Vientiane UV index in September
Typical ultraviolet levels for Vientiane during September, from the past year of data.
Extreme
Vientiane
Extreme UV. Avoid sun exposure, seek shade, and use comprehensive protection: clothing, sunscreen, and a hat.
13.5
UV Index
September average UTC
Low
Moderate
High
Very High
Extreme
September UV
13.4983
Risk level
Extreme
Yearly peak
14.0349
Peak month
August
Vientiane UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Vientiane in September?
In September, Vientiane's typical UV index is about 13.4983 — 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.
