For Koh Tao :
No gale warning.
The reliability of the situation is good.
Cloud and long sunny periods. Risk of showers in the morning, possibility of showers in the afternoon. In the evening, changeable skies with risk of storms.
Light showers. SW force 3 turning S force 2 in the middle of the day then W force 4. Smooth sea. Low, short swell from SSE. Good visibility becoming good in the middle of the day then excellent.