December · Finland
Best time to visit Helsinki in December Weather, crowds & prices
Weather in Helsinki in December
Average temperature -2°C, 82 mm of rain, about 0 days with 6+ hours of sunshine and 88% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
2.7/10
Ranked #12 of 12 months
- Avg temp
- -2°C
- Rainfall
- 82 mm
- Humidity
- 88%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Helsinki scores 2.7/10 for sightseeing and cultural travel - ranked #12 of 12. Expect around -2°C, 82 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Helsinki spreads across a Baltic archipelago, with a design-led center, ferry-linked islands, and a strong sauna habit.
December in Helsinki — the hardest end of the year
At -2°C (29°F) this is proper winter weather in December: layer up and split the day between outdoor highlights and indoor stops.
82 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 6 hours of daylight.
That is 2.7/10 on the same scale — 12th of 12 months, versus 9.6/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, June is materially better in Helsinki — 6.9 points higher on the same scale.
Frequently asked
- What is the weather like in Helsinki in December?
- In December, Helsinki averages -2°C, 82 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 2.7/10.
- Is December a good time to visit Helsinki?
- December earns a 2.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Helsinki in December?
- Expect about 82 mm of rain in December. Average humidity is 88% and there are about 0 days with 6+ hours of sunshine.
Curated in Helsinki
Tickets & experiences
Things to do in Helsinki
Helsinki, Finland. Live activities and tours from GetYourGuide, matched to this destination.