Zanzibar in september: average Weather, Temperature and Climate, Where to go?
Weather in Zanzibar in september 2025
Below, you have access to the weather forecast for september for most popular cities in Zanzibar. These forecasts are probabilities for the month of september from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.
Average weather in september in Stone Town
good weather UV index: 7
Weather at 6am
76°F
Moderate rain at times
43% of time
26%
22%
8%
Weather at 12pm
83°F
Moderate rain at times
48% of time
34%
16%
3%
Weather at 6pm
81°F
Clear/Sunny
72% of time
15%
14%
1%
Weather at 3am
77°F
43%
23%
18%
17%
More information about the weather in Stone Town in september
Where to go in Zanzibar in september?
Where to go in Zanzibar in september: destination map
Where to go in each region in september?
| Mafia (Kilindoni (Mafia Island), Utende, Chole Bay...) | 86°F | 3 days | 79°F | good weather |
| Pemba (Wete (Pemba Island), Chake Chake, Mkoani...) | 81°F | 4 days | 79°F | good weather |
| Unguja (Stone Town, Nungwi (Unguja Island), Jambiani...) | 83°F | 4 days | 79°F | good weather |
Where should you go in Zanzibar in september when it comes to the weather?
Remember:
The climate in Zanzibar in september is good across the board.
September is not the best month to go to in Zanzibar. The weather everywhere is ok but correct: in Wete (Pemba Island), Kendwa, Chake Chake, Matemwe, Jambiani, Nungwi (Unguja Island), Uroa and Fumba. The sun is not there all the time and you risk you to be soaked by rain often. However, if you don't plan a deckchair & cocktails by the pool travel but rather discovery of heritage or hiking, this climate may be enough. In addition, there are certainly fewer tourists dyring this month of september.
Climate in Zanzibar in september
Climate in Stone Town in september
In the month of september, the mean temperature in Stone Town is 79°F (maximum temperature is 83°F and minimum temperature is 76°F). The climate is pleasant in that area in this month. With 3in over 4 days, you will experience some showers throughout your stay. But this is moderate and it will not be continuous.
With a good climate, september is a good month to go in Stone Town in Zanzibar.
| September | |||
| Average temperature | 79°F | ||
| Highest temperature | 83°F | ||
| Lowest temperature | 76°F | ||
| Sea temperature | 79°F | ||
| Rainfall | 3in | ||
| Number of days with rainfall | 4 day(s) (12%) | ||
| Humidity | 83% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 34% | ||
| Length of day | 12:04 | ||
| Our opinion at whereandwhen.net | good |
Climate in Nungwi (Unguja Island) in september
In the month of september, the mean temperature in Nungwi (Unguja Island) is 79°F (maximum temperature is 83°F and minimum temperature is 76°F). The climate is very warm in that locality in the month of september. With 3in over 4 days, you will experience some showers for your holidays. But this is reasonably and it is only of temporary showers.
With proper weather, september is okay (but not good time) for traveling in that area.
| September | |||
| Average temperature | 79°F | ||
| Highest temperature | 83°F | ||
| Lowest temperature | 76°F | ||
| Sea temperature | 79°F | ||
| Rainfall | 3in | ||
| Number of days with rainfall | 4 day(s) (12%) | ||
| Humidity | 83% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 34% | ||
| Length of day | 12:04 | ||
| Our opinion at whereandwhen.net | good |
Climate in Wete (Pemba Island) in september
In september, maximum temperature is 81°F and minimum temperature is 77°F (for an average temperature of 79°F). The climate is quite good in that locality in the month of september. With 3.2in over 4 days, you will experience some showers throughout your stay. But this is rather moderate and it will not be continuous.
With a correct weather, the month of september is okay (but not good time) for traveling in Wete (Pemba Island) in Tanzania.
| September | |||
| Average temperature | 79°F | ||
| Highest temperature | 81°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 79°F | ||
| Rainfall | 3.2in | ||
| Number of days with rainfall | 4 day(s) (14%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 37% | ||
| Length of day | 12:04 | ||
| Our opinion at whereandwhen.net | good |
Climate in Chake Chake in september
In the month of september, maximum temperature is 81°F and minimum temperature is 77°F (for an average temperature of 79°F). The climate is enjoyable in this location in september. With 3.2in over 4 days, you will experience some showers for your stay. But this is rather reasonably and you will not be too bothered by it.
With a correct climate, the month of september is okay (but not good time) for traveling in that area.
| September | |||
| Average temperature | 79°F | ||
| Highest temperature | 81°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 79°F | ||
| Rainfall | 3.2in | ||
| Number of days with rainfall | 4 day(s) (14%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 37% | ||
| Length of day | 12:04 | ||
| Our opinion at whereandwhen.net | good |
Climate in Kilindoni (Mafia Island) in september
In september, the mean temperature in Kilindoni (Mafia Island) is 79°F (maximum temperature is 86°F and minimum temperature is 74°F). The climate is very hot here in this month. With 2.1in over 3 days, the rain will not be a problem for your trip.
With a correct weather, the month of september is okay (but not good month) for traveling in Kilindoni (Mafia Island) in Zanzibar.
| September | |||
| Average temperature | 79°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 74°F | ||
| Sea temperature | 79°F | ||
| Rainfall | 2.1in | ||
| Number of days with rainfall | 3 day(s) (10%) | ||
| Humidity | 89% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 34% | ||
| Length of day | 12:03 | ||
| Our opinion at whereandwhen.net | good |
All cities in Zanzibar in september
| Stone Town in september | good weather |
| Nungwi (Unguja Island) in september | good weather |
| Wete (Pemba Island) in september | good weather |
| Chake Chake in september | good weather |
| Kilindoni (Mafia Island) in september | good weather |
| Bwejuu in september | good weather |
| Bweni in september | good weather |
| Changuu (Prison island) in september | good weather |
| Chole Bay in september | good weather |
| Chumbe Island in september | good weather |
| Chwaka in september | good weather |
| Fumba in september | good weather |
| Bawe Island in september | good weather |
| Chapwani Island in september | good weather |
| Jambiani in september | good weather |
| Jozani in september | good weather |
| Kangani in september | good weather |
| Kendwa in september | good weather |
| Kiwengwa in september | good weather |
| Kizimkazi in september | good weather |
| Makunduchi Beach in september | good weather |
| Mangapwani in september | good weather |
| Matemwe in september | good weather |
| Mkoani in september | good weather |
| Mkokotoni in september | good weather |
| Mnemba Island in september | good weather |
| Ngezi Forest in september | good weather |
| Paje Beach in september | good weather |
| Pingwe in september | good weather |
| Tumbatu Island in september | good weather |
| Uroa in september | good weather |
| Utende in september | good weather |
Weather data for Zanzibar in september:
Weather data for Zanzibar in september is derived from an average of the weather forecast since 2009 in Zanzibar. There is a margin of error and these forecasts are to be considered as general information only. The weather in Zanzibar can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Zanzibar.