December weather forecast
Pemba Island, Tanzania

Rounding off the year, December carries on with the short rainy season, though with slightly less rainfall compared to November. Known as a month of celebration, the Island's weather doesn't prevent the festivities with a significant amount of sunshine per day. The warm spirit of December extends to the weather, with sea temperatures hitting an average of 28.4°C (83.1°F). This makes it ideal for visitors who love beach activities and swimming. It is the perfect weather to end the year, aligning the sunny Island atmosphere with the festive mood.

Temperature

December's onset corresponds to a marginal change in the average high-temperature to a still hot 31°C (87.8°F), matching November's readings. During the month of December, Pemba Island anticipates a mean low-temperature of 23°C (73.4°F).

Rainfall

In December, the rain falls for 12 days. Throughout December, 98mm (3.86") of precipitation is accumulated. In Pemba Island, during the entire year, the rain falls for 145 days and collects up to 1373mm (54.06") of precipitation.

Sea temperature

In December, the average sea temperature is 28.4°C (83.1°F).
Note: For engaging in water activities including swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are perceived as perfect, providing pleasure for extended durations.

Daylight

The month with the longest days is December, with an average of 12h and 24min of daylight.
On the first day of December, sunrise is at 05:58 and sunset at 18:21. On the last day of the month, sunrise is at 06:11 and sunset at 18:36 EAT.

Sunshine

January, February, September through December, with an average of 9h of sunshine, are months with the most sunshine.

UV index

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 12 during December leads to these instructions:
Ensure every crucial precaution is taken. Individuals with light skin could experience burns in under 5 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Even if it's cloudy, generously apply and frequently reapply a sunscreen with no less than a 30 sun protection factor after each swim or outdoor exercise. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.