Weather in Helsinki in December 2024
- December is usually the wettest month of the year in Helsinki;
Average weather
Average temperature in Helsinki in December
The expected average maximum temperature in December is +30°F with a maximum of +41°F and a minimum of +9°F.
The average maximum temperature goes up 22% by the end of the month, compared with the beginning of the month, from +34°F to +41°F.
Is Helsinki warm or cold in December?
Helsinki is typically chill in December.
Maximum temperatures go down compared to the previous month from +39°F to +32°F. The minimum temperature also goes down from +32°F to +25°F.
Pack a jumper and a jacket as there will be cooler temperatures.
December is one of the coolest months in Helsinki, here is the comparison with other months:
Climate in Helsinki in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +39°F | +32°F | +28°F | ||||
| Min. temperature | ||||||
| +1°F | -11°F | -27°F | ||||
| Max. temperature | ||||||
| +55°F | +50°F | +48°F | ||||
| Rainfall | ||||||
| 55 mm | 27 mm | 12 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 86% | 87% | 86% | ||||
| Air pressure | ||||||
| 1010 HPa | 1007 HPa | 1008 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 3 | ||||
| Cloudy days | ||||||
| 18 | 20 | 21 | ||||
| Rainy days | ||||||
| 7 | 3 | 1 | ||||
| Snowy days | ||||||
| 3 | 6 | 6 | ||||
December weather is still as bad as in November. It’s getting colder in December. From +39°F in the day, the average maximum temperature lowers to +32°F. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 55 mm to 27 mm. Humidity rises from 86% to 87%. The average wind speed doesn’t change much during December, staying around 4 m/s. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
January brings much the same weather, it remains bad.
Wind
The average wind speed is 3 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Helsinki is gradually increasing during December, going from 3 m/s to 7 m/s over the course of the month.
Rain
Snow
December is one of the snowiest months in Helsinki.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Helsinki?
Climate Change Over the Years
The climate in Helsinki in December has not changed that much over the last 43 years.
The average temperature was the lowest in 2002 (+26°F) and the highest in 2006 (+43°F). The driest year was 2002 with only 1 mm of rainfall, and the wettest year was 2010 with 0 mm.
FAQ
Is December a good time to visit Helsinki?
Can you sunbathe in Helsinki in December?
Is Helsinki rainy in December?
Is it sunny in Helsinki in December?
Other cities in Finland
Monthly weather in Helsinki
Source of the data
For this page, we’ve looked at the typical weather in Helsinki, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.