For Koh Tao :
No gale warning.
The reliability of the situation is good.
Little cloud in the morning, sunny despite some high cloud in the afternoon. No precipitation. In the evening, skies with few clouds.
WNW force 4 turning SSE force 3 in the middle of the day then SE force 4. Smooth to slight sea becoming smooth in the evening. Low, short swell from WNW. Excellent visibility.