Shoulder season. September is a solid shoulder-season choice for Zanzibar. In September, Zanzibar averages 25°C, with about 11 hours of sunshine a day and roughly 3.7 rainy days a week. Here's what those numbers mean for a trip.
That's close to Zanzibar's yearly average temperature. It delivers the most sunshine of any month here.
Pack layers — warm days, cooler evenings — plus light rain cover.
September is a solid shoulder-season choice for Zanzibar. It averages 25°C with 11 hours of sun a day and about 3.7 rainy days a week.
Zanzibar averages 25°C in September, based on roughly twenty years of climate records.
Expect about 3.7 rainy days a week in September, with 11 hours of sunshine a day on average.