September weather forecast
Altay, China

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.