World Resorts Thailand Koh Lanta Weather

Koh Lanta 7 Days Forecast

28.12
sun
Day
84°F
NW 9 mph
Precip.
0%
Night
79°F
W 14 mph
Precip.
0%
29.12
mon
Day
81°F
NW 6 mph
Precip.
0%
Night
79°F
SW 12 mph
Precip.
0%
30.12
tue
Day
81°F
E 4 mph
Precip.
0%
Night
79°F
SW 9 mph
Precip.
0%
31.12
wed
Day
82°F
NW 1 mph
Precip.
0%
Night
81°F
SW 4 mph
Precip.
100%
01.01
thu
Day
81°F
SW 1 mph
Precip.
0%
Night
81°F
NW 9 mph
Precip.
100%
02.01
fri
Day
82°F
E 4 mph
Precip.
0%
Night
79°F
SW 15 mph
Precip.
0%
03.01
sat
Day
84°F
W 12 mph
Precip.
0%
Night
79°F
SW 19 mph
Precip.
0%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 83.4°F. The highest and lowest sea temperatures during the month were 84.2°F and 82.8°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 83.2°F. The highest and lowest sea temperatures during the month were 84.0°F and 82.0°F.

Air temperature in Koh Lanta, °F

Precipitation total in Koh Lanta, in.

* Charts above show average data for the last 3 years.

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
December 85.7 °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
+81°F
W 14 mph
Feels like: +86°F
Precip.: 0%
Places in Thailand:
Name
°F
+79°F
+81°F
+79°F
+79°F
+81°F
+79°F
+79°F
+79°F
+79°F
+81°F
+79°F
+81°F
+81°F
+79°F
24 Hours Forecast
Koh Lanta
Local time: 08:37
December 28, sunday
0900
81°F
W
14 mph
1200
84°F
NW
9 mph
1500
84°F
W
7 mph
1800
82°F
SW
17 mph
2100
81°F
W
19 mph
December 29, monday
0000
79°F
W
14 mph
0300
79°F
W
11 mph
0600
79°F
W
11 mph
Units of measurement: °C / °F