Sudbury weather in December 2026

Expect daytime maximum temperatures of -5°C in Sudbury, Ontario in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 13 days with some rainfall and typically 66 mm of rainfall in the month, which might fall as snow.

  • -5°C maximum daytime temperature in December in Sudbury-5
    -5°C max day temperature
  • 2 hours of sunshine per day
  • 13 days with some rainfall in December in Sudbury13
    13 days with some rainfall
  • -13°C minimum night-time temperature in December in Sudbury-13
    -13°C min night temperature
  • 9 hours of daylight per day in December in Sudbury9
    9 hours of daylight per day
  • No heat & humidity in December in Sudbury0
    No heat & humidity
  • 66 mm monthly rainfall in December in Sudbury66
    66 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Sudbury1
    1 (Low) UV index

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The December weather guide for Ontario (Sudbury) 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 Sudbury in December?

Daytime temperatures usually reach 0°C in Sudbury in December, falling to -6°C at night.

How sunny is it in Sudbury in December?

There are normally 2 hours of bright sunshine each day in Sudbury in December - that's 26% of daylight hours.

Is the sea cold around Sudbury in December?

The average sea temperature around Sudbury in December is 5°C.

Does it rain in Sudbury in December?

There are usually 13 days with some rain in Sudbury in December and the average monthly rainfall is 72mm. Rain may fall as snow in this month.

Sudbury December sunrise & sunset times

Browse the sunrise and sunset times for Sudbury in December 2026. Select a month to view Sudbury sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st December 2026 07:47 16:39
Wednesday, 16th December 2026 08:02 16:38
Thursday, 31st December 2026 08:08 16:47

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