September weather forecastLanzhou, China
September
Weather in September
September marks the transition from summer to autumn in Lanzhou. Torrential rain from August dwindles to 52mm (2.05"), showing a decline in the monsoonal intensity. An evident drop in temperatures indicates shorter, cooler days ahead. City views from the Lanshan Park during September display a myriad of colors, reflecting the mood of the impending autumn. September ushers a season change with its temperate climate and reduced rainfall.Temperature
The arrival of September signals a shift in temperature, down from a moderately hot 26°C (78.8°F) in August to an agreeable 21°C (69.8°F). An average low-temperature of 10°C (50°F) is observed during September nights in Lanzhou.Rainfall
In Lanzhou, during September, the rain falls for 13 days and regularly aggregates up to 52mm (2.05") of precipitation. Throughout the year, in Lanzhou, there are 87 rainfall days, and 350mm (13.78") of precipitation is accumulated.Daylight
In Lanzhou, China, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 06:36 and sunset at 19:32. On the last day of the month, sunrise is at 06:59 and sunset at 18:50 CST.
Sunshine
January, September through December, with an average of 6h of sunshine, are months with the least sunshine in Lanzhou.UV index
The average daily maximum UV index in September is 8. A UV Index reading of 8 to 10 represents a very high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 8 suggests this advice:
Be vigilant. Without due care, eyes and skin can be harmed in no time. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lanzhou, China
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is July (27°C).
The month with the lowest average high temperature is January (1°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is July (15°C).
The coldest month (with the lowest average low temperature) is January (-12°C).
Average rainfall in September
Lanzhou, China
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is August (83mm).
The driest month (with the least rainfall) is December (1mm).
Average rainfall days in September
Lanzhou, China
- Average rainfall days in September: 13 days
The months with the highest number of rainy days are July and September (13 days).
The month with the least rainy days is December (1 days).
Average daylight in September /
Average sunshine in September
Lanzhou, China
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 6h
The months with the most sunshine are April, May, June, July and August (Average sunshine: 8h).
The months with the least sunshine are January, September, October, November and December (Average sunshine: 6h).
Average UV index in September
Lanzhou, China
- Average UV index in September: 8
The months with the highest UV index are June and July (UV index 12).
The month with the lowest UV index is December (UV index 2).
