St Moritz weather in December 2025

Expect daytime maximum temperatures of -4°C in St Moritz, Switzerland in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 16 days with some rainfall and typically 112 mm of rainfall in the month, which might fall as snow.

  • -4°C maximum daytime temperature in December in St Moritz-4
    -4°C max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in December in St Moritz16
    16 days with some rainfall
  • -9°C minimum night-time temperature in December in St Moritz-9
    -9°C min night temperature
  • 9 hours of daylight per day in December in St Moritz9
    9 hours of daylight per day
  • No heat & humidity in December in St Moritz0
    No heat & humidity
  • 112 mm monthly rainfall in December in St Moritz112
    112 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in St Moritz1
    1 (Low) UV index

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The December weather guide for Switzerland (St Moritz) 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 Switzerland

How cold is it in St Moritz in December?

Daytime temperatures usually reach -4°C in St Moritz in December, falling to -9°C at night.

How sunny is it in St Moritz in December?

There are normally 4 hours of bright sunshine each day in St Moritz in December - that's 44% of daylight hours.

Does it rain in St Moritz in December?

There are usually 16 days with some rain in St Moritz in December and the average monthly rainfall is 112mm. Rain may fall as snow in this month.

St Moritz December sunrise & sunset times

Browse the sunrise and sunset times for St Moritz in December 2025. Select a month to view St Moritz sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:44 16:35
Tuesday, 16th December 2025 07:58 16:34
Wednesday, 31st December 2025 08:04 16:43

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