Geelong weather in December 2025

Expect daytime maximum temperatures of 73°F in Geelong, Victoria in December based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 1.7 inches of rainfall in the month.

  • 73°F maximum daytime temperature in December in Geelong73
    73°F max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in December in Geelong9
    9 days with some rainfall
  • 54°F minimum night-time temperature in December in Geelong54
    54°F min night temperature
  • 15 hours of daylight per day in December in Geelong15
    15 hours of daylight per day
  • No heat & humidity in December in Geelong0
    No heat & humidity
  • 1.7 inches monthly rainfall in December in Geelong1.7
    1.7 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in December in Geelong11
    11 (Extreme) UV index
  • 63°F sea temperature in December in Geelong63
    63°F sea temperature

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The December weather guide for Victoria (Geelong) 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 Geelong in December?

Daytime temperatures usually reach 73°F in Geelong in December, falling to 54°F at night.

How sunny is it in Geelong in December?

There are normally 8 hours of bright sunshine each day in Geelong in December - that's 54% of daylight hours.

How warm is the sea around Geelong in December?

The average sea temperature around Geelong in December is 63°F.

Does it rain in Geelong in December?

There are usually 9 days with some rain in Geelong in December and the average monthly rainfall is 1.7 inches.

Geelong December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 04:53 19:30
Tuesday, 16th December 2025 04:54 19:42
Wednesday, 31st December 2025 05:02 19:49

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