September weather forecastAltay, China
September
Weather in September
September, the first month of the autumn in Altay, is still a refreshing month, with an average temperature fluctuating between 4°C (39.2°F) and 18°C (64.4°F).Temperature
With September's onset, the weather shows a temperature decrease, transitioning from a warm 23°C (73.4°F) in August to an enjoyable 18°C (64.4°F). The nighttime average for Altay in September plummets considerably from its daytime counterpart, resting at an icy 4°C (39.2°F).Rainfall
In Altay, in September, during 7 rainfall days, 17mm (0.67") of precipitation is typically accumulated. In Altay, during the entire year, the rain falls for 92 days and collects up to 197mm (7.76") of precipitation.Daylight
The average length of the day in September in Altay is 12h and 35min.On the first day of the month, sunrise is at 07:26 and sunset at 20:48. On the last day of September, sunrise is at 08:05 and sunset at 19:49 CST.
Sunshine
In Altay, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Altay is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. It's recommended to limit sun exposure when its radiation is at its peak during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Altay, China
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is July (25°C).
The month with the lowest average high temperature is January (-11°C).
- Average low temperature in September: 4°C
The month with the highest average low temperature is July (11°C).
The coldest month (with the lowest average low temperature) is January (-23°C).
Average rainfall in September
Altay, China
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is July (33mm).
The driest months (with the least rainfall) are February and March (8mm).
Average rainfall days in September
Altay, China
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is July (10 days).
The month with the least rainy days is March (6 days).
Average daylight in September /
Average sunshine in September
Altay, China
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 9h
The months with the most sunshine are June and July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 4h).
Average UV index in September
Altay, China
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 1).





