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Warmest sea in Thailand in October

89 coastal locations in Thailand ranked by their typical October sea temperature. Region-wide average in October: 29.4°C. The top of the list is where to find the warmest swimming this month.

Warmest in October

Mae Klong

29.9°C October mean in Thailand

Regional October average

29.4°C

across all 89 coastal locations in Thailand

Vs annual mean

-0.1°C

below the year-round regional average

What the Thailand sea feels like in October

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

Thailand monthly average 28.1°C to 30.7°C
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  • Warmest month May 30.7°C
  • Coldest month January 28.1°C
  • Annual mean 29.5°C
  • Months above 20°C 12 of 12

Where October fits in the year

October sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Thailand month rankings:

Thailand sea temperature map (live)

The map shows today's latest reading at every Thailand location. The list below is based on the typical October mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest Thailand locations in October

Sorted by the typical October mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location October mean
1 Mae Klong Chang Wat Samut Songkhram 29.9°C
2 Ban Mai 29.9°C
3 Ban Talat Yai 29.9°C
4 Bangkok Bar Central Thailand 29.8°C
5 Bangkok 29.8°C
6 Phra Pradaeng 29.8°C
7 Ko Si Chang 29.8°C
8 Si Racha 29.8°C
9 Bang Lamung 29.8°C
10 Jomtien Beach 29.8°C
11 Ko Lan 29.8°C
12 Pattaya 29.8°C
13 Ko Koi Noi Satun 29.7°C
14 Langkawi Chang Wat Satun 29.7°C
15 Sattahip 29.7°C
16 Hua Hin 29.7°C
17 Ko Lela Satun 29.7°C
18 Ko Don Ao Nang 29.6°C
19 Pak Nam Trang Chang Wat Trang 29.6°C
20 Ao Sattahip Chonburi 29.6°C
21 Chong Khram Ranong 29.6°C
22 Ko Phetra Malacca 29.6°C
23 Chong Samet Chumphon 29.6°C
24 Ao Muang Trat Chang Wat Trat 29.6°C
25 Laem Sing 29.6°C
Show 25 more ▸
26 Ko Butang Satun 29.5°C
27 Narathiwat 29.5°C
28 Pattani 29.5°C
29 Tak Bai 29.5°C
30 Yaring 29.5°C
31 Kantang 29.5°C
32 Ko Kut 29.5°C
33 Rayong 29.5°C
34 Samet 29.5°C
35 Ko Lipe 29.5°C
36 Ko Chang Tai 29.5°C
37 Ko Chang 29.5°C
38 Laem Ngop 29.5°C
39 Map Ta Phut 29.5°C
40 Ao Nang (Krabi) Chang Wat Krabi 29.5°C
41 Ko Lanta 29.4°C
42 Ko Mak 29.4°C
43 Ko Wai 29.4°C
44 Bangtao Beach 29.4°C
45 Ko Prap Surat Thani Province 29.4°C
46 Mai Khao Beach 29.4°C
47 Nai Yang Beach 29.4°C
48 Khanom Beach 29.4°C
49 Ao Nang 29.4°C
50 Ban Ao Nang 29.4°C

Coldest 10 in Thailand in October

Same data the other way. Helpful if you want to know which Thailand coasts to avoid for swimming in October.

# Location October mean
1 Ranong 28.8°C
2 Similan Islands 28.8°C
3 Surin Islands 28.8°C
4 Pak Nam Ranong Chang Wat Ranong 28.9°C
5 Ko Miang Phangnga 28.9°C
6 Ko Surin Phang-nga 28.9°C
7 Khao Lak 28.9°C
8 Chang Ko Phra Thong Phang-nga 28.9°C
9 Ko Tao 29.1°C
10 Cape Panwa 29.2°C

More on this region