Swimming in South Africa in september 2025 Sea temperature by city in september

In september in South Africa swimming conditions vary by city. Details below:

As for Durban, Coffee Bay, East London, Margate, Richards Bay, Ballito (Dolphin Coast), iSimangaliso Wetland Park, Port St Johns, Santa Lucia, Sodwana Bay, The Wild Coast and Port Shepstone, swimming is pleasant in september. The sea water is 72°F on average (min: 70°F/max: 74°F) so you can easily spend time in the water.

Swimming in september in Port Elizabeth (South Africa), Kenton-on-Sea, Knysna, St Francis Bay, Wilderness, Jeffrey's Bay, Plettenberg Bay and Port Alfred is possible but the sea is generally cool. So though the sea temperature may sometimes reach 70°F, it can also go as low as 64°F. Note that the average is 67°F.

Swimming in september in Cape Town, George, Agulhas National Park, Arniston, Cape of Good Hope, Cape Agulhas, Gansbaai, Groot-Jongensfontein, Hermanus, Pearly Beach, Still Bay, Witsand, Mossel Bay and Saldanha is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 60°F (min: 58°F/max: 62°F).

Forget about swimming in Port Nolloth, Hondeklip Bay, Kleinsee and Lepelsfontein in september! The water temperature is freezing, reaching as low as 55°F (and only 61°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!