UV Index
UV Index
Today's UV index in Port Louis, Mauritius 
will be up to 5.7, indicating a moderate level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-06-21
With a UV index reaching up to 5.7 in Port Louis, 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.
Port Louis, Mauritius has a UV index that ranges from moderate to high, typically between 6 and 11 throughout the year. The highest UV levels occur during the summer months from November to April.
The weather in Port Louis features a hot, humid summer from November to April with frequent rain and occasional cyclones. The winter from May to October is cooler, drier, and more comfortable with less rainfall.
Compared to nearby islands like Réunion and Madagascar, Port Louis has a warmer and more humid climate. It is generally sunnier and less prone to extreme temperature drops than the mainland areas of southern Africa.
See the UV index hour by hour for Port Louis, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.