September weather forecast
Lhasa, China

September indicates a downward trend as summer starts to wane in Lhasa. The city registers a notable reduction in rainfall, marking the end of the monsoon season towards the month-end. With the easing of rains, the humidity levels also decrease, bringing some relief. A recorded increase in sunshine hours validates the gradual shift towards autumn. The temperatures during September vary from a tranquil low of 7.7°C (45.9°F) to a high of 19.9°C (67.8°F).

Temperature

Lhasa observes an average high-temperature of a comfortable 19.9°C (67.8°F) in September, barely different from 21.4°C (70.5°F) in August. During the nights in September, Lhasa records a pronounced shift from the daytime warmth, with a consistent average temperature of 7.7°C (45.9°F).

Humidity

In Lhasa, the average relative humidity in September is 64%.

Rainfall

In Lhasa, in September, during 15.4 rainfall days, 68mm (2.68") of precipitation is typically accumulated. In Lhasa, during the entire year, the rain falls for 92.1 days and collects up to 427mm (16.81") of precipitation.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 07:32 and sunset at 20:17. On the last day of September, sunrise is at 07:48 and sunset at 19:42 CST.

Sunshine

In September, the average sunshine is 7.6h.

UV index

April through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an extreme health hazard from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 12 suggests this advice:
Utilize all vital precautions. Guarding against sun harm is non-negotiable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.