UV index today  UV Index

UV Index in Vientiane

Day Summary

Today's UV index in Vientiane, Laos Laos will be up to 11, indicating a extreme level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.

Last checked: 2025-05-08

Forecast

Today's tips

UV index at 11 in Vientiane means extreme risk: limit outdoor time especially from 10 a.m. to 4 p.m., actively seek shade, wear protective clothing, broad-brimmed hat, apply SPF 30+ sunscreen every 2 hours, and wear UV-blocking sunglasses. Watch for bright surfaces like water and snow increasing UV exposure.

Vientiane's UV Index

The UV index in Vientiane can reach very high levels, especially from March to May, often peaking around 10 or 11. This means the sun’s rays are very strong during these months.

Weather Seasons

UV index

Vientiane has three main seasons: a hot season from March to May, a rainy season from May to October, and a cool season from November to February. The hottest months are April and May, while it rains most in July and August.

Vientiane's Climate

Compared to nearby countries like Thailand and Vietnam, Vientiane is usually hotter in the dry season but has similar heavy rains during the monsoon. It is a bit drier than some coastal parts of Vietnam.

Hourly Trend

See the UV index hour by hour for Vientiane, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.

Disclaimer

* This page's content about the UV index in Vientiane (Laos) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.