Weather in Sumy in September
The weather in Sumy in September is fickle, ranging from cold to pleasant. Temperatures are between 8 and 18 degrees and there are about 12 days of rain, so it is advised to prepare for both warm and chilly conditions.
Avg Temp
8° - 18°
Avg Rainy Days
12
Avg Dry Days
18
Avg Snow Days
0
Weather Facts - Sumy in September
* The warmest temperature recorded in in September is 31°C
* The coldest temperature recorded in Sumy in September is (-4°C)
* The average rainfall in Sumy in September is 56 mm