For Koh Tao :
No gale warning.
The reliability of the situation is good.
Cloudy spells, dense at times in the morning, skies clouding over with storms forming in the afternoon. Risk of showers in the morning, showers late in the day. In the evening, stormy but gradually improving.
Showers. WSW wind force 4 continuing all day. Gusts reaching 19 knots in the evening. Slight sea. Low, short swell from WNW. Excellent visibility.