World Resorts Thailand Ko Phangan Weather

Ko Phangan Sea Temperature in May

Average sea water temperature in May:
+87.4°F
Minimum sea water temperature in May: 90.1°F
Maximum sea water temperature in May: 83.8°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 86.9°F. The highest and lowest sea temperatures during the month were 87.6°F and 85.8°F.

Monthly sea water temperature in Ko Phangan, °F

Which Thailand resorts have warmest sea in May?

Place name May 2026 May 2025
Trat 88.7°F 87.9°F
Hat Yai 88.6°F 87.4°F
Koh Chang 88.5°F 87.7°F
Koh Lanta 88.5°F 86.6°F
Krabi 88.4°F 86.7°F
Phi Phi 88.4°F 86.7°F
Ko Wai 88.3°F 87.8°F
Cape Panwa 88.3°F 87.0°F
Rayong 88.2°F 87.9°F
Ko Li Pe 88.2°F 86.9°F
Phuket 88.2°F 86.6°F
Samet 88.2°F 88.0°F
Mai Khao Beach 88.2°F 86.4°F
Nai Yang Beach 88.1°F 86.4°F
Ko Mak 88.1°F 87.8°F
Kalim Beach 88.1°F 86.5°F
Surin Beach 88.1°F 86.5°F
Kamala Beach 88.1°F 86.5°F
Bang Tao Beach 88.1°F 86.5°F
Rawai Beach 88.1°F 86.7°F

Best time for vacation in Ko Phangan

Sunniest months:
April 17 days
May 14 days
March 14 days
Warmest months:
May 87.9 °F
June 87.2 °F
April 86.7 °F
Warmest sea temp:
May 87.4 °F
April 86.6 °F
June 86.4 °F
Coldest months:
January 82.8 °F
February 83.2 °F
December 83.5 °F
Rainiest months:
November 14 days
October 13 days
September 10 days
Windiest months:
July 13.1 mph
September 12.7 mph
August 12.2 mph

Ko Phangan on a weather map

Ko Phangan
+81°F
NE 19 mph
Feels like: +90°F
Precip.: 100%
Places in Thailand:
Name
°F
+88°F
+81°F
+81°F
+81°F
+84°F
+84°F
+84°F
+81°F
+84°F
+82°F
+82°F
+84°F
+86°F
24 Hours Forecast
Ko Phangan
Local time: 18:58
May 21, thursday
2100
82°F
NE
12 mph
May 22, friday
0000
84°F
NE
19 mph
0300
84°F
NE
19 mph
0600
84°F
NE
19 mph
0900
84°F
NE
20 mph
1200
84°F
NE
17 mph
1500
84°F
E
6 mph
1800
86°F
SE
9 mph
Units of measurement: °C / °F