Siena weather in October 2025

Expect 20°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Siena in October. Check more long-term weather averages for Siena in October before you book your next holiday to Tuscany in 2025/2026.

  • 20°C maximum daytime temperature in October in Siena20
    20°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in October in Siena12
    12 days with some rainfall
  • 11°C minimum night-time temperature in October in Siena11
    11°C min night temperature
  • 11 hours of daylight per day in October in Siena11
    11 hours of daylight per day
  • No heat & humidity in October in Siena0
    No heat & humidity
  • 76 mm monthly rainfall in October in Siena76
    76 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in October in Siena4
    4 (Moderate) UV index

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The October weather guide for Tuscany (Siena) 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.

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

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More about Tuscany

How hot is it in Siena in October?

Daytime temperatures usually reach 20°C in Siena in October, falling to 11°C at night.

How sunny is it in Siena in October?

There are normally 5 hours of bright sunshine each day in Siena in October - that's 47% of daylight hours.

Does it rain in Siena in October?

There are usually 12 days with some rain in Siena in October and the average monthly rainfall is 76mm.

Siena October sunrise & sunset times

Browse the sunrise and sunset times for Siena in October 2025. Select a month to view Siena sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:12 17:56
Thursday, 16th October 2025 06:30 17:30
Friday, 31st October 2025 06:49 17:07

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