Warmest seas - December

Ranking of world resorts by average sea temperature. Multi-year data - pick a month to compare.

#	Resort	Country	Average
1	Phu Quoc	Vietnam	29.4°C
2	Krabi	Thailand	29.2°C
3	Nungwi	Zanzibar	29.2°C
4	Phuket	Thailand	29.1°C
5	Male	Maldives	29.0°C
6	Paje	Zanzibar	28.9°C
7	Mahe	Seychelles	28.8°C
8	Bentota	Sri Lanka	28.7°C
9	Mombasa	Kenya	28.7°C
10	Diani Beach	Kenya	28.6°C
11	Koh Samui	Thailand	28.5°C
12	Mirissa	Sri Lanka	28.5°C
13	Natal	Brazil	28.4°C
14	Pattaya	Thailand	28.2°C
15	Playa del Carmen	Mexico	28.0°C
16	Punta Cana	Dominican Republic	27.8°C
17	Puerto Plata	Dominican Republic	27.7°C
18	Cancún	Mexico	27.6°C
19	Flic en Flac	Mauritius	27.5°C
20	Havana	Cuba	27.4°C
21	Nha Trang	Vietnam	26.1°C
22	Varadero	Cuba	25.3°C
23	Sharm el-Sheikh	Egypt	25.2°C
24	Safaga	Egypt	24.7°C
25	Abu Zabi	United Arab Emirates	24.7°C
26	Sal	Cape Verde	24.7°C
27	Dubaj	United Arab Emirates	24.6°C
28	Rio de Janeiro	Brazil	24.2°C
29	Hurghada	Egypt	23.9°C
30	Dahab	Egypt	23.9°C