For Btumbawe :
No gale warning.
The reliability of the situation is good.
Skies very cloudy, risk of thundery outbreaks in the morning. Some light showers in the morning, possibility of showers in the afternoon. In the evening, very cloudy with risk of storms.
Risk of showers in the early hours. SW force 1 freshening SE force 3 in the middle of the day then force 2. Gusts reaching 12 knots in the evening. Slight sea. Low, short swell from ESE. Visibility reduced by mist becoming excellent in the middle of the day then reduced by mist.