Siena weather in January 2025

Expect 9°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Siena in January. Check more long-term weather averages for Siena in January before you book your next holiday to Tuscany in 2025/2026.

  • 9°C maximum daytime temperature in January in Siena9
    9°C max day temperature
  • 4 hours of sunshine per day
  • 13 days with some rainfall in January in Siena13
    13 days with some rainfall
  • 2°C minimum night-time temperature in January in Siena2
    2°C min night temperature
  • 9 hours of daylight per day in January in Siena9
    9 hours of daylight per day
  • No heat & humidity in January in Siena0
    No heat & humidity
  • 65 mm monthly rainfall in January in Siena65
    65 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Siena1
    1 (Low) UV index

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The January 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 warm is it in Siena in January?

Daytime temperatures usually reach 9°C in Siena in January, falling to 2°C at night.

How sunny is it in Siena in January?

There are normally 4 hours of bright sunshine each day in Siena in January - that's 38% of daylight hours.

Does it rain in Siena in January?

There are usually 13 days with some rain in Siena in January and the average monthly rainfall is 65mm.

Siena January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:47 16:50
Thursday, 16th January 2025 07:43 17:06
Friday, 31st January 2025 07:31 17:25

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