Lanzhou UV index in September
Typical ultraviolet levels for Lanzhou during September, from the past year of data.
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
September average UTC
Lanzhou UV index — monthly trend
Average UV index by month over the past year, with September highlighted.
Visiting Lanzhou in September?
In September, Lanzhou's typical UV index is about 9.3596 — a very high risk level. Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
Across the year, Lanzhou sees the strongest UV in Summer, peaking around 12.0529 in July. Plan sun protection accordingly.