For Sumatra SE tips :
No gale warning.
The reliability of the situation is good.
Cloud and long sunny periods. Risk of some spots of rain in the morning, possibility of showers in the afternoon. In the evening, cloud and long sunny periods.
Chance of light rain. E wind force 3 continuing all day. Gusts reaching 16 knots in the middle of the day. Moderate sea becoming rough in the evening. Low, fairly long swell from S then moderate, long swell in the middle of the day then from SSW. Excellent visibility becoming poor in the evening.