World Resorts Thailand Koh Lanta Weather

Koh Lanta Sea Temperature in May

Average sea water temperature in May:
+87.3°F
Minimum sea water temperature in May: 90.5°F
Maximum sea water temperature in May: 82.9°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 86.6°F. The highest and lowest sea temperatures during the month were 88.0°F and 85.5°F.

Monthly sea water temperature in Koh Lanta, °F

Which Thailand resorts have warmest sea in May?

Place name May 2025 May 2024
Samet 88.0°F 89.0°F
Trat 87.9°F 89.3°F
Rayong 87.9°F 89.1°F
Ko Wai 87.8°F 89.4°F
Ko Mak 87.8°F 89.2°F
Koh Kood 87.7°F 89.2°F
Koh Chang 87.7°F 89.7°F
Hua Hin 87.7°F 88.6°F
Cha-am 87.6°F 88.9°F
Hat Yai 87.4°F 89.5°F
Bangkok 87.3°F 88.5°F
Jomtien 87.3°F 88.8°F
Koh Lan 87.3°F 88.8°F
Pattaya 87.3°F 88.8°F
Phangan 87.2°F 88.8°F
Ko Phangan 87.2°F 88.8°F
Lamai Beach 87.2°F 89.0°F
Chumphon 87.2°F 89.1°F
Pattani 87.1°F 88.6°F
Samui 87.1°F 89.0°F

Best time for vacation in Koh Lanta

Sunniest months:
March 21 days
February 18 days
April 16 days
Warmest months:
April 88.2 °F
May 88.1 °F
March 88.0 °F
Warmest sea temp:
April 87.3 °F
May 87.3 °F
June 86.3 °F
Coldest months:
November 85.6 °F
September 85.7 °F
October 85.8 °F
Rainiest months:
September 14 days
October 14 days
May 13 days
Windiest months:
September 11.7 mph
August 11.1 mph
July 11.0 mph

Koh Lanta on a weather map

Koh Lanta
+84°F
SW 7 mph
Feels like: +90°F
Precip.: 0%
Places in Thailand:
Name
°F
+90°F
+86°F
+84°F
+84°F
+82°F
+84°F
+86°F
+84°F
+84°F
+82°F
+84°F
+82°F
+86°F
+82°F
24 Hours Forecast
Koh Lanta
Local time: 11:09
December 21, sunday
1200
84°F
SW
7 mph
1500
86°F
SW
5 mph
1800
84°F
SW
16 mph
2100
81°F
SW
14 mph
December 22, monday
0000
79°F
SW
11 mph
0300
79°F
SW
11 mph
0600
77°F
SW
11 mph
0900
79°F
SW
9 mph
Units of measurement: °C / °F