Sea temperature and swimming season in South Africa

When the sea is warm enough to swim in 15 coastal cities in South Africa.

City	Warmest	Coldest	Swimming season
Cape Town	16.4°C Feb	14.3°C Apr	never comfortable
Durban	26.3°C Feb	21.1°C Aug	all year
Gqeberha	20.8°C Feb	17.0°C Jul	Dec – Mar (4 months)
East London	23.3°C Feb	19.8°C Sep	all year
Richards Bay	26.9°C Feb	21.5°C Aug	all year
Somerset West	18.7°C Feb	14.4°C Aug	never comfortable
George	21.8°C Feb	16.0°C Jul	Dec – Mar (4 months)
Mossel Bay	21.7°C Feb	15.8°C Jul	Dec – Mar (4 months)
Knysna	21.1°C Feb	16.7°C Aug	Dec – Mar (4 months)
Saldanha	16.3°C Feb	14.8°C Aug	never comfortable
Tongaat	25.9°C Feb	20.7°C Aug	all year
Plettenberg Bay	21.0°C Feb	16.8°C Aug	Dec – Mar (4 months)
Jeffreys Bay	20.4°C Feb	17.4°C Aug	Dec – Mar (4 months)
Port Alfred	20.4°C Feb	17.9°C Sep	Dec – May (6 months)
Port Saint John’s	26.0°C Feb	21.1°C Aug	all year