World Beach Map

Where the sea is warmest in September

2,589 of 4,050 mapped beaches average 20 °C or more this month. Every figure is a measurement, not an estimate.

#BeachCountrySep °CWarmest month
1Inland Sea BeachQatar33.3Aug 34.1 °C
2Sealine BeachQatar33.2Aug 34.1 °C
3Jumeirah BeachUnited Arab Emirates32.7Aug 33.5 °C
4Black palace beachUnited Arab Emirates32.7Aug 33.5 °C
5Fuwairit BeachQatar32.7Aug 33.6 °C
6Al Maroona BeachQatar32.7Aug 33.6 °C
7Umm Bab BeachQatar32.6Aug 33.5 °C
8Ajman BeachUnited Arab Emirates32.5Aug 33.2 °C
9شاطئ الرملة البيضاءSaudi Arabia32.3Aug 33.3 °C
10Red BeachIran31.7Aug 32.6 °C
11Playa GirónCuba30Aug 30.2 °C
12Playa de GuayabitosMexico30Aug 30.3 °C
13Playa MajahuaMexico30Aug 30.4 °C
14Acapulco DiamanteMexico30Aug 30.4 °C
15Playa TlacopanochaMexico30Aug 30.4 °C
16Playa RevolcaderoMexico30Aug 30.4 °C
17Playa LangostaMexico30Aug 30.4 °C
18Playa El TamarindoEl Salvador30Aug 30.3 °C
19Playa Pie de La CuestaMexico30Aug 30.4 °C
20Playa AncónCuba30Sep 30 °C
21Playa ChacalaMexico30Aug 30.3 °C
22Paradise BeachCuba30Aug 30.2 °C
23Barra Vieja BeachMexico29.9Aug 30.4 °C
24Muara BeachBrunei29.9May 30.2 °C
25Playa San PanchoMexico29.9Aug 30.2 °C
26Playa de los MuertosMexico29.9Aug 30.2 °C
27Playa SayulitaMexico29.9Aug 30.2 °C
28Playa la RopaMexico29.9Aug 30.3 °C
29Playa Las GatasMexico29.9Aug 30.3 °C
30Hedonism ResortsJamaica29.8Sep 29.8 °C
31Los Muertos BeachMexico29.8Aug 30.1 °C
32Playa ZicatelaMexico29.8Aug 30.2 °C
33Doctor's Cave Beach ClubJamaica29.8Sep 29.8 °C
34Playa Conchas ChinasMexico29.8Aug 30.1 °C
35Pantai Seri KenanganBrunei29.8May 30.1 °C
36Tungku BeachBrunei29.8May 30.1 °C
37Penanjong BeachBrunei29.8May 30.1 °C
38Las Amapas BeachMexico29.8Aug 30.1 °C
39Rosita BeachMexico29.8Aug 30.1 °C
40Anse d'AzurHaiti29.8Sep 29.8 °C
41Tanjung Aru BeachMalaysia29.8Jun 30.2 °C
42Osuka BeachMalaysia29.8Jun 30.3 °C
43Playa SiboneyCuba29.8Sep 29.8 °C
44Playa DaiquiríCuba29.8Sep 29.8 °C
45Playa DamajayaboCuba29.8Sep 29.8 °C
46Yelapa BeachMexico29.8Aug 30.1 °C
47Playa Puerto AngelitoMexico29.8Aug 30.2 °C
48Playa Las ÁnimasMexico29.8Aug 30.1 °C
49Playa Punta ColoradaMexico29.8Aug 30.2 °C
50Playa CarrizalilloMexico29.8Aug 30.2 °C
51Batu FerringhiMalaysia29.7Jun 30.5 °C
52Seven Mile BeachUnited Kingdom29.7Aug 29.7 °C
53Morib BeachMalaysia29.7May 30.3 °C
54La VentanillaMexico29.7Aug 30 °C
55Bluefields BeachJamaica29.7Sep 29.7 °C
56Whitehouse BeachJamaica29.7Sep 29.7 °C
57MermejitaMexico29.7Aug 30 °C
58Tanjung RhuMalaysia29.7May 30.5 °C
59Belait BeachBrunei29.7Jun 30.1 °C
60Black Sand BeachMalaysia29.7May 30.5 °C
61Ocean View BeachJamaica29.7Sep 29.7 °C
62Playa Unión (Raa Bidxi)Mexico29.7Aug 30 °C
63Playa ZipoliteMexico29.7Aug 30 °C
64Rum Point BeachUnited Kingdom29.7Aug 29.7 °C
65Playa San AgustinilloMexico29.7Aug 30 °C
66Playa del AmorMexico29.7Aug 30 °C
67Monterrico BeachGuatemala29.7Aug 30.1 °C
68James Bond BeachJamaica29.6Sep 29.6 °C
69Talasari beachIndia29.6Jun 29.9 °C
70Puteri BeachMalaysia29.6May 30.3 °C
71Klebang BeachMalaysia29.6May 30.3 °C
72Treasure BeachJamaica29.6Sep 29.6 °C
73Tanjung Bidara BeachMalaysia29.6May 30.3 °C
74Pengkalan Balak BeachMalaysia29.6May 30.3 °C
75Reggae BeachJamaica29.6Sep 29.6 °C
76Font Hill BeachJamaica29.6Sep 29.6 °C
77Cenang BeachMalaysia29.6May 30.4 °C
78Madale BeachIndonesia29.6Apr 30.1 °C
79Pantai TengahMalaysia29.6May 30.4 °C
80Playa TortuguillaCuba29.6Sep 29.6 °C
81Las Salinas BaitiquiríCuba29.6Sep 29.6 °C
82Playa San DiegoEl Salvador29.6Aug 30 °C
83Romantic BeachMalaysia29.6Jun 30.4 °C
84Adam and Eve BeachMalaysia29.6Jun 30.4 °C
85Coral Bay BeachMalaysia29.6Jun 30.4 °C
86Playa la LloronaMexico29.6Aug 30 °C
87Playa MaruataMexico29.6Aug 30 °C
88Long BeachMalaysia29.6Jun 30.4 °C
89Sam Son BeachVietnam29.5Aug 30 °C
90Stump Pass Beach State ParkUnited States29.5Aug 30.1 °C
91Smathers BeachUnited States29.5Aug 30 °C
92Narathat BeachThailand29.5May 30.4 °C
93Hải Hòa BeachVietnam29.5Aug 30 °C
94জুনপুট সমুদ্র সৈকতIndia29.5Jun 29.8 °C
95Minyak Beku BeachMalaysia29.5May 30.3 °C
96Bang Hoi BeachThailand29.5May 30.5 °C
97Cabo Pulmo BeachMexico29.5Aug 29.5 °C
98Mayto BeachMexico29.5Aug 29.9 °C
99BlueKay BeachMexico29.5Sep 29.5 °C
100Bang SaenThailand29.4May 30.6 °C

Questions

Where is the sea warmest in September?

Inland Sea Beach, Qatar, at 33.3 °C, the highest September mean among the 4,050 beaches this atlas measures.

How many beaches are warm enough to swim in September?

2,589 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.