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Warmest sea temperatures in the world in August: ranked by sea temperature

4 destinations share the top spot at 34 °C in August, listed by beach score, starting with Lusail. Ranked from 1991–2020 climate normals across 50 destinations in the world.

Top three in August: Lusail (34 °C) , Abu Dhabi (34 °C) , Doha (34 °C) . Between first and 50th place the sea temp differs by 4.0 °C.

# Destination Country Sea temp Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Lusail Qatar 34 °C 40 °C 29 °C 0 mm 0 376 h 34 °C
2 Abu Dhabi United Arab Emirates 34 °C 40 °C 30 °C 0 mm 0 371 h 34 °C
3 Doha Qatar 34 °C 41 °C 29 °C 0 mm 0 376 h 34 °C
4 Ar Rayyān Qatar 34 °C 42 °C 29 °C 0 mm 0 376 h 34 °C
5 Al Muharraq Bahrain 34 °C 36 °C 31 °C 0 mm 0 377 h 34 °C
6 Dubai United Arab Emirates 34 °C 43 °C 29 °C 1 mm 0 373 h 34 °C
7 Dammam Saudi Arabia 33 °C 40 °C 29 °C 0 mm 0 376 h 33 °C
8 Bushehr Iran 33 °C 37 °C 31 °C 0 mm 0 386 h 33 °C
9 Sharjah United Arab Emirates 33 °C 41 °C 30 °C 1 mm 0 374 h 33 °C
10 Al Jubayl Saudi Arabia 33 °C 41 °C 29 °C 0 mm 0 375 h 33 °C
11 Ras Al Khaimah United Arab Emirates 33 °C 39 °C 31 °C 0 mm 0 374 h 33 °C
12 Bandar Abbas Iran 33 °C 39 °C 30 °C 1 mm 0 377 h 33 °C
13 Al Aḩmadī Kuwait 32 °C 44 °C 31 °C 0 mm 0 375 h 32 °C
14 Ḩawallī Kuwait 32 °C 43 °C 31 °C 0 mm 0 375 h 32 °C
15 Port Sudan Sudan 31 °C 41 °C 29 °C 4 mm 1 358 h 31 °C
16 Jeddah Saudi Arabia 31 °C 35 °C 28 °C 0 mm 0 367 h 31 °C
17 Al Ḩudaydah Yemen 31 °C 37 °C 29 °C 29 mm 4 322 h 31 °C
18 Şabyā Saudi Arabia 31 °C 36 °C 29 °C 41 mm 5 333 h 31 °C
19 Muscat Oman 31 °C 36 °C 28 °C 1 mm 0 360 h 31 °C
20 Acapulco de Juárez Mexico 30 °C 30 °C 24 °C 277 mm 23 299 h 30 °C
21 Yanbu Saudi Arabia 30 °C 37 °C 28 °C 0 mm 0 384 h 30 °C
22 Ciudad Lázaro Cárdenas Mexico 30 °C 30 °C 25 °C 258 mm 21 314 h 30 °C
23 Los Mochis Mexico 30 °C 35 °C 27 °C 94 mm 12 351 h 30 °C
24 Alor Setar Malaysia 30 °C 30 °C 24 °C 235 mm 25 301 h 30 °C
25 Cape Coral United States 30 °C 31 °C 25 °C 152 mm 22 346 h 30 °C
26 Sungai Petani Malaysia 30 °C 30 °C 24 °C 211 mm 25 291 h 30 °C
27 Kota Kuala Muda Malaysia 30 °C 30 °C 25 °C 205 mm 24 291 h 30 °C
28 St. Petersburg United States 30 °C 30 °C 26 °C 155 mm 23 334 h 30 °C
29 Bandar Seri Begawan Brunei 30 °C 30 °C 25 °C 178 mm 20 311 h 30 °C
30 Bintulu Malaysia 30 °C 31 °C 24 °C 240 mm 24 292 h 30 °C
31 Puerto Vallarta Mexico 30 °C 31 °C 24 °C 321 mm 29 278 h 30 °C
32 Paya Terubong Malaysia 30 °C 29 °C 24 °C 204 mm 24 292 h 30 °C
33 George Town Malaysia 30 °C 30 °C 25 °C 206 mm 24 292 h 30 °C
34 Manzanillo Mexico 30 °C 30 °C 25 °C 254 mm 24 288 h 30 °C
35 Percut Indonesia 30 °C 30 °C 23 °C 257 mm 26 300 h 30 °C
36 Perbaungan Indonesia 30 °C 30 °C 24 °C 165 mm 22 304 h 30 °C
37 Taiping Malaysia 30 °C 30 °C 24 °C 178 mm 23 296 h 30 °C
38 Langsa Indonesia 30 °C 30 °C 24 °C 143 mm 21 300 h 30 °C
39 Mazatlán Mexico 30 °C 30 °C 25 °C 221 mm 21 304 h 30 °C
40 Pétionville Haiti 30 °C 31 °C 23 °C 180 mm 21 350 h 30 °C
41 Nghi Sơn Vietnam 30 °C 31 °C 26 °C 267 mm 20 266 h 30 °C
42 Thanh Hóa Vietnam 30 °C 31 °C 26 °C 314 mm 21 256 h 30 °C
43 Vinh Vietnam 30 °C 32 °C 26 °C 217 mm 17 275 h 30 °C
44 Saint-Marc Haiti 30 °C 32 °C 26 °C 88 mm 19 352 h 30 °C
45 Delmas Haiti 30 °C 33 °C 25 °C 175 mm 21 350 h 30 °C
46 Kota Kinabalu Malaysia 30 °C 29 °C 24 °C 195 mm 20 312 h 30 °C
47 Lhokseumawe Indonesia 30 °C 29 °C 25 °C 156 mm 22 298 h 30 °C
48 Miri Malaysia 30 °C 29 °C 25 °C 198 mm 23 306 h 30 °C
49 New Orleans United States 30 °C 31 °C 25 °C 157 mm 18 330 h 30 °C
50 Hat Yai Thailand 30 °C 31 °C 24 °C 128 mm 21 316 h 30 °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

July: top 5

  1. Abu Dhabi 33 °C
  2. Dubai 33 °C
  3. Sharjah 33 °C
  4. Lusail 33 °C
  5. Doha 33 °C

Full ranking for July

September: top 5

  1. Abu Dhabi 33 °C
  2. Lusail 33 °C
  3. Doha 33 °C
  4. Ar Rayyān 33 °C
  5. Dubai 33 °C

Full ranking for September

How this ranking is built

What is ranked
The average sea surface temperature at the coast, in °C, in August, 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 the world 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.