Iona weather in December 2025

Expect daytime maximum temperatures of 46°F in Iona, Scotland in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 22 days with some rainfall and typically 6.5 inches of rainfall in the month.

  • 46°F maximum daytime temperature in December in Iona46
    46°F max day temperature
  • 1 hour of sunshine per day
  • 22 days with some rainfall in December in Iona22
    22 days with some rainfall
  • 37°F minimum night-time temperature in December in Iona37
    37°F min night temperature
  • 7 hours of daylight per day in December in Iona7
    7 hours of daylight per day
  • No heat & humidity in December in Iona0
    No heat & humidity
  • 6.5 inches monthly rainfall in December in Iona6.5
    6.5 inches of monthly rainfall
  • No UV (maximum) index in December in Iona0
    No UV (Maximum) Index UV index
  • 50°F sea temperature in December in Iona50
    50°F sea temperature

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The December weather guide for Scotland (Iona) 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 warm is it in Iona in December?

Daytime temperatures usually reach 46°F in Iona in December, falling to 37°F at night.

How sunny is it in Iona in December?

There are normally 1 hour of bright sunshine each day in Iona in December - that's 11% of daylight hours.

How warm is the sea around Iona in December?

The average sea temperature around Iona in December is 50°F.

Does it rain in Iona in December?

There are usually 22 days with some rain in Iona in December and the average monthly rainfall is 6.5 inches.

Iona December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 08:35 15:54
Tuesday, 16th December 2025 08:54 15:48
Wednesday, 31st December 2025 08:59 15:58

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