Siena weather in September 2020

  • 25°C maximum daytime temperature in September in Siena25
    25°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in Siena9
    9 days with some rainfall
  • 14°C minimum night-time temperature in September in Siena14
    14°C min night temperature
  • 12 hours of daylight per day in September in Siena12
    12 hours of daylight per day
  • No heat & humidity in September in Siena0
    No heat & humidity
  • 69 mm monthly rainfall in September in Siena69
    69 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Siena5
    5 (Moderate) UV index
  • Top deals & discounts
  • Siena weather overview
  • Siena climate averages by month
  • More destinations
  • Best time to go to Siena
  • Siena 5-day weather forecast

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The September weather guide for Siena, Tuscany shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

  • Save on Jack's Flight Club Premium with latest offer
  • Pay just £3.25 per month (based on annual membership)
  • Cancel anytime. 3 & 6 month subscriptions also available

Expires at 23:59 on Saturday 29th Feb 2020

How hot is it in Siena in September?

Daytime temperatures usually reach 25°C in Siena in September with no heat and humidity, falling to 14°C at night.

How sunny is it in Siena in September?

There are normally 7 hours of bright sunshine each day in Siena in September - that's 56% of daylight hours.

Does it rain in Siena in September?

There are usually 9 days with some rain in Siena in September and the average monthly rainfall is 69mm.

Siena sunrise & sunset times for September 2020

Browse the sunrise & sunset times for Siena in September 2020. Select a month to view Siena sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2020 06:39 19:49
Tuesday, 15th September 2020 06:54 19:24
Wednesday, 30th September 2020 07:11 18:57
  • Save on Jack's Flight Club Premium with latest offer
  • Pay just £3.25 per month (based on annual membership)
  • Cancel anytime. 3 & 6 month subscriptions also available

Expires at 23:59 on Saturday 29th Feb 2020

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Discover more about Italy

Where's hot in Tuscany in September?

Below are average maximum temperatures at popular destinations in Tuscany in September. Select a destination to see more weather parameters.

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.