When to go · Mäntsälä
Mäntsälä in December
Good month. Outside the best window (May–Sep). Across Finland: Rovaniemi's Christmas peak, polar night in the north; Helsinki Christmas market; closures 24–26 Dec.
Key facts
- Verdict
- Good
- Temperature
- 1°C (34°F)34°F (1°C) / −3°C (27°F)27°F (−3°C)
- average high / low
- Rain days
- 5
- Crowds
- High
- Finland overall
- Prices
- High
- Finland overall
Verdict
Outside the best window (May–Sep). Across Finland: Rovaniemi's Christmas peak, polar night in the north; Helsinki Christmas market; closures 24–26 Dec.
Is another month better than December?
December is rated good. These months rate higher:
Weather in December
- MäntsäläHighs around 1 °C (34 °F), lows around -3 °C (27 °F), rain on about 5 daysHighs around 34 °F (1 °C), lows around 27 °F (-3 °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 Mäntsälä, side by side.
Verdict
Dec: Good
May: Great (better)
Daytime high
Dec: 1 °C (34 °F)34 °F (1 °C)
May: 15 °C (59 °F)59 °F (15 °C)
Night low
Dec: -3 °C (27 °F)27 °F (-3 °C)
May: 7 °C (45 °F)45 °F (7 °C)
Rain days
Dec: 5 (better)
May: 10
Crowds
Dec: High
May: Low
Prices
Dec: High
May: Medium
Festivals listed
Dec: 1
May: 0
December: Outside the best window (May–Sep). Across Finland: Rovaniemi's Christmas peak, polar night in the north; Helsinki Christmas market; closures 24–26 Dec.
May: Inside Mäntsälä's best window: May–Sep.
Mäntsälä: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings