Seasonal ranking

Coldest sea temperature in South Africa in September

Where the sea is coolest across South Africa during September, ranked by long-term monthly average water temperature. Camps Bay (Western Cape, South Africa) is the coolest at around 19°C. Open any spot for today's live water temperature and a 7-day swim forecast.

  1. 1
    Camps Bay
    Western Cape · South Africa · Atlantic Ocean
    Mild — fine for a swim, cool at first
    19°C
    September average
  2. 2
    Boulders Beach
    Western Cape · South Africa · Atlantic Ocean
    Mild — fine for a swim, cool at first
    19°C
    September average
  3. 3
    Robberg Beach
    Garden Route · South Africa · Indian Ocean
    Mild — fine for a swim, cool at first
    19°C
    September average
  4. 4
    Addington Beach
    KwaZulu-Natal · South Africa · Indian Ocean
    Mild — fine for a swim, cool at first
    19°C
    September average
  5. 5
    Muizenberg Beach
    Western Cape · South Africa · Indian Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  6. 6
    Umhlanga Beach
    KwaZulu-Natal · South Africa · Indian Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  7. 7
    Coffee Bay Beach
    Eastern Cape · South Africa · Indian Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  8. 8
    Jeffreys Bay
    Eastern Cape · South Africa · Indian Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average

Coldest sea in September elsewhere

South Africa in September — frequently asked questions

Where is the sea coldest in South Africa in September?
Camps Bay in South Africa has the coldest sea in South Africa in September, averaging about 19.0 °C. Boulders Beach (19.0 °C) and Robberg Beach are the next coolest.
How many beaches in South Africa are warm enough to swim in September?
None of the top 8 ranked beaches in South Africa reach 22 °C in September, so a wetsuit is recommended for anything longer than a quick dip.
How are these September sea temperatures calculated?
Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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