29.12
mon
mon
Day
81°F
NW 7 mph
Precip.
0%
0%
Night
81°F
W 7 mph
Precip.
0%
0%
30.12
tue
tue
Day
81°F
NW 4 mph
Precip.
82%
82%
Night
81°F
NW 7 mph
Precip.
0%
0%
31.12
wed
wed
Day
81°F
W 3 mph
Precip.
0%
0%
Night
81°F
NW 8 mph
Precip.
0%
0%
01.01
thu
thu
Day
81°F
NW 4 mph
Precip.
100%
100%
Night
81°F
W 9 mph
Precip.
0%
0%
02.01
fri
fri
Day
81°F
W 4 mph
Precip.
0%
0%
Night
81°F
W 4 mph
Precip.
0%
0%
03.01
sat
sat
Day
81°F
SW 5 mph
Precip.
0%
0%
Night
81°F
W 8 mph
Precip.
0%
0%
04.01
sun
sun
Day
81°F
SW 8 mph
Precip.
0%
0%
Night
81°F
SW 6 mph
Precip.
55%
55%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 81.7°F. The highest and lowest sea temperatures during the month were 83.1°F and 80.8°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 81.6°F. The highest and lowest sea temperatures during the month were 82.4°F and 80.4°F.
Air temperature in Samui, °F
Precipitation total in Samui, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Samui
Samui on a weather map
Places in Thailand:
Name
°F
24 Hours Forecast
Samui
Local time: 01:48
December 29, monday
0300
81°F
NW
7 mph
7 mph
0600
81°F
NW
9 mph
9 mph
0900
81°F
W
9 mph
9 mph
1200
81°F
NW
7 mph
7 mph
1500
81°F
NW
7 mph
7 mph
1800
81°F
NW
7 mph
7 mph
2100
81°F
W
9 mph
9 mph
December 30, tuesday
0000
81°F
W
7 mph
7 mph
