For Btumbawe :
No gale warning.
The reliability of the situation is good.
Increasing clear spells. Skies becoming less cloudy in the afternoon. The risk of seeing rain will remain low. In the evening, relatively clear skies becoming changeable.
S force 3 in the morning temporarily SSE force 4 in the middle of the day. Gusts reaching 19 knots in the middle of the day. Slight sea. Low, short swell from ESE. Visibility reduced by fog becoming excellent in the middle of the day then poor.