Siena weather

Our guide to the weather in Siena during December

10

Average high

2

UV Index

70mm

Monthly rainfall

83%

Humidity

Siena is an enchanting Italian city with a rich cultural heritage, offering plenty of attractions to explore whatever the season; however, December can be quite cold so visitors should wrap up warm! We've looked at the most up-to-date weather data for Siena, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Siena weather in December.

What's the temperature like in Siena during December?

The temperature reaches around 10℃ during the daytime in December, falling away to 3℃ at night. The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.

Does it snow in Siena during December?

Possibly. There's a chance of snow during December but not as much as you might think. Check the local forecast before you leave home so that you can pack appropriate footwear and clothing.

Does it rain in Siena during December?

On average, there will be 5 rainy days during the month, amounting to 70.4mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Siena during December?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in December. With cool air temperatures, any breeze will feel cold.

Join the club...

Be the first to hear about discounted holidays, flash sales and amazing travel competitions to Siena!

Siena Blog posts

From the UK's most popular travel bloggers

...

14 very best places in Tuscany to visit

31st October 2022 by Hand Luggage Only

Hands down, Tuscany is easily one of the best places in Italy to visit – especially if you love a good mix of historic towns, rolling hills and the most delicious food and vineyards that you can’t miss. Tuscany is totally special and perfect for a road trip around the region, or even a city break! That being said, it can be tough to whittle down a firm list of all the best places in Tuscany to visit as they’re all dotted around this iconic region of Italy. ...

...

10 best things to do in Siena, Italy

20th January 2021 by Hand Luggage Only

Perched within Italy’s gorgeous Tuscany region, the medieval city of Siena is a totally stunning place to visit for a long weekend or part of a wider road trip through Italy’s best cities. With thousands of years of history, there are loads of the best things to do in Siena that are dotted all across this relatively small city. ...

Weather in Siena

Our month-by-month guide to the weather and climate in Siena

8.8

Siena weather in

January
10.4

Siena weather in

February
13.7

Siena weather in

March
17.7

Siena weather in

April
21.2

Siena weather in

May
27.1

Siena weather in

June
31.0

Siena weather in

July
31.5

Siena weather in

August
25.8

Siena weather in

September
20.1

Siena weather in

October
14.3

Siena weather in

November
10.1

Siena weather in

December