For Zanzibar :
No gale warning.
The reliability of the situation is very good.
Stormy day. Showers all day. In the evening, changeable skies clouding over completely.
Possibility of showers SSW force 3 in the morning becoming S force 2 in the evening. Gusts reaching 12 knots until the middle of the day. Slight sea. Low, short swell from SE. Good visibility becoming excellent in the middle of the day then reduced by mist.