Weather in Zanzibar in September
September in Zanzibar is a hot month. Plan the serious walking for morning. The rest of the day wants shade and a slower pace.
In Tanzania, this is how Zanzibar actually wears September, not how a country centroid would. Compared with March and August, September sits in the middle of Zanzibar's year.

- Average temp
- 26°C
20–31°C
- Rainfall
- 21 mm
Not much rain
- Sunshine
- 8.6 h
hours per day
What to expect
Daytime
Hot days in Zanzibar. Ruins, markets and hills are a morning job. Midday sightseeing is how people remember September for the wrong reason.
Nights stay warm. Air-con, if you can get it, is part of the brief. A jumper for September in Zanzibar is almost always a waste of bag space.
Rain
Rain is not the story in Zanzibar in September. Pack for sun. A shower would be news, not a plan.
Do not build the trip around weather windows. Build it around shade if it is hot, and around getting outside if it is not.
Evening
Evenings stay warm.
What to pack
Sun protection
A layer for cooler evenings
Where to stay in Zanzibar
Dates are a starting point for September.

Travel guides for Zanzibar
What to read before you book.
Average weather in Zanzibar
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FAQs about Zanzibar
Climate averages for Zanzibar, 1991–2020.
The best time to visit Zanzibar is between June and October, the most comfortable stretch of the year on these averages.
January is the hottest month, with an average around 29°C.
April is the wettest month, with about 266 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
