When to go · Jämsä
Jämsä in December
Great month. Inside Jämsä's best window: Dec–Mar for snow; Jun–Aug for mountain‑bike festivals.
Key facts
- Verdict
- Great
- Temperature
- −3°C (27°F)27°F (−3°C) / −10°C (14°F)14°F (−10°C)
- average high / low
- Rain days
- 5
- Crowds
- High
- Finland overall
- Prices
- High
- Finland overall
Verdict
Inside Jämsä's best window: Dec–Mar for snow; Jun–Aug for mountain‑bike festivals.
Is another month better than December?
No other month rates higher than December for Jämsä in this guide.
Weather in December
- JämsäHighs around -3 °C (27 °F), lows around -10 °C (14 °F), rain on about 5 daysHighs around 27 °F (-3 °C), lows around 14 °F (-10 °C), rain on about 5 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas big impact
24–26 Dec · Finland
Christmas Eve is the main day; most things closed; Lapland at peak.
Crowds and prices
- Crowds · Finland overall
- High
- Prices · Finland overall
- High
Finland overall: Rovaniemi's Christmas peak, polar night in the north; Helsinki Christmas market; closures 24–26 Dec.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Jämsä, side by side.
Verdict
Dec: Great
Jan: Great
Daytime high
Dec: -3 °C (27 °F)27 °F (-3 °C)
Jan: -5 °C (23 °F)23 °F (-5 °C)
Night low
Dec: -10 °C (14 °F)14 °F (-10 °C)
Jan: -12 °C (10 °F)10 °F (-12 °C)
Rain days
Dec: 5
Jan: 5
Crowds
Dec: High
Jan: Medium
Prices
Dec: High
Jan: Medium
Festivals listed
Dec: 1
Jan: 0
December: Inside Jämsä's best window: Dec–Mar for snow; Jun–Aug for mountain‑bike festivals.
January: Inside Jämsä's best window: Dec–Mar for snow; Jun–Aug for mountain‑bike festivals.
Jämsä: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings