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Warmest sea temperatures in Africa in September: ranked by sea temperature

Port Sudan tops the list at 31 °C in September. Ranked from 1991–2020 climate normals across 50 destinations in Africa.

Top three in September: Port Sudan (31 °C) , Djibouti (31 °C) , Berbera (31 °C) . Between first and 50th place the sea temp differs by 5.3 °C.

# Destination Country Sea temp Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Port Sudan Sudan 31 °C 38 °C 27 °C 1 mm 0 330 h 31 °C
2 Djibouti Djibouti 31 °C 36 °C 29 °C 7 mm 2 347 h 31 °C
3 Berbera Somalia 31 °C 37 °C 29 °C 3 mm 1 343 h 31 °C
4 El Dibir Somalia 29 °C 33 °C 26 °C 2 mm 1 326 h 29 °C
5 Serekunda Gambia 29 °C 29 °C 25 °C 192 mm 20 296 h 29 °C
6 Banjul Gambia 29 °C 29 °C 25 °C 191 mm 20 297 h 29 °C
7 Arīsh Egypt 28 °C 30 °C 22 °C 0 mm 0 345 h 28 °C
8 Mbour Senegal 28 °C 30 °C 25 °C 110 mm 14 310 h 28 °C
9 Thiès Nones Senegal 28 °C 30 °C 24 °C 117 mm 14 313 h 28 °C
10 Thiès Senegal 28 °C 31 °C 24 °C 117 mm 14 313 h 28 °C
11 Saint-Louis Senegal 28 °C 31 °C 26 °C 62 mm 8 330 h 28 °C
12 Dakar Senegal 28 °C 29 °C 26 °C 95 mm 11 319 h 28 °C
13 Rufisque Senegal 28 °C 30 °C 25 °C 96 mm 12 318 h 28 °C
14 Bissau Guinea-Bissau 28 °C 29 °C 24 °C 306 mm 27 257 h 28 °C
15 Port Said Egypt 28 °C 30 °C 23 °C 0 mm 0 350 h 28 °C
16 Al Maţarīyah Egypt 28 °C 31 °C 23 °C 0 mm 0 351 h 28 °C
17 Hurghada Egypt 28 °C 33 °C 25 °C 0 mm 0 346 h 28 °C
18 Conakry Guinea 28 °C 27 °C 24 °C 477 mm 29 240 h 28 °C
19 Manéah Guinea 28 °C 28 °C 23 °C 469 mm 29 232 h 28 °C
20 Dubréka Guinea 28 °C 28 °C 23 °C 463 mm 29 233 h 28 °C
21 Nouakchott Mauritania 27 °C 34 °C 26 °C 19 mm 3 342 h 27 °C
22 Sfax Tunisia 27 °C 29 °C 23 °C 27 mm 3 337 h 27 °C
23 Damietta Egypt 27 °C 30 °C 23 °C 0 mm 0 351 h 27 °C
24 Idkū Egypt 27 °C 30 °C 22 °C 1 mm 0 355 h 27 °C
25 Praia Cabo Verde 27 °C 29 °C 25 °C 76 mm 9 318 h 27 °C
26 Freetown Sierra Leone 27 °C 26 °C 24 °C 495 mm 29 239 h 27 °C
27 Alexandria Egypt 27 °C 29 °C 22 °C 1 mm 0 355 h 27 °C
28 Az Zāwīyah Libya 27 °C 32 °C 23 °C 11 mm 2 346 h 27 °C
29 Victoria Seychelles 27 °C 26 °C 25 °C 118 mm 15 328 h 27 °C
30 Tripoli Libya 27 °C 31 °C 23 °C 10 mm 2 347 h 27 °C
31 Zliten Libya 27 °C 32 °C 22 °C 10 mm 1 347 h 27 °C
32 Misratah Libya 27 °C 29 °C 24 °C 7 mm 1 348 h 27 °C
33 Monrovia Liberia 27 °C 27 °C 23 °C 516 mm 29 243 h 27 °C
34 Malabo Equatorial Guinea 27 °C 27 °C 24 °C 379 mm 29 243 h 27 °C
35 Marsá Maţrūḩ Egypt 27 °C 30 °C 22 °C 1 mm 0 356 h 27 °C
36 Benghazi Libya 26 °C 30 °C 22 °C 2 mm 1 342 h 26 °C
37 Bata Equatorial Guinea 26 °C 27 °C 23 °C 263 mm 28 221 h 26 °C
38 Agege Nigeria 26 °C 28 °C 23 °C 180 mm 24 258 h 26 °C
39 Ajegunle Nigeria 26 °C 27 °C 24 °C 182 mm 24 263 h 26 °C
40 Ebute Ikorodu Nigeria 26 °C 28 °C 23 °C 202 mm 25 256 h 26 °C
41 Lagos Nigeria 26 °C 27 °C 24 °C 195 mm 25 260 h 26 °C
42 Mamoudzou Mayotte 26 °C 26 °C 23 °C 17 mm 5 353 h 26 °C
43 Sousse Tunisia 26 °C 31 °C 21 °C 49 mm 5 331 h 26 °C
44 São Tomé Sao Tome and Principe 26 °C 26 °C 25 °C 82 mm 11 292 h 26 °C
45 Porto-Novo Benin 26 °C 28 °C 24 °C 142 mm 22 267 h 26 °C
46 Zanzibar Tanzania 26 °C 29 °C 23 °C 23 mm 6 343 h 26 °C
47 Mahajanga Madagascar 26 °C 33 °C 22 °C 3 mm 1 347 h 26 °C
48 Moroni Comoros 26 °C 28 °C 23 °C 36 mm 9 356 h 26 °C
49 Tanga Tanzania 26 °C 28 °C 22 °C 48 mm 13 337 h 26 °C
50 Libreville Gabon 26 °C 28 °C 23 °C 142 mm 21 262 h 26 °C

Monthly values for the month named in the ranking; only destinations with a published climate page are ranked. Download this ranking as CSV.

The same ranking one month earlier and later

August: top 5

  1. Port Sudan 31 °C
  2. Djibouti 30 °C
  3. Berbera 29 °C
  4. Arīsh 29 °C
  5. El Dibir 29 °C

Full ranking for August

October: top 5

  1. Port Sudan 31 °C
  2. Djibouti 31 °C
  3. Berbera 30 °C
  4. Serekunda 29 °C
  5. Banjul 29 °C

Full ranking for October

How this ranking is built

What is ranked
The average sea surface temperature at the coast, in °C, in September, highest first.
Period
1991–2020 climate normals: the same 30 years for every destination, so the list compares like with like.
Who is included
50 destinations in Africa with a published climate page. Neighbouring places that share a climate series are shown once.
Ties
Equal values are ordered by beach score.
Sources
ERA5 / ERA5-Land reanalysis via Open-Meteo; sea temperature from NOAA OISST v2.1. Measured values are reproduced unchanged; only the ordering is ours.

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: ranking order, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.