Weather in Siena in May
Siena temperatures in May range from 13 to 25 and there is an average of 10 days of rain.
Avg Temp
13° - 25°
Avg Rainy Days
10
Avg Dry Days
21
Avg Snow Days
0
Weather Facts - Siena in May
* The warmest temperature recorded in in May is 34°C
* The coldest temperature recorded in Siena in May is 5°C
* The average rainfall in Siena in May is 77 mm