Argostoli weather in December 2025

Expect daytime maximum temperatures of 59°F in Argostoli, Kefalonia in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 15 days with some rainfall and typically 7.4 inches of rainfall in the month.

  • 59°F maximum daytime temperature in December in Argostoli59
    59°F max day temperature
  • 4 hours of sunshine per day
  • 15 days with some rainfall in December in Argostoli15
    15 days with some rainfall
  • 46°F minimum night-time temperature in December in Argostoli46
    46°F min night temperature
  • 10 hours of daylight per day in December in Argostoli10
    10 hours of daylight per day
  • No heat & humidity in December in Argostoli0
    No heat & humidity
  • 7.4 inches monthly rainfall in December in Argostoli7.4
    7.4 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Argostoli2
    2 (Low) UV index
  • 63°F sea temperature in December in Argostoli63
    63°F sea temperature

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The December weather guide for Kefalonia (Argostoli) 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 warm is it in Argostoli in December?

Daytime temperatures usually reach 59°F in Argostoli in December, falling to 46°F at night.

How sunny is it in Argostoli in December?

There are normally 4 hours of bright sunshine each day in Argostoli in December - that's 45% of daylight hours.

How warm is the sea around Argostoli in December?

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

Does it rain in Argostoli in December?

There are usually 15 days with some rain in Argostoli in December and the average monthly rainfall is 7.4 inches.

Argostoli December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:36 17:18
Tuesday, 16th December 2025 07:48 17:19
Wednesday, 31st December 2025 07:54 17:28

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