Summerside weather in December 2025

Expect daytime maximum temperatures of 0°C in Summerside, Prince Edward Island in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 17 days with some rainfall and typically 106 mm of rainfall in the month, which might fall as snow.

  • 0°C maximum daytime temperature in December in Summerside0
    0°C max day temperature
  • 2 hours of sunshine per day
  • 17 days with some rainfall in December in Summerside17
    17 days with some rainfall
  • -8°C minimum night-time temperature in December in Summerside-8
    -8°C min night temperature
  • 9 hours of daylight per day in December in Summerside9
    9 hours of daylight per day
  • No heat & humidity in December in Summerside0
    No heat & humidity
  • 106 mm monthly rainfall in December in Summerside106
    106 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Summerside1
    1 (Low) UV index
  • 0°C sea temperature in December in Summerside0
    0°C sea temperature

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The December weather guide for Prince Edward Island (Summerside) 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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How cold is it in Summerside in December?

Daytime temperatures usually reach -0°C in Summerside in December, falling to -8°C at night.

How sunny is it in Summerside in December?

There are normally 2 hours of bright sunshine each day in Summerside in December - that's 28% of daylight hours.

Is the sea cold around Summerside in December?

The average sea temperature around Summerside in December is -0°C.

Does it rain in Summerside in December?

There are usually 17 days with some rain in Summerside in December and the average monthly rainfall is 106mm. Rain may fall as snow in this month.

Summerside December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:38 16:30
Tuesday, 16th December 2025 07:53 16:29
Wednesday, 31st December 2025 07:59 16:38

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