Margaret River weather in December 2025

Expect daytime maximum temperatures of 75°F in Margaret River, Western Australia in December based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 75°F maximum daytime temperature in December in Margaret River75
    75°F max day temperature
  • 10 hours of sunshine per day
  • 4 days with some rainfall in December in Margaret River4
    4 days with some rainfall
  • 57°F minimum night-time temperature in December in Margaret River57
    57°F min night temperature
  • 14 hours of daylight per day in December in Margaret River14
    14 hours of daylight per day
  • No heat & humidity in December in Margaret River0
    No heat & humidity
  • 0.7 inches monthly rainfall in December in Margaret River0.7
    0.7 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Margaret River11
    11+ (Extreme) UV index
  • 66°F sea temperature in December in Margaret River66
    66°F sea temperature

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The December weather guide for Western Australia (Margaret River) 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)  |  Imperial (°F)

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How hot is it in Margaret River in December?

Daytime temperatures usually reach 75°F in Margaret River in December, falling to 57°F at night.

How sunny is it in Margaret River in December?

There are normally 10 hours of bright sunshine each day in Margaret River in December - that's 69% of daylight hours.

How warm is the sea around Margaret River in December?

The average sea temperature around Margaret River in December is 66°F.

Does it rain in Margaret River in December?

There are usually 4 days with some rain in Margaret River in December and the average monthly rainfall is 0.7 inches.

Margaret River December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 05:02 19:16
Tuesday, 16th December 2025 05:03 19:27
Wednesday, 31st December 2025 05:11 19:34

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