Measurements:
°C
°F
Helsinki
40°F
NE 14 mph
Feels like: 30°F
Precip: 0%
World Resorts Finland Helsinki Weather December Weather in Helsinki

Helsinki Weather: December

Average Day Temperature: 31.6°F
Average Night Temperature: 29.3°F
Sea Water Temperature: 37.4°F
Number of Sunny Days: 3 days
Sunshine Hours: 5.8 - 6.4 hours
Number of Rainy Days: 4 days
Precipitation Totals: 2.3 in
Number of Snowy Days: 1 day

Air Temperature in December, °F

Select Year: 2023 2022 2021

The highest day temperature in December 2023 was 37°F. The lowest night temperature was 5°F. The average values for day and night temperatures during December were 23.2°F и 22.6°F respectivly.

Helsinki Water Sea Temperature in December, °F

Select Year: 2024 2023 2022

The average sea surface temperature in December 2023 for Helsinki was 34.5°F. The maximum and minimum values were 31.6°F and 37.4°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation Totals in December, in

Precipitation total in December for Helsinki is 2.3 in. It makes december one of the most rainy months of the year.

Wind Speed in December, mph

The average wind speed in December is 12.8 mph. It makes December the most windy month of the year for Helsinki.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Helsinki in December is 1.6 hours.

Best Time to Visit Helsinki
The most sunny months:
July 15 days
June 15 days
May 14 days
The most warm months:
July 70.7 °F
August 69.2 °F
June 65.0 °F
Warmest sea temperature:
August 64.6 °F
July 63.1 °F
September 59.7 °F
The most cold months:
January 25.6 °F
February 26.7 °F
December 31.6 °F
The most rainy months:
August 5 days
September 4 days
July 4 days
The most windy months:
December 12 mph
November 12 mph
January 11 mph

Helsinki on the Weather Map

Finland Resorts:
NAME
Espoo +38
Helsinki +40
Imatra +34
Juvaskyla +34
Kemi +36
Koli National Park +30
Lahti +34
Lappeenranta +34
Oulu +36
Saariselka +32
Savolinna +32
Seinajoki +36
Turku +38
Vaasa +36
Vantaa +38
24 Hours Weather Forecast
Helsinki
Local time: 14:54
25 dec, wednesday
1500 40°F
NE
14 mph
1800 40°F
NE
11 mph
2100 40°F
NE
11 mph
26 dec, thursday
0000 42°F
NE
14 mph
0300 42°F
NE
14 mph
0600 42°F
NE
16 mph
0900 42°F
NE
17 mph
1200 42°F
NE
14 mph