Vientiane UV index in May
Typical ultraviolet levels for Vientiane during May, from the past year of data.
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
May average
Vientiane UV index — monthly trend
Average UV index by month over the past year, with May highlighted.
Visiting Vientiane in May?
In May, Vientiane's typical UV index is about 13.9937 — a extreme risk level. Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
Across the year, Vientiane sees the strongest UV in Summer, peaking around 14.0349 in August. Plan sun protection accordingly.