Cape Town weather in September
September is a fair month to visit Cape Town: highs of 17°C (62°F) and about 40 mm (1.6 in) of rain on average. Nights average 14°C (56°F) and cloud cover 40% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the 4th coolest. Compared with August, it is warmer and drier; October brings highs of 18°C (64°F) and 31 mm (1.2 in) of rain.
Is September a good time to visit Cape Town?
fair month Weather score 75/100.
September is a fair month in Cape Town. The weather is usually best in Nov–Apr.
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Does it rain a lot in Cape Town in September?
No, it is usually dry: about 40 mm (1.6 in) falls in an average September. It is the 5th wettest month of the year.
How warm is Cape Town in September?
Days average 17°C (62°F) and nights 14°C (56°F).
Cape Town weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 22°C (71°F) | 18°C (65°F) | 14 mm | 25% | best |
| February | 22°C (72°F) | 19°C (65°F) | 9 mm | 25% | best |
| March | 21°C (70°F) | 18°C (64°F) | 17 mm | 26% | best |
| April | 19°C (67°F) | 16°C (61°F) | 37 mm | 32% | best |
| May | 18°C (64°F) | 15°C (59°F) | 51 mm | 41% | fair |
| June | 16°C (62°F) | 14°C (57°F) | 91 mm | 41% | least pleasant |
| July | 16°C (60°F) | 13°C (56°F) | 81 mm | 38% | least pleasant |
| August | 16°C (60°F) | 13°C (55°F) | 76 mm | 41% | least pleasant |
| September | 17°C (62°F) | 14°C (56°F) | 40 mm | 40% | fair |
| October | 18°C (64°F) | 15°C (58°F) | 31 mm | 35% | fair |
| November | 19°C (66°F) | 16°C (60°F) | 30 mm | 32% | best |
| December | 21°C (69°F) | 17°C (63°F) | 12 mm | 27% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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