UV Index
UV Index
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Today's UV index in Vientiane, Laos 
will be up to 10.4, indicating a very high 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 of 10.4 in Vientiane, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
The UV index in Vientiane, Laos is high year-round due to its tropical climate, with the peak months being March to May. It's important to take sun precautions during these times.
Vientiane experiences two main seasons: a dry season from November to April and a wet season from May to October. The dry season can be quite warm, with temperatures reaching up to 35°C, while the wet season brings relief with cooler temperatures and afternoon showers.
Compared to its region and neighboring countries, Vientiane's weather is similar to other parts of Southeast Asia, experiencing a hot and humid climate with a significant amount of rainfall. However, it tends to be cooler than cities at the same latitude in Thailand due to its higher elevation.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Vientiane. It's designed to provide you with a better understanding of the yearly weather and sun exposure.