Climate in Siena (Tuscany), Italy

See the monthly weather averages in graphs below.

Average minimum and maximum temperature over the year

The monthly mean minimum and maximum daily temperature. Show in Fahrenheit

Average min and max temperatures in Siena, Italy   Copyright © 2020 www.weather-and-climate.com

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Average monthly hours of sunshine over the year

This is the monthly total of sunhours

Average monthly sunhours in Siena, Italy   Copyright © 2020 www.weather-and-climate.com

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Average monthly precipitation over the year (rainfall, snow)

This is the mean monthly precipitation, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in Siena, Italy   Copyright © 2020 www.weather-and-climate.com

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Average monthly rainy days over the year

This is the number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in Siena, Italy   Copyright © 2020 www.weather-and-climate.com

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Where to stay in Siena

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What is the best time of year to go to Siena in Italy

Siena has a warm maritime climate that is strongly influenced by the Mediterranean sea. Due to this influence the weather is very stable in Siena. This means summer and winter temperatures are not very far apart and it rarely gets really hot or extremely cold. The rainfall is evenly distributed throughout the year, but in summer months the average rainfall is a bit lower. In winter months, the average daily temperature is around ten degrees Celsius (50 degrees Fahrenheit).

Here are some average weather facts we collected from our historical climate data:

  • During the month of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F).
  • The months of October, November and December have a high chance of precipitation.
  • The warmest month is July with an average maximum temperature of 28°C (82°F).
  • The coldest month is January with an average maximum temperature of 8°C (35°F).
  • October is the most wet month. This month should be avoided if you are not a big fan of rain.
  • July is the driest month.
No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go here.