December weather forecast
Port-aux-Français, French Southern and Antarctic Lands

December, while still maintaining a moderate rainfall pattern averaging 58mm (2.28"), ushers in a slightly warmer climate. The increase in temperatures and longer days continue to enhance the pleasantness. The city also witnesses a sharp decrease in snowfall days. However, the continued presence of sunshine makes the weather conditions favorable for outdoor activities. Despite being the last month of the year, December sets the mood right for the cycle to start again.

Temperature

Port-aux-Français signifies an average high-temperature of a fresh 10.2°C (50.4°F) in December, closely mirroring the 8.4°C (47.1°F) of November. Throughout December, Port-aux-Français encounters an average temperature drop to an icy 3.1°C (37.6°F).

Rainfall

In Port-aux-Français, in December, it is raining for 16 days, with typically 58mm (2.28") of accumulated precipitation. Throughout the year, there are 169 rainfall days, and 708mm (27.87") of precipitation is accumulated.

Snowfall

January, March through December are months with snowfall. In Port-aux-Français, during December, snow falls for 2 days. In Port-aux-Français, French Southern and Antarctic Lands, during the entire year, snow falls for 79 days.

Sea temperature

In Port-aux-Français, the average seawater temperature in December is 4°C (39.2°F).
Note: During swimming events, this situation presents an imminent life risk. Instantaneous loss of breath control makes clear thinking a near impossibility. A specialized swimsuit is compulsory to limit thermal dissipation.

Daylight

The month with the longest days is December, with an average of 16h and 12min of daylight.
On the first day of December, sunrise is at 04:10 and sunset at 20:06. On the last day of the month, sunrise is at 04:16 and sunset at 20:27 +05.

Sunshine

In December, the average sunshine is 6h.

UV index

The months with the highest UV index are January and December, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 8 during December translates into the following recommendations:
With the absence of protection, damage to skin and eyes can occur instantly. Ensure precautions are taken. 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. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.