Zanzibar weather by month
Zanzibar is warmest in February (32°C average high) and coolest in July (27°C). For warm, mostly dry weather, go July to September. The sea is warm enough for easy swimming all year.
Warmest month
February
32°C
Coolest month
July
27°C
Wettest month
April
391 mm
Flight from London
9h
direct, estimated
Planning a trip to Zanzibar?
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Zanzibar temperature by month
Tap a month for the detail and warmer alternatives.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 32°C | 26°C | 29°C | 64 mm |
| February | 32°C | 26°C | 30°C | 42 mm |
| March | 32°C | 26°C | 30°C | 105 mm |
| April | 29°C | 25°C | 29°C | 391 mm |
| May | 28°C | 25°C | 28°C | 209 mm |
| June | 28°C | 24°C | 28°C | 70 mm |
| July | 27°C | 23°C | 27°C | 47 mm |
| August | 28°C | 23°C | 26°C | 42 mm |
| September | 29°C | 23°C | 27°C | 46 mm |
| October | 29°C | 24°C | 27°C | 95 mm |
| November | 30°C | 25°C | 29°C | 115 mm |
| December | 31°C | 25°C | 30°C | 105 mm |
When to go to Zanzibar
What is the best month to visit Zanzibar for sun?
For warm, mostly dry days, go July to September, going by our 10-year averages.
What is the hottest month in Zanzibar?
February averages 32°C. July is the coolest at 27°C.
When does it rain most in Zanzibar?
April, with about 391 mm of rain.
When is the sea warm enough to swim in Zanzibar?
all year, when the sea averages 21°C or more.
Planning the trip? Start with our 3-day Zanzibar itinerary, and see the best time to visit Zanzibar for crowds and events.
How we measured this
Daily averages from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis); sea temperatures are 2023 to 2025 averages from the Open-Meteo marine archive. Rain is the average monthly total.
Going to Zanzibar?
Save the places you find on TikTok and Instagram for Zanzibar to one map, and Dream Trip will plan the days around them.
