Africa › Tanzania › Zanzibar
30-year normals (1991-2020)
Zanzibar has a tropical monsoon climate, classified as Am in the Köppen system. The warmest month is February with an average high of 31°C, while the coldest month is August with lows dropping to 22°C. The annual temperature range of 9°C indicates a relatively stable climate year-round.
The driest month is September with only 7 rain days and 23mm of precipitation. For travellers, September through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 82% to 82% throughout the year.
Based on temperature and rainfall data, the best months to visit Zanzibar are July, August, February. These months offer the most comfortable temperatures with relatively low rainfall, ideal for sightseeing and outdoor activities.
Full Best Time to Visit GuideWarmest Month
31°C
February
Coldest Month
22°C
August
Driest Month
7 days
September
Annual Range
9°C
22° to 31°
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 30°C | 26°C | 10 | 12h | View |
| February | 31°C | 26°C | 8 | 11h | View |
| March | 30°C | 26°C | 22 | 10h | View |
| April | 29°C | 25°C | 25 | 10h | View |
| May | 28°C | 24°C | 20 | 10h | View |
| June | 27°C | 23°C | 11 | 11h | View |
| July | 27°C | 23°C | 8 | 11h | View |
| August | 28°C | 22°C | 7 | 11h | View |
| September | 29°C | 23°C | 7 | 11h | View |
| October | 29°C | 24°C | 11 | 12h | View |
| November | 29°C | 25°C | 18 | 12h | View |
| December | 30°C | 25°C | 20 | 12h | View |
January
10 rain days, 12h sun
February
8 rain days, 11h sun
March
22 rain days, 10h sun
April
25 rain days, 10h sun
May
20 rain days, 10h sun
June
11 rain days, 11h sun
July
8 rain days, 11h sun
August
7 rain days, 11h sun
September
7 rain days, 11h sun
October
11 rain days, 12h sun
November
18 rain days, 12h sun
December
20 rain days, 12h sun
Zanzibar in February
Data Sources for Zanzibar
Climate normals represent 30-year averages (1991-2020). Individual years may vary.