Zanzibar, TANZANIA and its best beaches
Climate - Temperatures and rainfall - Indian Ocean
Zanzibar: Temperatures during the day, at night, rain and bathing conditions
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January Day temperature  90°F / 32°C |
Night temp.  76°F / 24°C |
Bathing temperature  85°F / 29°C |
Rain  089 mm |
Conditions  
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February Day temperature 92°F / 33°C |
Night temp. 76°F / 24°C |
Bathing temperature 85°F / 29°C |
Rain 056 mm |
Conditions  
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March Day temperature 92°F / 33°C |
Night temp. 77°F / 25°C |
Bathing temperature 85°F / 29°C |
Rain 152 mm |
Conditions
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April Day temperature 86°F / 30°C |
Night temp. 77°F / 25°C |
Bathing temperature 83°F / 28°C |
Rain 142 mm |
Conditions
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May Day temperature 85°F / 29°C |
Night temp. 76°F / 24°C |
Bathing temperature 83°F / 28°C |
Rain 090 mm |
Conditions
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June Day temperature 83°F / 28°C |
Night temp. 74°F / 23°C |
Bathing temperature 81°F / 27°C |
Rain 069 mm |
Conditions
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July Day temperature 83°F / 28°C |
Night temp. 72°F / 22°C |
Bathing temperature 79°F / 26°C |
Rain 048 mm |
Conditions
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August Day temperature 83°F / 28°C |
Night temp. 72°F / 22°C |
Bathing temperature 79°F / 26°C |
Rain 048 mm |
Conditions
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September Day temperature 85°F / 29°C |
Night temp. 72°F / 22°C |
Bathing temperature 79°F / 26°C |
Rain 051 mm |
Conditions
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October Day temperature 86°F / 30°C |
Night temp. 74°F / 23°C |
Bathing temperature 77°F / 25°C |
Rain 097 mm |
Conditions
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November Day temperature 90°F / 32°C |
Night temp. 76°F / 24°C |
Bathing temperature 81°F / 27°C |
Rain 226 mm |
Conditions
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December Day temperature 90°F / 32°C |
Night temp. 76°F / 24°C |
Bathing temperature 83°F / 28°C |
Rain 193 mm |
Conditions
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Tanzania : climate and when to go to Zanzibar
Variable climates from tropical along the coast to temperate in the mountains.
| January Acceptable |
February Pecfect |
March Risky |
April Risky |
May Acceptable |
June Pecfect |
July Pecfect |
August Pecfect |
September Pecfect |
October Acceptable |
November Risky |
December Risky |
When to go? The hottest month for the beach, lazing around and swimming is February. Check the precipitations because showers are possible but the sun returns quickly, otherwise other periods are possible. The coolest month is July, if you can not stand the heat too much. The driest month of the year is July, if you do not like the rain at all.
Click on
Zanzibar to display its climate.
Graphs and temperature curves with average precipitation over the year
Precipitation, rainfall, cyclone: TANZANIA
Temperatures of bathing water around Zanzibar
Landmarks
Perfect conditions to enjoy the beach.
Favorable conditions for enjoying the beach. Cloudy with sunny spells and thunderstorms.
Very strong tropical or monsoon rains.
Months at risk of cyclones with alerts level 1 to 5. Nice swimming at more than 26°C / 79°F. Everything is perfect for traveling.No cyclone risk for this country
Indian Ocean
Climate September 2025
Zanzibar sunshine in summer and winter
The sun at its zenith, that means well perpendicular to the surface of the Earth, sending 100% of radiation and heat. Zanzibar receives in winter (january), 95% of sun power and 86% during summer time (july).
The average temperature and sunshine deviations between summer and winter are 9%. This small gap means that the temperature at sea does not really vary and that the sea remains warm enough in summer and winter. The air is also hot all year round without great thermal amplitude.
Average temperatures and rainfall for a stay in September
On the left, the averages observed every month of September on the Tanzania beaches. The trends for next month are, slightly warmer daytime temperatures, a bathing water in Indian Ocean which loses degrees, more abundant rains with warmer nights.
Sunset and sunrise times for TANZANIA
Local time : September 2025, Thursday 18, 07:26 AM
Sunrise time : 06:16 am, point A
Sunset time : 6:17 pm, point B
Duration of daylight : 12:01 / 24:00
Jet lag : GMT+3
The average monthly UV index of TANZANIA
What is the period of mosquitoes virulence over the year?
Weather forecast for Zanzibar
Here are the current 5-day forecasts for Zanzibar / Zanzibar. Temperatures are spaced 3 hours apart for each day. The summary of the state of the sky gives the trend of the week. The sea temperature at is a monthly average. In lagoons or seashores where the bathing water is shallow, you can add some degrees.
Friday
September 19, 2025
8 am
79.6°F
27°C
Broken clouds
Humidity 70%
Sea 79°F/26°C
Friday
September 19, 2025
11 am
82.3°F
28°C
Light rain
Humidity 62%
Sea 79°F/26°C
Friday
September 19, 2025
2 pm
83.3°F
29°C
Scattered clouds
Humidity 61%
Sea 79°F/26°C
Friday
September 19, 2025
5 pm
78.8°F
26°C
Few clouds
Humidity 76%
Sea 79°F/26°C
Friday
September 19, 2025
8 pm
76.8°F
25°C
Clear sky
Humidity 82%
Sea 79°F/26°C
Friday
September 19, 2025
11 pm
75.8°F
25°C
Few clouds
Humidity 84%
Sea 79°F/26°C
Saturday
September 20, 2025
8 am
80°F
27°C
Scattered clouds
Humidity 66%
Sea 79°F/26°C
Saturday
September 20, 2025
11 am
83.1°F
29°C
Scattered clouds
Humidity 59%
Sea 79°F/26°C
Saturday
September 20, 2025
2 pm
83.3°F
29°C
Scattered clouds
Humidity 59%
Sea 79°F/26°C
Saturday
September 20, 2025
5 pm
79.5°F
27°C
Broken clouds
Humidity 70%
Sea 79°F/26°C
Saturday
September 20, 2025
8 pm
77.2°F
26°C
Scattered clouds
Humidity 78%
Sea 79°F/26°C
Saturday
September 20, 2025
11 pm
76.3°F
25°C
Clear sky
Humidity 80%
Sea 79°F/26°C
Sunday
September 21, 2025
8 am
78.3°F
26°C
Overcast clouds
Humidity 74%
Sea 79°F/26°C
Sunday
September 21, 2025
11 am
83°F
29°C
Light rain
Humidity 62%
Sea 79°F/26°C
Sunday
September 21, 2025
2 pm
81.9°F
28°C
Light rain
Humidity 64%
Sea 79°F/26°C
Sunday
September 21, 2025
5 pm
79.2°F
27°C
Light rain
Humidity 72%
Sea 79°F/26°C
Sunday
September 21, 2025
8 pm
76.6°F
25°C
Broken clouds
Humidity 79%
Sea 79°F/26°C
Sunday
September 21, 2025
11 pm
74.8°F
24°C
Scattered clouds
Humidity 85%
Sea 79°F/26°C
Monday
September 22, 2025
8 am
80.3°F
27°C
Light rain
Humidity 70%
Sea 79°F/26°C
Monday
September 22, 2025
11 am
82.3°F
28°C
Light rain
Humidity 65%
Sea 79°F/26°C
Monday
September 22, 2025
2 pm
81.8°F
28°C
Light rain
Humidity 66%
Sea 79°F/26°C
Monday
September 22, 2025
5 pm
78.9°F
27°C
Scattered clouds
Humidity 67%
Sea 79°F/26°C
Monday
September 22, 2025
8 pm
75.9°F
25°C
Scattered clouds
Humidity 80%
Sea 79°F/26°C
Monday
September 22, 2025
11 pm
74.8°F
24°C
Scattered clouds
Humidity 81%
Sea 79°F/26°C
Weather uncertainties 2025 to go to Zanzibar ?
When traveling in the tropics as a seaside, rain is not welcome. If you see this indicator, with possible storms, that does not mean that it will rain all day long. When we observe the local rainfall, it is either really zero or very weak. Meteorologists prefer to be pessimistic. So observe below, the skies photographed during a week announced stormy in Asia. It did not rain once. I invite you to integrate this parameter before going to Zanzibar for a good trip to the sun!
