Lanzhou UV index in September

Typical ultraviolet levels for Lanzhou during September, from the past year of data.

Very High Lanzhou

Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.

September average

September UV
9.3596
Risk level
Very High
Yearly peak
12.0529
Peak month
July

Lanzhou UV index — monthly trend

Average UV index by month over the past year, with September highlighted.

How this is calculated

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.