Siena Weather December

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 December.

	average daily high	+9°C
	average daily low	+3.5°C
	daytime	9.6 h
	average monthly precipitation	71 mm

Best time with the soft weather for the sightseeing and long walks in Siena are May, June, September, October.

Best places in December

Temperature in Siena

In December the average daily maximum in Siena is +9°C, and the minimum +3.5°C.

The hottest December day on record is +19.3°C, and the coldest -8°C.

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Best beach resorts in December:

Daylight hours

There are 9.6 hours of daylight in Siena in December.

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Siena climate by month

Precipitation

The amount of precipitation in Siena in December is usually 71 mm, which may cause a change of plans on certain days.