Siena Weather September
Siena is situated in humid subtropical zone which is known for warm weather during summer time with high humidity and soft and cool winter with short rainfalls.
To help you choose the best time to travel, you can find climate data below on the weather in Siena in September.
 | average daily high | +23.4°C |
 | average daily low | +14.1°C |
 | daytime | 12.9 h |
 | average monthly precipitation | 56 mm |
Best time with the soft weather for the sightseeing and long walks in Siena are May, June, September, October.
Temperature in Siena
In September the average daily maximum in Siena is +23.4°C, and the minimum +14.1°C.
The hottest September day on record is +34°C, and the coldest +6.4°C.
Best beach resorts in September:
Barcelona
Spain
Nice
France
Cannes
France
Lisbon
Portugal
Marseille
France
Algarve
Portugal
Daylight hours
There are 12.9 hours of daylight in Siena in September.
Most Popular Destinations in the World
Precipitation
The amount of precipitation in Siena in September is usually 56 mm, which may cause a change of plans on certain days.