For Koh Tao :
No gale warning.
The reliability of the situation is very good.
Good clear periods but cloud building. Chance of light rain. In the evening, very cloudy.
Chance of light rain. WSW force 4 in the middle of the day becoming W force 5 in the evening. Gusts reaching 21 knots in the evening. Smooth to slight sea. Low, short swell from S. Excellent visibility.