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Coldest sea in Africa in September

748 coastal locations in Africa ranked by typical September sea temperature, coldest first. Region-wide average in September: 24.5°C.

Coldest in September

Marion Island

5.1°C September mean in South Africa

Regional September average

24.5°C

across all 748 coastal locations in Africa

Vs annual mean

+0.1°C

above the year-round regional average

What the Africa sea feels like in September

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

Africa monthly average 24.2°C to 24.9°C
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  • Warmest month November 24.9°C
  • Coldest month March 24.2°C
  • Annual mean 24.4°C
  • Months above 20°C 12 of 12

Where September fits in the year

September sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Africa month rankings:

Africa sea temperature map (live)

The map shows today's latest reading at every Africa location. The list below is based on the typical September mean.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 coldest Africa locations in September

Sorted by typical September mean from a decade of daily readings, coldest first. Click any place for the full location page.

# Location September mean
1 Marion Island Western Cape 5.1°C
2 Luderitz 11.6°C
3 Port Nolloth 12.2°C
4 Oranjemund Karas Region 12.4°C
5 Alexander Bay 12.8°C
6 Hondeklip Bay 13.2°C
7 Walvis Bay 13.3°C
8 Skeleton Bay 13.4°C
9 Swakopmund 13.4°C
10 Lamberts Bay Western Cape 13.5°C
11 Henties Bay Erongo Region 13.5°C
12 Wlotzkasbaken Erongo Region 13.5°C
13 Elands Bay 13.5°C
14 St Helena Bay 13.8°C
15 Velddrif 13.8°C
16 Tristan da Cunha Tristan da Cunha 13.8°C
17 Mile 72 Erongo Region 13.9°C
18 Mile 108 Erongo Region 13.9°C
19 Terrace Bay Kunene Region 13.9°C
20 Torra Bay Kunene Region 14.0°C
21 Buffels Bay Western Cape 14.2°C
22 Bloubergstrand 14.3°C
23 Camps Bay 14.3°C
24 Cape Town 14.3°C
25 Clifton 14.3°C
Show 25 more ▸
26 Sea Point 14.3°C
27 Sunset Beach 14.3°C
28 Paternoster 14.4°C
29 Langebaan 14.5°C
30 Big Bay Western Cape 14.6°C
31 Robben Island Western Cape 14.6°C
32 Table Bay Western Cape 14.6°C
33 Schrywers Hoek Western Cape 14.6°C
34 Schrywershoek Western Cape 14.6°C
35 Yzerfontein 14.6°C
36 Boulders Beach 14.6°C
37 Fish Hoek 14.6°C
38 Glencairn Beach 14.6°C
39 Hout Bay 14.6°C
40 Kalk Bay 14.6°C
41 Kommetjie 14.6°C
42 Melkbosstrand 14.6°C
43 Muizenberg 14.6°C
44 Noordhoek 14.6°C
45 Scarborough 14.6°C
46 Simon's Town 14.6°C
47 St James 14.6°C
48 Saldanha 14.8°C
49 Khayelitsha Western Cape 15.1°C
50 Llandudno Western Cape 15.1°C

Warmest 10 in Africa in September

Same data the other way. The warmest spots for the same month.

# Location September mean
1 Dahlac Archipelago 32.8°C
2 Bahir Dar 32.8°C
3 Lake Tana 32.8°C
4 Mits'iwa Northern Red Sea 32.8°C
5 Massawa 32.7°C
6 Edd 32.7°C
7 Harmil Island Northern Red Sea 32.7°C
8 Aseb Southern Red Sea 32.4°C
9 Assab 32.2°C
10 Sawakin Red Sea 31.8°C

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