For Zanzibar :
No gale warning.
The reliability of the situation is good.
Very cloudy with risk of thundery outbreaks in the morning, then clear spells developing. Risk of showers in the morning, possibility of a few spots in the afternoon. In the evening, skies with few clouds.
ESE force 2 in the morning becoming E force 3 in the middle of the day. Gusts reaching 15 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.