Please click on any column to get detailed information about Siena weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
The warmest month in Siena is july. The average daily temp is 90.7°F. The average nightly temp is 65.9°F.
Precipitation total, in.
Number of rainy days
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
* Charts above show average data for the last 3 years.
Best time for vacation in Siena
Siena on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Siena
Local time: 10:31
December 18, thursday
1200
55°F
W
4 mph
4 mph
1500
57°F
NW
2 mph
2 mph
1800
52°F
W
2 mph
2 mph
2100
50°F
W
3 mph
3 mph
December 19, friday
0000
48°F
W
2 mph
2 mph
0300
48°F
W
4 mph
4 mph
0600
48°F
W
4 mph
4 mph
0900
50°F
W
3 mph
3 mph
