25.12
thu
thu
Day
81°F
S 4 mph
Precip.
0%
0%
Night
81°F
N 1 mph
Precip.
0%
0%
26.12
fri
fri
Day
79°F
NW 11 mph
Precip.
100%
100%
Night
81°F
SW 9 mph
Precip.
77%
77%
27.12
sat
sat
Day
81°F
SW 12 mph
Precip.
100%
100%
Night
81°F
W 11 mph
Precip.
0%
0%
28.12
sun
sun
Day
81°F
W 10 mph
Precip.
66%
66%
Night
81°F
W 6 mph
Precip.
62%
62%
29.12
mon
mon
Day
81°F
SW 6 mph
Precip.
61%
61%
Night
81°F
W 4 mph
Precip.
0%
0%
30.12
tue
tue
Day
81°F
SW 6 mph
Precip.
67%
67%
Night
81°F
NW 6 mph
Precip.
100%
100%
31.12
wed
wed
Day
79°F
NW 7 mph
Precip.
25%
25%
Night
79°F
NW 11 mph
Precip.
100%
100%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 81.6°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: 21:52
December 26, friday
0000
81°F
N
1 mph
1 mph
0300
81°F
NE
1 mph
1 mph
0600
81°F
SW
1 mph
1 mph
0900
79°F
W
13 mph
13 mph
1200
79°F
NW
11 mph
11 mph
1500
79°F
W
11 mph
11 mph
1800
79°F
NW
6 mph
6 mph
2100
79°F
W
6 mph
6 mph
