temperatures trend during August in Cape Town
August weather in Cape Town day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Sunny | 16° /8° | 0 mm | 6 | |
| 2 Aug. |  Overcast | 19° /8° | 0 mm | 6 | |
| 3 Aug. | Sunny | 20° /10° | 0 mm | 6 | |
| 4 Aug. |  Light rain shower | 16° /10° | 5.7 mm | 5 | |
| 5 Aug. | Sunny | 16° /10° | 1.8 mm | 5 | |
| 6 Aug. | Sunny | 17° /9° | 0.1 mm | 5 | |
| 7 Aug. |  Partly cloudy | 17° /9° | 0 mm | 6 | |
| 8 Aug. | Patchy rain possible | 17° /10° | 4 mm | 5 | |
| 9 Aug. | Light rain shower | 16° /9° | 3.4 mm | 5 | |
| 10 Aug. | Sunny | 17° /9° | 4.8 mm | 5 | |
| 11 Aug. | Partly cloudy | 17° /9° | 0.4 mm | 5 | |
| 12 Aug. | Patchy rain possible | 15° /9° | 2.8 mm | 5 | |
| 13 Aug. | Sunny | 15° /8° | 3.6 mm | 5 | |
| 14 Aug. | Sunny | 15° /8° | 0.8 mm | 5 | |
| 15 Aug. | Sunny | 17° /7° | 0 mm | 5 | |
| 16 Aug. | Sunny | 19° /9° | 0.1 mm | 6 | |
| 17 Aug. | Patchy rain possible | 15° /10° | 9.4 mm | 4 | |
| 18 Aug. | Patchy rain possible | 17° /13° | 0.2 mm | 1 | |
| 19 Aug. | Patchy rain possible | 17° /13° | 1 mm | 0.4 | |
| 20 Aug. | Patchy rain possible | 17° /12° | 1.2 mm | 1.3 | |
| 21 Aug. | Patchy rain possible | 15° /12° | 1.9 mm | 4 | |
| 22 Aug. | Patchy rain possible | 15° /12° | 1.1 mm | 4 | |
| 23 Aug. | Patchy rain possible | 14° /11° | 2.4 mm | 4 | |
| 24 Aug. | Sunny | 14° /11° | 0 mm | 5 | |
| 25 Aug. | Sunny | 15° /9° | 0 mm | 5 | |
| 26 Aug. | Sunny | 16° /11° | 0 mm | 5 | |
| 27 Aug. | Sunny | 17° /12° | 0 mm | 5 | |
| 28 Aug. | Sunny | 19° /12° | 0 mm | 5 | |
| 29 Aug. | Sunny | 21° /14° | 0 mm | 6 | |
| 30 Aug. | Sunny | 18° /13° | 0 mm | 6 | |
| 31 Aug. | Sunny | 19° /9° | 2.7 mm | 5 | |
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Cape Town in August - FAQ
Cape Town water temperatures in August
The average water temperature of the Atlantic Ocean near Cape Town in August is 13.1 °C. At the beginning of August temperatures are around 13.2 °C; by the end of the month they stay fairly steady and reach 12.8 °C.
- What is the water temperature in Cape Town in August?
- The average water temperature in Cape Town in August is 13.1 °C.
- Can you swim in Cape Town in August?
- Cold enough that you lose heat fast. A full 4–5 mm wetsuit (plus hood/gloves for comfort) is advisable for anything beyond a brief plunge.
August rainfall patterns in Cape Town
UV exposure in Cape Town during August
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