Weather in Siena: September
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Average day temperature: | 78.3°F |
| Average night temperature: | 58.6°F | |
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Number of sunny days: | 21 days |
| Day length: | 11.8 - 13.2 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 2.0 in. | |
| more information | ||
14 days
forecast
forecast
| Siena |
weather in
October
October
| Siena |
Air temperature in September, °F
Show year:
2023
2022
2021
The highest day temperature during September of 2023 was 90°F. At the same time the lowest night temperature was 50°F. Day and night temperature averages during September were 81.9°F and 59.2°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 5.5 mph
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: 9.3.
Best time for vacation in Siena
Siena on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Siena
Local time: 03:58
April 29, monday
0600
50°F
SW
3 mph
3 mph
0900
64°F
W
5 mph
5 mph
1200
73°F
W
6 mph
6 mph
1500
75°F
W
6 mph
6 mph
1800
68°F
W
4 mph
4 mph
2100
57°F
W
2 mph
2 mph
April 30, tuesday
0000
54°F
SW
3 mph
3 mph
0300
52°F
W
3 mph
3 mph
