Helsinki weather in December 2021

  • -1°C maximum daytime temperature in December in Helsinki-1
    -1°C max day temperature
  • 1 hour of sunshine per day
  • 22 days with some rainfall in December in Helsinki22
    22 days with some rainfall
  • -7°C minimum night-time temperature in December in Helsinki-7
    -7°C min night temperature
  • 6 hours of daylight per day in December in Helsinki6
    6 hours of daylight per day
  • No heat & humidity in December in Helsinki0
    No heat & humidity
  • 58 mm monthly rainfall in December in Helsinki58
    58 mm of monthly rainfall
  • No UV (maximum) index in December in Helsinki0
    No UV (Maximum) Index UV index
  • 3°C sea temperature in December in Helsinki3
    3°C sea temperature
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The December weather guide for Finland (Helsinki) 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.

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Metric (°C / mm)  |  Imperial (°F / inches)

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How cold is it in Helsinki in December?

Daytime temperatures usually reach -1°C in Helsinki in December, falling to -7°C at night.

How sunny is it in Helsinki in December?

There are normally 1 hour of bright sunshine each day in Helsinki in December - that's 12% of daylight hours.

Is the sea cold around Helsinki in December?

The average sea temperature around Helsinki in December is 3°C.

Does it rain in Helsinki in December?

There are usually 22 days with some rain in Helsinki in December and the average monthly rainfall is 58mm. Rain may fall as snow in this month.

Helsinki December sunrise & sunset times

Browse the sunrise and sunset times for Helsinki in December 2021. Select a month to view Helsinki sunrise and sunset times for the next 12 months.


Date Sunrise times Sunset times
Wednesday, 1st December 2021 08:57 15:21
Thursday, 16th December 2021 09:20 15:12
Friday, 31st December 2021 09:24 15:22

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