UV Index
UV Index
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Today's UV index in Vientiane, Laos 
will be up to 8.4, indicating very high risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.
With a UV index of 8.4 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.
Read more here about the climate and sun exposure in and around Vientiane.
The UV index in Vientiane ranges from moderate to high throughout the year. During the hot and dry season (February to April), the index often reaches levels of 8 or 9, indicating very high UV levels. It is important to take precautions such as wearing sunscreen, protective clothing, and sunglasses to reduce the risk of sunburn and skin damage.
Vientiane experiences two main weather seasons: the hot and dry season and the rainy season. The hot and dry season lasts from November to May, with temperatures commonly exceeding 30 °C (86 °F) and little to no rainfall. The rainy season, from June to October, brings moderate to heavy rainfall and slightly cooler temperatures, ranging from 25-30 °C (77-86 °F). It's advisable to have an umbrella or raincoat during this time.
Compared to other cities in the region, Vientiane has a similar climate with neighboring countries such as Thailand and Cambodia. However, being located further inland, Vientiane experiences less coastal influence, resulting in hotter temperatures. With an average of 2,800 hours of sunlight per year, Vientiane enjoys a substantial amount of sunshine, making it essential to protect oneself from the intense UV rays to avoid the risk of sunburn and related health issues.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Vientiane. It's designed to provide you with a better understanding of the yearly weather and sun exposure.