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World Weather & Climate Information

Average monthly weather in Siena, Italy

What's the best time to go to Siena in Italy? Here are some annual weather facts we collected from our historical climate data:
  • The months May, June, August, September and October have nice weather with a good average temperature.
  • On average, the warmest month(s) are July and August.
  • Most rainfall (rainy season) is seen in November.
  • On average, the warmest month is July.
  • On average, the coolest month is December.
  • November is the wettest month. This month should be avoided if you don't like too much rain.
  • July is the driest month.
For more information, see the weather forecast and our average climate infomation (by month in graphs) below.

* Data from nearest weather station: Florence, Italy (54.6 KM).
10 Day Weather Forecast 

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 Florence, Italy   Copyright © 2017 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 Florence, Italy   Copyright © 2017 www.weather-and-climate.com
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Average percent of sunshine over the year

This is the mean percent of sunhours during the day

Average percent of sunshine in Florence, Italy   Copyright © 2017 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 Florence, Italy   Copyright © 2017 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 Florence, Italy   Copyright © 2017 www.weather-and-climate.com
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Average humidity over the year

This is the mean monthly relative humidity
Average relative humidity in Florence, Italy   Copyright © 2017 www.weather-and-climate.com
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Weather Forecast for Siena

Show in Fahrenheit
WED
Light drizzle
21°C
10°C
THU
Light rain shower
19°C
9°C
FRI
Sunny
18°C
7°C