For Zanzibar :
No gale warning.
The reliability of the situation is very good.
Changeable skies becoming less cloudy. Possibility of showers In the evening, skies with few clouds.
S force 4 in the middle of the day turning SE in the evening. Gusts reaching 19 knots in the evening. Slight sea. Low, short swell from ENE. Excellent visibility becoming good in the evening.