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Helsinki weather in December 2021
- -1-1°C max day temperature
- 2222 days with some rainfall
- -7-7°C min night temperature
- 66 hours of daylight per day
- 0No heat & humidity
- 5858 mm of monthly rainfall
- 0No UV (Maximum) Index UV index
- 33°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.
Metric (°C / mm) | Imperial (°F / inches)
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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