Current sea water temperature:
+87.3°F
| Minimum sea water temperature in May: | 90.1°F |
| Maximum sea water temperature in May: | 84.2°F |
| Average sea water temperature in May: | 87.4°F |
| more information | |
14 days
forecast
forecast
| Samui |
monthly
weather
weather
| Samui |
Sea water temperature for the last 10 days:
| May 16 | 87.3°F | May 11 | 87.1°F |
| May 15 | 87.3°F | May 10 | 87.3°F |
| May 14 | 87.1°F | May 9 | 87.3°F |
| May 13 | 86.5°F | May 8 | 86.9°F |
| May 12 | 86.9°F | May 7 | 87.4°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:
2026
2025
2024
The average sea water temperature in May of 2026 was 87.2°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:
2026
2025
2024
The average sea water temperature in April of 2026 was 86.8°F. The highest and lowest sea temperatures during the month were 87.6°F and 84.4°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
May
May
| Samui |
Best time for vacation in Samui
Samui on a weather map
Places in Thailand:
Name
°F
24 Hours Forecast
Samui
Local time: 06:31
May 17, sunday
0900
84°F
E
16 mph
16 mph
1200
84°F
E
20 mph
20 mph
1500
84°F
E
21 mph
21 mph
1800
84°F
E
24 mph
24 mph
2100
84°F
E
22 mph
22 mph
May 18, monday
0000
84°F
E
20 mph
20 mph
0300
84°F
E
16 mph
16 mph
0600
82°F
E
16 mph
16 mph
