Where the sea is warmest in December

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

#	Beach	Country	Dec °C	Warmest month
1	Mindil Beach	🇦🇺 Australia	30.8	Dec 30.8 °C
2	Lameroo Beach	🇦🇺 Australia	30.8	Dec 30.8 °C
3	Eighty Mile Beach	🇦🇺 Australia	30.1	Mar 30.8 °C
4	Valu Beach	🇹🇱 Timor-Leste	30.1	Dec 30.1 °C
5	Cable Beach	🇦🇺 Australia	30	Mar 30.4 °C
6	One Dollar Beach	🇹🇱 Timor-Leste	29.8	Dec 29.8 °C
7	Madale Beach	🇮🇩 Indonesia	29.8	Apr 30.1 °C
8	Cristo Rei beach	🇹🇱 Timor-Leste	29.7	Nov 29.8 °C
9	Bubble Beach	🇹🇱 Timor-Leste	29.7	Nov 29.8 °C
10	Areia Branca beach and hinterland	🇹🇱 Timor-Leste	29.7	Nov 29.8 °C
11	Bentar Beach	🇮🇩 Indonesia	29.7	Nov 29.9 °C
12	Pagatan Beach	🇮🇩 Indonesia	29.7	Apr 29.9 °C
13	Duta Beach	🇮🇩 Indonesia	29.7	Nov 29.9 °C
14	Pantai Akkarena	🇮🇩 Indonesia	29.6	Apr 29.7 °C
15	Angsana Beach	🇮🇩 Indonesia	29.6	Nov 29.9 °C
16	Jumiang Beach	🇮🇩 Indonesia	29.6	Nov 29.9 °C
17	Pantai Wayob	🇮🇩 Indonesia	29.6	Apr 29.6 °C
18	Pantai Indah Modisi	🇮🇩 Indonesia	29.6	Apr 29.6 °C
19	Modisi Beach	🇮🇩 Indonesia	29.6	Apr 29.6 °C
20	Pantai Widuri	🇮🇩 Indonesia	29.5	May 29.9 °C
21	Amban Beach	🇮🇩 Indonesia	29.5	Oct 29.7 °C
22	Lovina Beach	🇮🇩 Indonesia	29.4	Apr 29.5 °C
23	Kejawanan Beach	🇮🇩 Indonesia	29.4	May 29.9 °C
24	Category:Kemala Beach	🇮🇩 Indonesia	29.3	May 29.5 °C
25	Trikora	🇮🇩 Indonesia	29.3	Nov 29.6 °C
26	Batu Ferringhi	🇲🇾 Malaysia	29.1	Jun 30.5 °C
27	Barra Vieja Beach	🇲🇽 Mexico	29.1	Aug 30.4 °C
28	Pantai Senggigi	🇮🇩 Indonesia	29	Apr 29.4 °C
29	Puteri Beach	🇲🇾 Malaysia	29	May 30.3 °C
30	Klebang Beach	🇲🇾 Malaysia	29	May 30.3 °C
31	Playa Majahua	🇲🇽 Mexico	29	Aug 30.4 °C
32	Playa Tlacopanocha	🇲🇽 Mexico	29	Aug 30.4 °C
33	Medewi	🇮🇩 Indonesia	29	Apr 29.1 °C
34	Acapulco Diamante	🇲🇽 Mexico	29	Aug 30.4 °C
35	Playa Langosta	🇲🇽 Mexico	29	Aug 30.4 °C
36	Tanjung Bidara Beach	🇲🇾 Malaysia	29	May 30.3 °C
37	Category:Teluk Prancis Beach	🇮🇩 Indonesia	29	May 29.5 °C
38	Pantai Biru Kersik	🇮🇩 Indonesia	29	May 29.5 °C
39	Tanjung Aru Beach	🇲🇾 Malaysia	29	Jun 30.2 °C
40	Osuka Beach	🇲🇾 Malaysia	29	Jun 30.3 °C
41	Playa Pie de La Cuesta	🇲🇽 Mexico	29	Aug 30.4 °C
42	Padang Beach	🇮🇩 Indonesia	28.9	May 30.1 °C
43	Pantai Tanjung Aan	🇮🇩 Indonesia	28.9	Dec 28.9 °C
44	Air Manis beach	🇮🇩 Indonesia	28.9	May 30.1 °C
45	Pasir Panjang Beach	🇮🇩 Indonesia	28.9	May 30.2 °C
46	Ela Beach	🇵🇬 Papua New Guinea	28.9	Jan 29.3 °C
47	Pantai Carolina	🇮🇩 Indonesia	28.9	May 30.1 °C
48	Playa la Ropa	🇲🇽 Mexico	28.9	Aug 30.3 °C
49	Playa Las Gatas	🇲🇽 Mexico	28.9	Aug 30.3 °C
50	Monterrico Beach	🇬🇹 Guatemala	28.9	Aug 30.1 °C
51	Kappad	🇮🇳 India	28.8	Apr 29.8 °C
52	Muzhappilangad Beach	🇮🇳 India	28.8	Apr 29.8 °C
53	Sakouli	🇫🇷 France	28.8	Mar 29.5 °C
54	Sungai Suci Beach	🇮🇩 Indonesia	28.8	May 30 °C
55	Black Sand Beach	🇲🇾 Malaysia	28.8	May 30.5 °C
56	Tanjung Rhu	🇲🇾 Malaysia	28.8	May 30.5 °C
57	Tahiti plage	🇫🇷 France	28.8	Mar 29.5 °C
58	Cenang Beach	🇲🇾 Malaysia	28.8	May 30.4 °C
59	Meenkunnu Beach	🇮🇳 India	28.8	Apr 29.8 °C
60	Thottada Beach	🇮🇳 India	28.8	Apr 29.8 °C
61	Pantai Tengah	🇲🇾 Malaysia	28.8	May 30.4 °C
62	Sanur Beach	🇮🇩 Indonesia	28.7	Mar 28.8 °C
63	Pandawa Beach	🇮🇩 Indonesia	28.7	Mar 28.9 °C
64	Kozhikode Beach	🇮🇳 India	28.7	Apr 29.9 °C
65	Pantai Kuta	🇮🇩 Indonesia	28.7	Mar 28.9 °C
66	Cherai Beach	🇮🇳 India	28.7	Apr 30 °C
67	Fort Kochi beach	🇮🇳 India	28.7	Apr 30 °C
68	Marari Beach	🇮🇳 India	28.7	Apr 30 °C
69	Padang Padang Beach	🇮🇩 Indonesia	28.7	Mar 28.9 °C
70	Pak Meng beach	🇹🇭 Thailand	28.7	May 30.4 °C
71	Champagne Beach	🇻🇺 Vanuatu	28.7	Feb 29.3 °C
72	Tanjung Kelayang	🇮🇩 Indonesia	28.7	May 30.1 °C
73	Parai Tenggiri Beach	🇮🇩 Indonesia	28.7	May 30.1 °C
74	Plages de Moya	🇫🇷 France	28.7	Mar 29.5 °C
75	Plage du Préfet	🇫🇷 France	28.7	Mar 29.5 °C
76	Minyak Beku Beach	🇲🇾 Malaysia	28.7	May 30.3 °C
77	Kelingking Beach	🇮🇩 Indonesia	28.7	Mar 28.8 °C
78	Melasti Beach	🇮🇩 Indonesia	28.7	Mar 28.9 °C
79	Siloso Beach	🇸🇬 Singapore	28.7	May 30.3 °C
80	Arthunkal Beach	🇮🇳 India	28.7	Apr 30 °C
81	Palawan Beach	🇸🇬 Singapore	28.7	May 30.3 °C
82	Pantai Suluban	🇮🇩 Indonesia	28.7	Mar 28.9 °C
83	Tanjong Beach	🇸🇬 Singapore	28.7	May 30.3 °C
84	OBAFEMI AWOLOWO INSTITUTE BEACH FRONT	🇳🇬 Nigeria	28.7	May 29.2 °C
85	Broken Beach	🇮🇩 Indonesia	28.7	Mar 28.8 °C
86	Patong	🇹🇭 Thailand	28.6	May 29.9 °C
87	Railay Beach	🇹🇭 Thailand	28.6	May 30.3 °C
88	Alappuzha Beach	🇮🇳 India	28.6	Apr 30 °C
89	Karon Beach	🇹🇭 Thailand	28.6	May 29.9 °C
90	Hat Kata	🇹🇭 Thailand	28.6	May 29.9 °C
91	Azheekal Beach	🇮🇳 India	28.6	Apr 29.9 °C
92	Chavakkad Beach	🇮🇳 India	28.6	Apr 29.9 °C
93	Kamala beach	🇹🇭 Thailand	28.6	May 29.9 °C
94	Balekambang	🇮🇩 Indonesia	28.6	Apr 29.1 °C
95	Pantai Glagah Indah	🇮🇩 Indonesia	28.6	Mar 29 °C
96	Playa Zicatela	🇲🇽 Mexico	28.6	Aug 30.2 °C
97	Eleko Beach	🇳🇬 Nigeria	28.6	May 29.2 °C
98	Kata Noi beach	🇹🇭 Thailand	28.6	May 29.9 °C
99	Karang Bolong Beach	🇮🇩 Indonesia	28.6	Apr 29.1 °C
100	Rawai	🇹🇭 Thailand	28.6	May 30 °C

Questions

Where is the sea warmest in December?

Mindil Beach, Australia, at 30.8 °C — the highest December mean among the 2,330 beaches this atlas measures.

How many beaches are warm enough to swim in December?

950 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.