For Btumbawe :
No gale warning.
The reliability of the situation is good.
Cloud and sun in the morning, sunny in the afternoon. Risk of some spots of rain in the morning, no precipitation in the afternoon. In the evening, light cloudy spells.
SSW force 3 turning SSE force 4 in the middle of the day then becoming force 3. Gusts reaching 21 knots in the middle of the day. Slight sea. Low, short swell from ESE. Visibility reduced by mist becoming excellent in the middle of the day then poor.