Weather in Siena: September
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Average day temperature: | 78.1°F |
| Average night temperature: | 58.6°F | |
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Number of sunny days: | 20 days |
| Day length: | 11.8 - 13.2 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 1.9 in. | |
| more information | ||
14 days
forecast
forecast
| Siena |
weather in
October
October
| Siena |
Air temperature in September, °F
Show year:
2024
2023
2022
The highest day temperature during September of 2024 was 91°F. At the same time the lowest night temperature was 48°F. Day and night temperature averages during September were 75.2°F and 58.9°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Siena in September is 2.0 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 5.1 mph It makes September one of the least windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 8.9.
Best time for vacation in Siena
Siena on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Siena
Local time: 08:21
January 05, sunday
0900
43°F
NW
4 mph
4 mph
1200
46°F
N
4 mph
4 mph
1500
48°F
N
5 mph
5 mph
1800
48°F
NW
4 mph
4 mph
2100
48°F
NW
5 mph
5 mph
January 06, monday
0000
48°F
NW
4 mph
4 mph
0300
48°F
NW
5 mph
5 mph
0600
50°F
N
6 mph
6 mph
