Weather in Suomi in joulukuu
Country-wide climate normals across 15 cities in Suomi.
How Hot Is Suomi in joulukuu?
Winter touches all of Suomi uniformly: typical -1°C highs from Rovaniemi to Turku.
Sunshine in Suomi in joulukuu
Limited sunshine and short daylight define Suomi's December: Helsinki averages just 0.7h of direct sun, with the sun up between 9:15 am and 3:15 pm. The grey, overcast pattern is consistent across most of the country, with little regional variation in cloud cover.
Does It Rain In Suomi In joulukuu?
Moderate rainfall defines Suomi's December: Helsinki averages 57mm across 13 days. Some regions see meaningfully wetter weather, especially coastal or mountain-facing areas, while continental interiors tend toward the drier end of the spectrum.
Is Suomi Humid In joulukuu?
Saturated air defines Suomi's December: humidity at 90% in Helsinki, with the country as a whole feeling muggy and oppressive. The air practically drips after rain, and even shaded outdoor areas feel warm and clammy. Plan indoor time during the most humid afternoon hours.
Wind In Suomi In joulukuu
Gentle steady winds define Suomi's December: Helsinki averages 19 kph, with conditions consistent across most regions. The breeze keeps warm days bearable without being a nuisance.
Does It Snow In Suomi In joulukuu?
Regular snowfall covers Suomi in December: 4.4 snow days in Helsinki, with higher elevations and northern regions seeing even more. Plan around plowed roads and chained tires in mountain regions; lowland cities see lighter accumulation but still regular snow events.
Cloud Cover In Suomi In joulukuu
Heavy overcast covers Suomi in December: 81% cloud cover in Helsinki, with similar grey conditions in most regions. Direct sun is rare, and the pattern is persistent across the country. Coastal and northern regions feel especially heavy.