The Siena long range forecast shows a slight warming trend, with temperatures gently rising above the seasonal average, 2.8 °C comparing to the historical average.
Select a month and click on a day for more information:
Monday
Dec 1
11° / 5°
Tuesday
Dec 2
12° / 5°
Wednesday
Dec 3
9° / 3°
Thursday
Dec 4
8° / 3°
Friday
Dec 5
12° / 5°
Saturday
Dec 6
11° / 4°
Sunday
Dec 7
11° / 4°
Monday
Dec 8
12° / 4°
Tuesday
Dec 9
13° / 5°
Wednesday
Dec 10
13° / 5°
Thursday
Dec 11
13° / 5°
Friday
Dec 12
13° / 5°
Saturday
Dec 13
13° / 5°
Sunday
Dec 14
11° / 5°
Monday
Dec 15
10° / 8°
Tuesday
Dec 16
14° / 7°
Wednesday
Dec 17
13° / 6°
Thursday
Dec 18
12° / 5°
Friday
Dec 19
11° / 5°
Saturday
Dec 20
11° / 4°
Sunday
Dec 21
10° / 5°
Monday
Dec 22
10° / 5°
Tuesday
Dec 23
10° / 5°
Wednesday
Dec 24
11° / 5°
Thursday
Dec 25
12° / 6°
Friday
Dec 26
10° / 5°
Saturday
Dec 27
10° / 3°
Sunday
Dec 28
10° / 4°
Monday
Dec 29
10° / 5°
Tuesday
Dec 30
10° / 4°
Wednesday
Dec 31
11° / 5°
Siena 30 days weather forecast
Check out our estimated 30 days weather forecast for Siena, this data is based on the average weather in Siena in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Siena next to the desired date.