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Warmest sea temperatures in the world in December

Palopo tops the list at 30 °C in December. Ranked from 1991–2020 climate normals across 50 destinations.

# Destination Country Sea temp Avg high Rainfall
1 Palopo Indonesia 30 °C 29 °C 426 mm
2 Parepare Indonesia 30 °C 29 °C 325 mm
3 Baubau Indonesia 30 °C 29 °C 311 mm
4 Funafuti Tuvalu 30 °C 28 °C 300 mm
5 Probolinggo Indonesia 30 °C 29 °C 278 mm
6 Honiara Solomon Islands 30 °C 29 °C 328 mm
7 Pasuruan Indonesia 30 °C 29 °C 320 mm
8 Surabaya Indonesia 30 °C 30 °C 271 mm
9 Kupang Indonesia 30 °C 30 °C 231 mm
10 Dili Timor Leste 30 °C 31 °C 237 mm
11 Makassar Indonesia 30 °C 27 °C 438 mm
12 Ungaran Indonesia 30 °C 27 °C 463 mm
13 Semarang Indonesia 30 °C 29 °C 398 mm
14 Situbondo Indonesia 30 °C 29 °C 428 mm
15 Sorong Indonesia 30 °C 29 °C 342 mm
16 Gorontalo Indonesia 30 °C 30 °C 212 mm
17 Kendari Indonesia 30 °C 30 °C 310 mm
18 Pekalongan Indonesia 30 °C 29 °C 496 mm
19 Jepara Indonesia 30 °C 29 °C 448 mm
20 Pemalang Indonesia 30 °C 29 °C 460 mm
21 Tegal Indonesia 30 °C 29 °C 446 mm
22 Ambon Indonesia 29 °C 29 °C 166 mm
23 Plumbon Indonesia 29 °C 29 °C 362 mm
24 Cirebon Indonesia 29 °C 29 °C 350 mm
25 Macapá Brazil 29 °C 30 °C 126 mm
26 Yaren Nauru 29 °C 28 °C 224 mm
27 Balikpapan Indonesia 29 °C 28 °C 276 mm
28 Taiping Malaysia 29 °C 29 °C 270 mm
29 Jayapura Indonesia 29 °C 29 °C 301 mm
30 Mahajanga Madagascar 29 °C 31 °C 225 mm
31 Mata-Utu Wallis and Futuna 29 °C 28 °C 321 mm
32 Kapar Malaysia 29 °C 28 °C 313 mm
33 Labuan Bajo Indonesia 29 °C 28 °C 339 mm
34 Sitiawan Malaysia 29 °C 28 °C 318 mm
35 Shah Alam Malaysia 29 °C 28 °C 299 mm
36 Petaling Jaya Malaysia 29 °C 29 °C 284 mm
37 Bukit Mertajam Malaysia 29 °C 29 °C 259 mm
38 Bandar Seri Begawan Brunei 29 °C 29 °C 243 mm
39 Cotabato Philippines 29 °C 29 °C 181 mm
40 Paya Terubong Malaysia 29 °C 28 °C 190 mm
41 Ternate Indonesia 29 °C 28 °C 252 mm
42 Sepang Malaysia 29 °C 28 °C 275 mm
43 Pontianak Indonesia 29 °C 29 °C 368 mm
44 Bitung Indonesia 29 °C 29 °C 270 mm
45 General Santos Philippines 29 °C 30 °C 198 mm
46 Acapulco de Juárez Mexico 29 °C 30 °C 10 mm
47 Ngerulmud Palau 29 °C 28 °C 276 mm
48 Tarakan Indonesia 29 °C 28 °C 310 mm
49 Malacca Malaysia 29 °C 28 °C 227 mm
50 Cilegon Indonesia 29 °C 28 °C 291 mm

Only destinations with a published page for that month are ranked. The ranking is ours; the underlying values are reproduced from the source.

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.