Current sea water temperature:
+82.8°F
| Minimum sea water temperature in December: | 86.0°F |
| Maximum sea water temperature in December: | 79.9°F |
| Average sea water temperature in December: | 82.9°F |
| more information | |
14 days
forecast
forecast
| Samui |
monthly
weather
weather
| Samui |
Sea water temperature for the last 10 days:
| December 26 | 82.8°F | December 21 | 82.0°F |
| December 25 | 83.1°F | December 20 | 81.9°F |
| December 24 | 82.8°F | December 19 | 82.0°F |
| December 23 | 82.2°F | December 18 | 81.7°F |
| December 22 | 82.2°F | December 17 | 81.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Samui?
Based on the data about daily sea water temperature for the last three years the warmest sea in Samui was noticed in May, April and June.
Monthly Sea Temperatures in Samui, °F
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 87.1°F. The highest and lowest sea temperatures during the month were 87.6°F and 86.5°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 86.4°F. The highest and lowest sea temperatures during the month were 88.3°F and 84.6°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 86.1°F. The highest and lowest sea temperatures during the month were 86.9°F and 85.1°F.
current
weather
weather
| Samui |
weather in
December
December
| Samui |
Best time for vacation in Samui
Samui on a weather map
Places in Thailand:
Name
°F
24 Hours Forecast
Samui
Local time: 18:38
December 26, friday
2100
79°F
W
2 mph
2 mph
December 27, saturday
0000
79°F
NW
2 mph
2 mph
0300
79°F
NW
2 mph
2 mph
0600
79°F
W
4 mph
4 mph
0900
81°F
W
8 mph
8 mph
1200
81°F
SW
11 mph
11 mph
1500
81°F
SW
14 mph
14 mph
1800
81°F
W
17 mph
17 mph
