18.08
tue
tue
Day
84°F
E 16 mph
Precip.
21%
21%
Night
84°F
E 15 mph
Precip.
22%
22%
19.08
wed
wed
Day
84°F
E 20 mph
Precip.
30%
30%
Night
84°F
E 19 mph
Precip.
20%
20%
20.08
thu
thu
Day
84°F
E 19 mph
Precip.
24%
24%
Night
84°F
E 17 mph
Precip.
24%
24%
21.08
fri
fri
Day
84°F
E 17 mph
Precip.
31%
31%
Night
84°F
NE 8 mph
Precip.
19%
19%
22.08
sat
sat
Day
84°F
E 8 mph
Precip.
47%
47%
Night
84°F
E 11 mph
Precip.
20%
20%
23.08
sun
sun
Day
84°F
E 13 mph
Precip.
21%
21%
Night
84°F
E 17 mph
Precip.
15%
15%
24.08
mon
mon
Day
82°F
E 17 mph
Precip.
66%
66%
Night
82°F
E 17 mph
Precip.
47%
47%
sea water
temperature
temperature
| Koh Lanta |
monthly
weather
weather
| Koh Lanta |
current
weather
weather
| Koh Lanta |
14 days
forecast
forecast
| Koh Lanta |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 86.7°F. The highest and lowest sea temperatures during the month were 87.4°F and 85.8°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 84.9°F. The highest and lowest sea temperatures during the month were 86.5°F and 83.7°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
Koh Lanta on a weather map
Places in Thailand:
Name
°F
24 Hours Forecast
Koh Lanta
Local time: 04:43
August 18, tuesday
0600
84°F
E
14 mph
14 mph
0900
82°F
E
14 mph
14 mph
1200
84°F
E
16 mph
16 mph
1500
84°F
E
17 mph
17 mph
1800
84°F
E
16 mph
16 mph
2100
84°F
E
14 mph
14 mph
August 19, wednesday
0000
84°F
E
15 mph
15 mph
0300
82°F
E
17 mph
17 mph
