December weather forecast
Mamoudzou, Mayotte

December wraps up the year in Mamoudzou with a return to higher rainfall levels, reminiscent of the pattern seen at the year's beginning. The average high temperature remains stable at 28°C (82.4°F), while the sea temperature climbs back up to 28°C (82.4°F), creating a conducive environment for water activities. As daylight hours reach a yearly high of 12.9 hours, the mix of warm days, increased rainfall, and ample daylight makes December a unique blend of summer-style weather with winter timelines.

Temperature

January through May, November and December mark Mamoudzou's peak of temperatures, averaging a high-temperature of 28°C (82.4°F).

Rainfall

In Mamoudzou, Mayotte, during December, the rain falls for 15 days and regularly aggregates up to 186mm (7.32") of precipitation. In Mamoudzou, Mayotte, during the entire year, the rain falls for 124 days and collects up to 1425mm (56.1") of precipitation.

Sea temperature

In Mamoudzou, the average seawater temperature in December is 28°C (82.4°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.

Daylight

December has the longest days of the year, with an average of 12h and 54min of daylight.
On the first day of December in Mamoudzou, sunrise is at 05:23 and sunset at 18:12. On the last day of the month, sunrise is at 05:36 and sunset at 18:28 EAT.

Sunshine

In December, the average sunshine is 8h.

UV index

January through March, 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 threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 12 suggests these recommendations:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Even when it's cloudy, ensure the generous application and frequent reapplication of a sunscreen with at least 30 SPF, particularly post swim or outdoor activity. Watch out! Sand and water enhance the UV exposure you receive.