Weather in Siena in October
The weather in Siena in October is pleasant during the day and a little cold sometimes, especially at night. Temperatures range from 11 to 21 degrees and there are 13 days of rain on average. Please prepare accordingly with an umbrella and warm clothing.
Avg Temp
11° - 21°
Avg Rainy Days
13
Avg Dry Days
18
Avg Snow Days
0
Weather Facts - Siena in October
* The warmest temperature recorded in in October is 30°C
* The coldest temperature recorded in Siena in October is 0°C
* The average rainfall in Siena in October is 107 mm