For Similans :
No gale warning.
The reliability of the situation is good.
Good clear periods but with plenty of cloud in the morning, sun and storm clouds in the afternoon. Some light showers in the morning, showers late in the day. In the evening, lots of good clear periods.
Possibility of showers ESE force 1 turning NNW in the middle of the day then WSW. Gusts reaching 7 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from SW. Good visibility becoming excellent in the evening.