World Beach Map

Where the sea is warmest in April

1,325 of 4,050 mapped beaches average 20 °C or more this month. Every figure is a measurement, not an estimate.

#BeachCountryApr °CWarmest month
1Pak Meng beachThailand30.3May 30.4 °C
2Tanjung RhuMalaysia30.3May 30.5 °C
3Black Sand BeachMalaysia30.3May 30.5 °C
4Prek Treng beachCambodia30.3May 30.6 °C
5Hun Sen beachCambodia30.3May 30.6 °C
6Independence beachCambodia30.3May 30.6 °C
7Ochheuteal BeachCambodia30.3May 30.6 °C
8Serendipity BeachCambodia30.3May 30.6 °C
9Railay BeachThailand30.2May 30.3 °C
10Bang SaenThailand30.2May 30.6 °C
11Bãi SaoVietnam30.2May 30.6 °C
12Cenang BeachMalaysia30.2May 30.4 °C
13Noppharat Thara BeachThailand30.2May 30.3 °C
14Klong Muang BeachThailand30.2May 30.3 °C
15Tubkaek BeachThailand30.2May 30.3 °C
16Pantai TengahMalaysia30.2May 30.4 °C
17Bãi Cửa CạnVietnam30.2May 30.5 °C
18Khlong Khong BeachThailand30.2May 30.3 °C
19Ba Kantiang BeachThailand30.2May 30.3 °C
20Klong Dao BeachThailand30.2May 30.3 °C
21Khlong Nin BeachThailand30.2May 30.3 °C
22Phra Ae BeachThailand30.2May 30.3 °C
23Relax Bay BeachThailand30.2May 30.3 °C
24Nai Phlao BeachThailand30.2May 30.5 °C
25Batu FerringhiMalaysia30.1Jun 30.5 °C
26Eighty Mile BeachAustralia30.1Mar 30.8 °C
27Hat Chao SamranThailand30.1May 30.6 °C
28Madale BeachIndonesia30.1Apr 30.1 °C
29Na Phralan BeachThailand30.1May 30.4 °C
30Hawaii beachCambodia30.1May 30.5 °C
31JomtienThailand30May 30.5 °C
32Alappuzha BeachIndia30Apr 30 °C
33Cable BeachAustralia30Mar 30.4 °C
34Cherai BeachIndia30Apr 30 °C
35Snehatheeram BeachIndia30Apr 30 °C
36Fort Kochi beachIndia30Apr 30 °C
37Marari BeachIndia30Apr 30 °C
38Padang BeachIndonesia30May 30.1 °C
39Munakkal BeachIndia30Apr 30 °C
40Hat Puek TianThailand30May 30.5 °C
41Cha-am beachThailand30May 30.5 °C
42Sai Ri beachThailand30May 30.2 °C
43Air Manis beachIndonesia30May 30.1 °C
44Pantai CarolinaIndonesia30May 30.1 °C
45Nirwana BeachIndonesia30May 30.1 °C
46ChawengThailand30May 30.3 °C
47Choeng MonThailand30May 30.3 °C
48Pattaya BeachThailand30May 30.5 °C
49Arthunkal BeachIndia30Apr 30 °C
50Tawaen BeachThailand30May 30.5 °C
51Tong Lang BeachThailand30May 30.5 °C
52Ta Yai BeachThailand30May 30.5 °C
53Samae BeachThailand30May 30.5 °C
54Chethi BeachIndia30Apr 30 °C
55Thiruvizha BeachIndia30Apr 30 °C
56Charankattu BeachIndia30Apr 30 °C
57Bang Hoi BeachThailand30May 30.5 °C
58Haad YaoThailand30May 30.3 °C
59Haad SonThailand30May 30.3 °C
60Silver BeachThailand30May 30.4 °C
61Andhakaranazhi BeachIndia30Apr 30 °C
62Anse LazioSeychelles29.9Apr 29.9 °C
63Azheekal BeachIndia29.9Apr 29.9 °C
64Anse source d´argentSeychelles29.9Apr 29.9 °C
65Kozhikode BeachIndia29.9Apr 29.9 °C
66Chavakkad BeachIndia29.9Apr 29.9 °C
67Radhanagar BeachIndia29.9Apr 29.9 °C
68Morib BeachMalaysia29.9May 30.3 °C
69Mindil BeachAustralia29.9Dec 30.8 °C
70Anse GeorgetteSeychelles29.9Apr 29.9 °C
71Lameroo BeachAustralia29.9Dec 30.8 °C
72RawaiThailand29.9May 30 °C
73Ujung Pandaran BeachIndonesia29.9Apr 29.9 °C
74Sungai Suci BeachIndonesia29.9May 30 °C
75Hua Hin beachThailand29.9May 30.4 °C
76Hat KhuatThailand29.9May 30.3 °C
77Pagatan BeachIndonesia29.9Apr 29.9 °C
78Chalok LamThailand29.9May 30.3 °C
79Nai Harn beachThailand29.9May 30 °C
80Ya NuiThailand29.9May 30 °C
81Long BeachThailand29.9May 30 °C
82Ao Sane BeachThailand29.9May 30 °C
83Anse BoudinSeychelles29.9Apr 29.9 °C
84Anse PossessionSeychelles29.9Apr 29.9 °C
85Anse FourmisSeychelles29.9Apr 29.9 °C
86KappadIndia29.8Apr 29.8 °C
87Varkala BeachIndia29.8Apr 29.8 °C
88Kollam BeachIndia29.8Apr 29.8 °C
89Muzhappilangad BeachIndia29.8Apr 29.8 °C
90NilaveliSri Lanka29.8May 30 °C
91Mai KhaoThailand29.8May 29.9 °C
92Anse IntendanceSeychelles29.8Apr 29.8 °C
93Angsana BeachIndonesia29.8Nov 29.9 °C
94Batakan BeachIndonesia29.8Apr 29.8 °C
95Bentar BeachIndonesia29.8Nov 29.9 °C
96Kejawanan BeachIndonesia29.8May 29.9 °C
97Duta BeachIndonesia29.8Nov 29.9 °C
98Thottada BeachIndia29.8Apr 29.8 °C
99Meenkunnu BeachIndia29.8Apr 29.8 °C
100Bang Thao beachThailand29.8May 29.9 °C

Questions

Where is the sea warmest in April?

Pak Meng beach, Thailand, at 30.3 °C, the highest April mean among the 4,050 beaches this atlas measures.

How many beaches are warm enough to swim in April?

1,325 of 4,050 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.