Swimming in Cape Town in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Cape Town in september 2025.
In september, according to seasonal norms, the sea temperature in Cape Town is:
Minimum: 58°F
Average: 60°F
Maximum: 62°F
Other useful seasonal weather averages in september:
- Outside temperature: 57°F to 66°F
- Most common weather: "Clear/Sunny"
- The wind blows at 8.1mph
- It rains a total of 3.3in, over 5 day(s).
Should we swim in Cape Town in september?
No... The water temperature in Cape Town in september is cold
Swimming in Cape Town in september is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average sea temperature of 60°F (minimum: 58°F - maximum: 62°F).
Note also that in september, the climate is good with an average outside temperature of 61°F, 3.3in of precipitation (over 5 days) and 78.37 % humidity.
Water and normal seasonal temperatures in Cape Town in september
| September | |||
| Average sea temperature | 60°F | ||
| Minimum sea temperature | 58°F | ||
| Maximum sea temperature | 62°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 58°F | ||
| Wind speed | 12.4mph | ||
| Wind temperature | 56°F | ||
| Precipitation | 3.3in | ||
| Number of days of rain | 5 jour(s) (16%) | ||
| Humidity | 79% | ||
| Visibility in kilometers | 9.52km | ||
| Cloud cover | 32% | ||
| Our opinion | cold swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Cape Town
Swim elsewhere in South Africa in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Durban in september | 72°F | 74°F | pleasant swimming | Port Elizabeth (South Africa) in september | 67°F | 70°F | cool swimming | Coffee Bay in september | 72°F | 74°F | pleasant swimming | East London in september | 70°F | 73°F | pleasant swimming | George in september | 62°F | 65°F | cold swimming | Margate in september | 72°F | 74°F | pleasant swimming | Port Nolloth in september | 58°F | 61°F | freezing swimming | Richards Bay in september | 73°F | 74°F | pleasant swimming | Ballito (Dolphin Coast) in september | 72°F | 74°F | pleasant swimming | Hermanus in september | 60°F | 62°F | cold swimming | Knysna in september | 63°F | 65°F | cool swimming | Mossel Bay in september | 62°F | 65°F | cold swimming | Plettenberg Bay in september | 63°F | 65°F | cool swimming |