Für Mentawai Islands :
No gale warning.
The reliability of the situation is good.
Fairly cloudless skies becoming changeable during the morning, very cloudy with possibility of thunder storms in the afternoon. Risk of some spots of rain in the morning, light showers in the afternoon. In the evening, lots of good clear periods.
Risk of showers in the early hours. SW force 1 becoming force 2 in the middle of the day then S force 1. Slight sea. Low, fairly long swell from SSW. Poor visibility becoming excellent in the middle of the day then poor.