Measurements:
°C
°F
Koh Lanta
88°F
E 17 mph
Feels like: 98°F
Precip: 42%
World Resorts Thailand Koh Lanta Weather

Koh Lanta Sea Water Temperature

Current Sea Water Temperature:
+91.2°F
Maximum Sea Water Temperature in July: 92.4°F
Minimum Sea Water Temperature in July: 87.4°F
Average water temperature in July: 89.8°F

Sea Water Temperature for the Last 10 Days:

July 10 91.2°F July 05 89.6°F
July 09 91.0°F July 04 89.6°F
July 08 91.2°F July 03 91.0°F
July 07 90.4°F July 02 91.0°F
July 06 91.2°F July 01 90.4°F

When is the Warmest Sea for Koh Lanta?

According to our data for the last three years for Koh Lanta the highest average sea water temperature was in April, May and June.

Average Water Temperature by Month, °F

Sea Water Temperature in April

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Koh Lanta was 93.0°F. The maximum and minimum values were 90.8°F and 94.8°F respectively.

Sea Water Temperature in May

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Koh Lanta was 92.1°F. The maximum and minimum values were 90.4°F and 93.4°F respectively.

Sea Water Temperature in June

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Koh Lanta was 90.7°F. The maximum and minimum values were 88.8°F and 91.8°F respectively.

Best Time to Visit Koh Lanta
The most sunny months:
March 21 days
February 18 days
April 16 days
The most warm months:
April 92.3 °F
May 92.1 °F
March 92.0 °F
Warmest sea temperature:
April 91.5 °F
May 91.5 °F
June 90.4 °F
The most cold months:
November 89.5 °F
September 89.7 °F
December 89.7 °F
The most rainy months:
September 14 days
October 14 days
May 13 days
The most windy months:
September 11 mph
August 11 mph
July 11 mph

Koh Lanta on the Weather Map

Thailand Resorts:
NAME
Bang Tao Beach +86
Bangkok +94
Cape Panwa +86
Hua Hin +90
Karon Beach +86
Kata Beach +86
Khao Lak +86
Koh Chang +88
Nai Yang Beach +86
Pattaya +88
Phangan +90
Phi Phi +88
Phuket +86
Samet +88
Samui +90
24 Hours Weather Forecast
Koh Lanta
Local time: 19:07
10 jul, friday
2100 88°F
E
17 mph
11 jul, saturday
0000 88°F
E
16 mph
0300 88°F
E
17 mph
0600 88°F
E
19 mph
0900 88°F
E
17 mph
1200 88°F
E
19 mph
1500 88°F
E
20 mph
1800 88°F
E
19 mph