Sea temperature at 4,050 beaches

Twelve monthly means per beach, from NOAA's OISST v2.1 climatology for 1991 to 2020, sampled at each beach's own coordinates. Nothing here is estimated.

Month by month

• January
• February
• March
• April
• May
• June
• July
• August
• September
• October
• November
• December

Warmest water on the atlas

#	Beach	Country	Warmest	Coolest	20 °C or more
1	Inland Sea Beach	Qatar	34.1 °C · Aug	19.3 °C	March to December
2	Sealine Beach	Qatar	34.1 °C · Aug	19.3 °C	March to December
3	Fuwairit Beach	Qatar	33.6 °C · Aug	19.4 °C	January, March, April, May, June, July, August, September, October, November and December
4	Al Maroona Beach	Qatar	33.6 °C · Aug	19.4 °C	January, March, April, May, June, July, August, September, October, November and December
5	Jumeirah Beach	United Arab Emirates	33.5 °C · Aug	21.5 °C	All year
6	Black palace beach	United Arab Emirates	33.5 °C · Aug	21.5 °C	All year
7	Umm Bab Beach	Qatar	33.5 °C · Aug	18.3 °C	March to December
8	شاطئ الرملة البيضاء	Saudi Arabia	33.3 °C · Aug	18.5 °C	April to December
9	Ajman Beach	United Arab Emirates	33.2 °C · Aug	21.9 °C	All year
10	Red Beach	Iran	32.6 °C · Aug	22.1 °C	All year
11	Eighty Mile Beach	Australia	30.8 °C · Mar	22.6 °C	All year
12	Mindil Beach	Australia	30.8 °C · Dec	25.8 °C	All year
13	Lameroo Beach	Australia	30.8 °C · Dec	25.8 °C	All year
14	Bang Saen	Thailand	30.6 °C · May	27.4 °C	All year
15	Hat Chao Samran	Thailand	30.6 °C · May	27.1 °C	All year
16	Bãi Sao	Vietnam	30.6 °C · May	27.8 °C	All year
17	Prek Treng beach	Cambodia	30.6 °C · May	28.1 °C	All year
18	Hun Sen beach	Cambodia	30.6 °C · May	28.1 °C	All year
19	Independence beach	Cambodia	30.6 °C · May	28.1 °C	All year
20	Ochheuteal Beach	Cambodia	30.6 °C · May	28.1 °C	All year
21	Serendipity Beach	Cambodia	30.6 °C · May	28.1 °C	All year
22	Jomtien	Thailand	30.5 °C · May	27.6 °C	All year
23	Batu Ferringhi	Malaysia	30.5 °C · Jun	29 °C	All year
24	Hat Puek Tian	Thailand	30.5 °C · May	27.1 °C	All year
25	Cha-am beach	Thailand	30.5 °C · May	27.1 °C	All year
26	Tanjung Rhu	Malaysia	30.5 °C · May	28.4 °C	All year
27	Black Sand Beach	Malaysia	30.5 °C · May	28.4 °C	All year
28	Pattaya Beach	Thailand	30.5 °C · May	27.6 °C	All year
29	Tawaen Beach	Thailand	30.5 °C · May	27.6 °C	All year
30	Tong Lang Beach	Thailand	30.5 °C · May	27.6 °C	All year
31	Ta Yai Beach	Thailand	30.5 °C · May	27.6 °C	All year
32	Samae Beach	Thailand	30.5 °C · May	27.6 °C	All year
33	Bang Hoi Beach	Thailand	30.5 °C · May	27.8 °C	All year
34	Bãi Cửa Cạn	Vietnam	30.5 °C · May	28 °C	All year
35	Hawaii beach	Cambodia	30.5 °C · May	28.2 °C	All year
36	Nai Phlao Beach	Thailand	30.5 °C · May	27.8 °C	All year
37	Cable Beach	Australia	30.4 °C · Mar	23.8 °C	All year
38	Pak Meng beach	Thailand	30.4 °C · May	28.6 °C	All year
39	Playa Majahua	Mexico	30.4 °C · Aug	27.5 °C	All year
40	Acapulco Diamante	Mexico	30.4 °C · Aug	27.5 °C	All year
41	Playa Tlacopanocha	Mexico	30.4 °C · Aug	27.5 °C	All year
42	Narathat Beach	Thailand	30.4 °C · May	27.6 °C	All year
43	Playa Revolcadero	Mexico	30.4 °C · Aug	27.5 °C	All year
44	Barra Vieja Beach	Mexico	30.4 °C · Aug	27.7 °C	All year
45	Playa Langosta	Mexico	30.4 °C · Aug	27.5 °C	All year
46	Cenang Beach	Malaysia	30.4 °C · May	28.5 °C	All year
47	Hua Hin beach	Thailand	30.4 °C · May	27.2 °C	All year
48	Pantai Tengah	Malaysia	30.4 °C · May	28.5 °C	All year
49	Romantic Beach	Malaysia	30.4 °C · Jun	27.6 °C	All year
50	Adam and Eve Beach	Malaysia	30.4 °C · Jun	27.6 °C	All year
51	Coral Bay Beach	Malaysia	30.4 °C · Jun	27.6 °C	All year
52	Playa Pie de La Cuesta	Mexico	30.4 °C · Aug	27.5 °C	All year
53	Na Phralan Beach	Thailand	30.4 °C · May	27.7 °C	All year
54	Silver Beach	Thailand	30.4 °C · May	27.8 °C	All year
55	Long Beach	Malaysia	30.4 °C · Jun	27.6 °C	All year
56	Railay Beach	Thailand	30.3 °C · May	28.3 °C	All year
57	Playa de Guayabitos	Mexico	30.3 °C · Aug	24.4 °C	All year
58	Morib Beach	Malaysia	30.3 °C · May	28.8 °C	All year
59	Puteri Beach	Malaysia	30.3 °C · May	28.3 °C	All year
60	Klebang Beach	Malaysia	30.3 °C · May	28.3 °C	All year
61	Tanjung Bidara Beach	Malaysia	30.3 °C · May	28.3 °C	All year
62	Pengkalan Balak Beach	Malaysia	30.3 °C · May	28.3 °C	All year
63	Chaweng	Thailand	30.3 °C · May	27.8 °C	All year
64	Hat Khuat	Thailand	30.3 °C · May	27.8 °C	All year
65	Minyak Beku Beach	Malaysia	30.3 °C · May	28.2 °C	All year
66	Choeng Mon	Thailand	30.3 °C · May	27.8 °C	All year
67	Noppharat Thara Beach	Thailand	30.3 °C · May	28.3 °C	All year
68	Klong Muang Beach	Thailand	30.3 °C · May	28.3 °C	All year
69	Tubkaek Beach	Thailand	30.3 °C · May	28.3 °C	All year
70	Chalok Lam	Thailand	30.3 °C · May	27.8 °C	All year
71	Sai Noi beach	Thailand	30.3 °C · May	27.3 °C	All year
72	Siloso Beach	Singapore	30.3 °C · May	28 °C	All year
73	Palawan Beach	Singapore	30.3 °C · May	28 °C	All year
74	Osuka Beach	Malaysia	30.3 °C · Jun	28 °C	All year
75	Haad Yao	Thailand	30.3 °C · May	27.7 °C	All year
76	Haad Son	Thailand	30.3 °C · May	27.7 °C	All year
77	Playa El Tamarindo	El Salvador	30.3 °C · Aug	27.7 °C	All year
78	Tanjong Beach	Singapore	30.3 °C · May	28 °C	All year
79	Khlong Khong Beach	Thailand	30.3 °C · May	28.5 °C	All year
80	Ba Kantiang Beach	Thailand	30.3 °C · May	28.5 °C	All year
81	Klong Dao Beach	Thailand	30.3 °C · May	28.5 °C	All year
82	Khlong Nin Beach	Thailand	30.3 °C · May	28.5 °C	All year
83	Phra Ae Beach	Thailand	30.3 °C · May	28.5 °C	All year
84	Relax Bay Beach	Thailand	30.3 °C · May	28.5 °C	All year
85	Playa la Ropa	Mexico	30.3 °C · Aug	27.2 °C	All year
86	Playa Las Gatas	Mexico	30.3 °C · Aug	27.2 °C	All year
87	Playa Chacala	Mexico	30.3 °C · Aug	24.4 °C	All year
88	Playa Girón	Cuba	30.2 °C · Aug	25.8 °C	All year
89	Playa Zicatela	Mexico	30.2 °C · Aug	28 °C	All year
90	Sai Ri beach	Thailand	30.2 °C · May	27.6 °C	All year
91	Pasir Panjang Beach	Indonesia	30.2 °C · May	28 °C	All year
92	Muara Beach	Brunei	30.2 °C · May	27.6 °C	All year
93	Tanjung Aru Beach	Malaysia	30.2 °C · Jun	27.3 °C	All year
94	Playa San Pancho	Mexico	30.2 °C · Aug	24.2 °C	All year
95	Playa de los Muertos	Mexico	30.2 °C · Aug	24.2 °C	All year
96	Playa Sayulita	Mexico	30.2 °C · Aug	24.2 °C	All year
97	หาดนมสาว	Thailand	30.2 °C · May	27.4 °C	All year
98	Playa Puerto Angelito	Mexico	30.2 °C · Aug	28 °C	All year
99	Playa Punta Colorada	Mexico	30.2 °C · Aug	28 °C	All year
100	Playa Carrizalillo	Mexico	30.2 °C · Aug	28 °C	All year

Coldest water on the atlas

#	Beach	Country	Warmest month
1	Ridley Beach		-1.1 °C in January
2	Recta		1.4 °C in February
3	Ojeda Beach		1.5 °C in February
4	Zagore Beach		1.5 °C in February
5	Liverpool Beach		1.5 °C in February
6	Arkutino Beach		1.5 °C in February
7	Pimpirev Beach		1.5 °C in February
8	Kladara Beach		1.5 °C in February
9	South Beaches		1.6 °C in February
10	Robbery Beaches		1.6 °C in February
11	John Beach		1.6 °C in February
12	Paul Beach	United Kingdom	3.7 °C in February
13	Stapavík	Iceland	9.5 °C in August
14	Fauskasandur	Iceland	9.5 °C in August
15	Hvalnesfjara	Iceland	9.9 °C in August
16	Rauðasandur Beach	Iceland	10.6 °C in August
17	Austurfjörur	Iceland	10.7 °C in August
18	Suðurfjörur	Iceland	10.8 °C in August
19	Plage du Moulin à Baude	Canada	11.3 °C in August
20	Langisandur	Iceland	11.3 °C in August
21	Plage de sable noir de Vík í Mýrdal	Iceland	11.5 °C in August
22	Ophir Beach	United States	11.5 °C in August
23	Reynisfjara	Iceland	11.5 °C in August
24	French Beach	Canada	11.8 °C in August
25	Sunset Beach	United States	11.9 °C in August