December weather forecast
Zanzibar, Tanzania

A wooden footbridge across the water of the Indian Ocean, overlooking a beautiful palmy shore in Zanzibar, Tanzania
A wooden footbridge across the water of the Indian Ocean, overlooking a beautiful palmy shore in Zanzibar, Tanzania

Weather in December

December, the first month of the summer, in Zanzibar, is still a tropical month, with average temperature varying between 24°C (75.2°F) and 32°C (89.6°F).

Temperature

In Zanzibar, the average high-temperature remains the same as in November - a still hot 32°C (89.6°F). The average low-temperature, in Zanzibar, is 24°C (75.2°F).

Rainfall

In Zanzibar, in December, it is raining for 13 days, with typically 140mm (5.51") of accumulated precipitation. Throughout the year, there are 125 rainfall days, and 1409mm (55.47") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 28.4°C (83.1°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

With an average of 12.5h of daylight, December has the longest days of the year.

Sunshine

Months with the most sunshine are January, February, June through December, with an average of 8h of sunshine.

UV index

Months with the highest UV index are January through April, September through December, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 12 in December transform into the following instructions:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

How much does it rain in Zanzibar in December?

In Zanzibar, Tanzania, in December, during 13 rainfall days, 140mm (5.51") of precipitation is typically accumulated.

What is the sea water temperature in December in Zanzibar?

In Zanzibar, in December, the average water temperature is 28.4°C (83.1°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

When are the longest days in Zanzibar?

December has the longest days of the year, with an average of 12.5h of daylight.

How many hours of daylight does Zanzibar have in December?

The average length of the day in December is 12.5h.

What is the month with the most sunshine in Zanzibar?

January, February, June through December, with an average of 8h of sunshine, are months with the most sunshine in Zanzibar, Tanzania.

How long on average sun shines in December in Zanzibar?

The average sunshine in December is 8h.

What is the month with the highest UV index in Zanzibar?

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index intensity in December in Zanzibar?

In Zanzibar, the average daily maximum UV index in December is 12. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to the UV radiation.

Average temperature in December
Zanzibar, Tanzania

Average temperature in December - Zanzibar, Tanzania
  • Average high temperature in December: 32°C

The warmest months (with the highest average high temperature) are February and March (33°C).
Months with the lowest average high temperature are June, July and August (28°C).

  • Average low temperature in December: 24°C

Months with the highest average low temperature are March and April (25°C).
The coldest months (with the lowest average low temperature) are July, August and September (22°C).

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Average rainfall in December
Zanzibar, Tanzania

Average rainfall in December - Zanzibar, Tanzania
  • Average rainfall in December: 140mm

The wettest month (with the highest rainfall) is April (320mm).
The driest month (with the least rainfall) is July (28mm).

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Average rainfall days in December
Zanzibar, Tanzania

Average rainfall days in December - Zanzibar, Tanzania
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is February (5 days).

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Average sea temperature in December
Zanzibar, Tanzania

Average sea temperature in December - Zanzibar, Tanzania
  • Average sea temperature in December: 28.4°C

The best months for swimming (with the highest average sea temperature) are March and April (29.2°C).
The coldest month (with the lowest average sea temperature) is August (25.6°C).

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Average daylight in December /
Average sunshine in December
Zanzibar, Tanzania

Average daylight in December / Average sunshine in December - Zanzibar, Tanzania
  • Average daylight in December: 12.5h

The month with the longest days is December (Average daylight: 12.5h).
Months with the shortest days are May, June and July (Average daylight: 11.8h).

  • Average sunshine in December: 8h

Months with the most sunshine are January, February, June, July, August, September, October, November and December (Average sunshine: 8h).
Months with the least sunshine are April and May (Average sunshine: 6).

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Average UV index in December
Zanzibar, Tanzania

Average UV index in December - Zanzibar, Tanzania
  • Average UV index in December: 12

Months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 9).

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