For Bintan :
No gale warning.
The reliability of the situation is good.
Skies very cloudy, risk of thundery outbreaks during the afternoon. Risk of some spots of rain in the morning, possibility of showers in the afternoon. In the evening, good clear periods but lots of cloud, too.
Chance of light rain. E force 2 becoming force 3 in the middle of the day then SE. Rippled sea becoming smooth in the middle of the day. Low, short swell from E. Good visibility becoming excellent in the middle of the day then good.