Sault Ste. Marie weather in December 2025

Expect -3°C daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Sault Ste. Marie in December based on long-term weather averages. There is usually 20 days with some rainfall and 94 mm of average monthly rainfall in December.

  • -3°C maximum daytime temperature in December in Sault Ste. Marie-3
    -3°C max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in December in Sault Ste. Marie20
    20 days with some rainfall
  • -12°C minimum night-time temperature in December in Sault Ste. Marie-12
    -12°C min night temperature
  • 9 hours of daylight per day in December in Sault Ste. Marie9
    9 hours of daylight per day
  • No heat & humidity in December in Sault Ste. Marie0
    No heat & humidity
  • 94 mm monthly rainfall in December in Sault Ste. Marie94
    94 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Sault Ste. Marie1
    1 (Low) UV index
  • 4°C sea temperature in December in Sault Ste. Marie4
    4°C sea temperature

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Sault Ste. Marie by month

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The December weather guide for Ontario (Sault Ste. Marie) 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 Ontario

How cold is it in Sault Ste. Marie in December?

Daytime temperatures usually reach -3°C in Sault Ste. Marie in December, falling to -12°C at night.

How sunny is it in Sault Ste. Marie in December?

There are normally 2 hours of bright sunshine each day in Sault Ste. Marie in December - that's 25% of daylight hours.

Is the sea cold around Sault Ste. Marie in December?

The average sea temperature around Sault Ste. Marie in December is 4°C.

Does it rain in Sault Ste. Marie in December?

There are usually 20 days with some rain in Sault Ste. Marie in December and the average monthly rainfall is 94mm. Rain may fall as snow in this month.

Sault Ste. Marie December sunrise & sunset times

Browse the sunrise and sunset times for Sault Ste. Marie in December 2025. Select a month to view Sault Ste. Marie sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 08:01 16:52
Tuesday, 16th December 2025 08:15 16:51
Wednesday, 31st December 2025 08:21 17:00

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