Greenock weather in December 2025

Expect daytime maximum temperatures of 43°F in Greenock, Scotland in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 21 days with some rainfall and typically 8.7 inches of rainfall in the month.

  • 43°F maximum daytime temperature in December in Greenock43
    43°F max day temperature
  • 1 hour of sunshine per day
  • 21 days with some rainfall in December in Greenock21
    21 days with some rainfall
  • 34°F minimum night-time temperature in December in Greenock34
    34°F min night temperature
  • 7 hours of daylight per day in December in Greenock7
    7 hours of daylight per day
  • No heat & humidity in December in Greenock0
    No heat & humidity
  • 8.7 inches monthly rainfall in December in Greenock8.7
    8.7 inches of monthly rainfall
  • No UV (maximum) index in December in Greenock0
    No UV (Maximum) Index UV index
  • 48°F sea temperature in December in Greenock48
    48°F sea temperature

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The December weather guide for Scotland (Greenock) 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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More about Scotland

How cold is it in Greenock in December?

Daytime temperatures usually reach 43°F in Greenock in December, falling to 34°F at night.

How sunny is it in Greenock in December?

There are normally 1 hour of bright sunshine each day in Greenock in December - that's 14% of daylight hours.

How warm is the sea around Greenock in December?

The average sea temperature around Greenock in December is 48°F.

Does it rain in Greenock in December?

There are usually 21 days with some rain in Greenock in December and the average monthly rainfall is 8.7 inches.

Greenock December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 08:26 15:50
Tuesday, 16th December 2025 08:45 15:45
Wednesday, 31st December 2025 08:50 15:54

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