Where the sea is warmest in January

884 of 2,330 mapped beaches average 20 °C or more this month. Every figure is a measurement, not an estimate.

#	Beach	Country	Jan °C	Warmest month
1	Eighty Mile Beach	🇦🇺 Australia	30.5	Mar 30.8 °C
2	Mindil Beach	🇦🇺 Australia	30.3	Dec 30.8 °C
3	Lameroo Beach	🇦🇺 Australia	30.3	Dec 30.8 °C
4	Cable Beach	🇦🇺 Australia	30.2	Mar 30.4 °C
5	Valu Beach	🇹🇱 Timor-Leste	29.6	Dec 30.1 °C
6	Madale Beach	🇮🇩 Indonesia	29.6	Apr 30.1 °C
7	Padang Beach	🇮🇩 Indonesia	29.3	May 30.1 °C
8	Air Manis beach	🇮🇩 Indonesia	29.3	May 30.1 °C
9	Ela Beach	🇵🇬 Papua New Guinea	29.3	Jan 29.3 °C
10	Pantai Carolina	🇮🇩 Indonesia	29.3	May 30.1 °C
11	Bentar Beach	🇮🇩 Indonesia	29.3	Nov 29.9 °C
12	Duta Beach	🇮🇩 Indonesia	29.3	Nov 29.9 °C
13	Pantai Wayob	🇮🇩 Indonesia	29.3	Apr 29.6 °C
14	Amban Beach	🇮🇩 Indonesia	29.2	Oct 29.7 °C
15	Pagatan Beach	🇮🇩 Indonesia	29.2	Apr 29.9 °C
16	Pantai Indah Modisi	🇮🇩 Indonesia	29.2	Apr 29.6 °C
17	Modisi Beach	🇮🇩 Indonesia	29.2	Apr 29.6 °C
18	Champagne Beach	🇻🇺 Vanuatu	29.1	Feb 29.3 °C
19	Category:Kemala Beach	🇮🇩 Indonesia	29.1	May 29.5 °C
20	Angsana Beach	🇮🇩 Indonesia	29.1	Nov 29.9 °C
21	Jumiang Beach	🇮🇩 Indonesia	29.1	Nov 29.9 °C
22	Ifaty Beach	🇲🇬 Madagascar	29.1	Feb 29.3 °C
23	Lovina Beach	🇮🇩 Indonesia	29	Apr 29.5 °C
24	Batu Ferringhi	🇲🇾 Malaysia	29	Jun 30.5 °C
25	Medewi	🇮🇩 Indonesia	29	Apr 29.1 °C
26	One Dollar Beach	🇹🇱 Timor-Leste	29	Dec 29.8 °C
27	Pantai Akkarena	🇮🇩 Indonesia	29	Apr 29.7 °C
28	Plages de Moya	🇫🇷 France	29	Mar 29.5 °C
29	Sakouli	🇫🇷 France	29	Mar 29.5 °C
30	Tahiti plage	🇫🇷 France	29	Mar 29.5 °C
31	Anakao Beach	🇲🇬 Madagascar	29	Feb 29.2 °C
32	Dominical	🇨🇷 Costa Rica	28.9	Mar 29.8 °C
33	Pantai Widuri	🇮🇩 Indonesia	28.9	May 29.9 °C
34	Cristo Rei beach	🇹🇱 Timor-Leste	28.9	Nov 29.8 °C
35	Bubble Beach	🇹🇱 Timor-Leste	28.9	Nov 29.8 °C
36	Areia Branca beach and hinterland	🇹🇱 Timor-Leste	28.9	Nov 29.8 °C
37	Sungai Suci Beach	🇮🇩 Indonesia	28.9	May 30 °C
38	Category:Teluk Prancis Beach	🇮🇩 Indonesia	28.9	May 29.5 °C
39	Plage du Préfet	🇫🇷 France	28.9	Mar 29.5 °C
40	Pantai Biru Kersik	🇮🇩 Indonesia	28.9	May 29.5 °C
41	Playa Las Lajas	🇵🇦 Panama	28.9	Apr 29.4 °C
42	Pandawa Beach	🇮🇩 Indonesia	28.8	Mar 28.9 °C
43	Pantai Kuta	🇮🇩 Indonesia	28.8	Mar 28.9 °C
44	Padang Padang Beach	🇮🇩 Indonesia	28.8	Mar 28.9 °C
45	Pantai Glagah Indah	🇮🇩 Indonesia	28.8	Mar 29 °C
46	Trikora	🇮🇩 Indonesia	28.8	Nov 29.6 °C
47	Kejawanan Beach	🇮🇩 Indonesia	28.8	May 29.9 °C
48	Melasti Beach	🇮🇩 Indonesia	28.8	Mar 28.9 °C
49	Pantai Suluban	🇮🇩 Indonesia	28.8	Mar 28.9 °C
50	Sanur Beach	🇮🇩 Indonesia	28.7	Mar 28.8 °C
51	Pantai Senggigi	🇮🇩 Indonesia	28.7	Apr 29.4 °C
52	Pantai Batu Karas	🇮🇩 Indonesia	28.7	Apr 29.1 °C
53	Balekambang	🇮🇩 Indonesia	28.7	Apr 29.1 °C
54	Pantai Drini	🇮🇩 Indonesia	28.7	Mar 28.9 °C
55	pantai baron	🇮🇩 Indonesia	28.7	Mar 28.9 °C
56	Pantai Tanjung Aan	🇮🇩 Indonesia	28.7	Dec 28.9 °C
57	Pantai Goa Cina	🇮🇩 Indonesia	28.7	Mar 28.9 °C
58	Karang Bolong Beach	🇮🇩 Indonesia	28.7	Apr 29.1 °C
59	Pantai Clungup	🇮🇩 Indonesia	28.7	Mar 28.9 °C
60	Kukup Beach	🇮🇩 Indonesia	28.7	Mar 28.9 °C
61	Pantai Nguyahan	🇮🇩 Indonesia	28.7	Mar 28.9 °C
62	Kelingking Beach	🇮🇩 Indonesia	28.7	Mar 28.8 °C
63	Broken Beach	🇮🇩 Indonesia	28.7	Mar 28.8 °C
64	Zalala Beach	🇲🇿 Mozambique	28.7	Feb 29 °C
65	Pak Meng beach	🇹🇭 Thailand	28.6	May 30.4 °C
66	Tambor	🇨🇷 Costa Rica	28.6	Apr 29.4 °C
67	Barra Vieja Beach	🇲🇽 Mexico	28.6	Aug 30.4 °C
68	Chocas Mar	🇲🇿 Mozambique	28.6	Mar 29.2 °C
69	Praia Banana	🇸🇹 São Tomé and Príncipe	28.6	Mar 29.3 °C
70	Tambor Beach	🇨🇷 Costa Rica	28.6	Apr 29.4 °C
71	Santa Catalina Beach	🇵🇦 Panama	28.6	Apr 28.8 °C
72	Wimbe Beach	🇲🇿 Mozambique	28.6	Mar 29.2 °C
73	Cherai Beach	🇮🇳 India	28.5	Apr 30 °C
74	Fort Kochi beach	🇮🇳 India	28.5	Apr 30 °C
75	Marari Beach	🇮🇳 India	28.5	Apr 30 °C
76	Playa Majahua	🇲🇽 Mexico	28.5	Aug 30.4 °C
77	Playa Tlacopanocha	🇲🇽 Mexico	28.5	Aug 30.4 °C
78	Acapulco Diamante	🇲🇽 Mexico	28.5	Aug 30.4 °C
79	Playa Langosta	🇲🇽 Mexico	28.5	Aug 30.4 °C
80	Cenang Beach	🇲🇾 Malaysia	28.5	May 30.4 °C
81	Pantai Tengah	🇲🇾 Malaysia	28.5	May 30.4 °C
82	Arthunkal Beach	🇮🇳 India	28.5	Apr 30 °C
83	Playa San Miguel	🇨🇷 Costa Rica	28.5	Apr 29.4 °C
84	Playa La Islita	🇨🇷 Costa Rica	28.5	Apr 29.4 °C
85	Playa Pie de La Cuesta	🇲🇽 Mexico	28.5	Aug 30.4 °C
86	Patong	🇹🇭 Thailand	28.4	May 29.9 °C
87	Kappad	🇮🇳 India	28.4	Apr 29.8 °C
88	Karon Beach	🇹🇭 Thailand	28.4	May 29.9 °C
89	Hat Kata	🇹🇭 Thailand	28.4	May 29.9 °C
90	Kamala beach	🇹🇭 Thailand	28.4	May 29.9 °C
91	Ibeno Beach	🇳🇬 Nigeria	28.4	Apr 29.3 °C
92	Kata Noi beach	🇹🇭 Thailand	28.4	May 29.9 °C
93	Praia Inhame	🇸🇹 São Tomé and Príncipe	28.4	Mar 29.1 °C
94	Rawai	🇹🇭 Thailand	28.4	May 30 °C
95	Praia Pesqueira	🇸🇹 São Tomé and Príncipe	28.4	Mar 29.1 °C
96	Black Sand Beach	🇲🇾 Malaysia	28.4	May 30.5 °C
97	Tanjung Rhu	🇲🇾 Malaysia	28.4	May 30.5 °C
98	Bang Thao beach	🇹🇭 Thailand	28.4	May 29.9 °C
99	Nai Yang beach	🇹🇭 Thailand	28.4	May 29.9 °C
100	Nai Harn beach	🇹🇭 Thailand	28.4	May 30 °C

Questions

Where is the sea warmest in January?

Eighty Mile Beach, Australia, at 30.5 °C — the highest January mean among the 2,330 beaches this atlas measures.

How many beaches are warm enough to swim in January?

884 of 2,330 reach 20 °C or more as a monthly mean. Twenty degrees is the line used throughout this atlas, and it is stated rather than implied because a swimming season is an opinion dressed as a number unless the threshold is on the page.

Where do these numbers come from?

NOAA's OISST v2.1 monthly long-term mean for 1991 to 2020, on a 0.25° global grid, sampled at each beach's own coordinates. It is a satellite and buoy record, in the public domain, and nothing on this page is estimated or written by hand.