UV Index
UV Index
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Today's UV index in Port-aux-Français, French Southern and Antarctic Lands 
will be up to 4.5, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 4.5 in Port-aux-Français, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
The UV index in Port-aux-Français is generally low due to its high latitude and often cloudy weather. On clear days, the UV index can reach a moderate level.
Port-aux-Français experiences two main seasons: a cooler season from May to October and a warmer season from November to April. Winter temperatures can drop below freezing, while summer temperatures rarely exceed 10°C.
Compared to its region and neighboring countries, Port-aux-Français has a unique climate. The city is much colder and windier than its nearby islands in the Indian Ocean, such as Réunion and Mauritius. Its climate is also significantly different from that of its Antarctic neighbors, which experience much colder temperatures and more extreme weather conditions.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Port-aux-Français. It's designed to provide you with a better understanding of the yearly weather and sun exposure.