December weather forecastPernå, Finland
December
Weather in December
Sea temperature
In Pernå, Finland, the average seawater temperature in December is 3.5°C (38.3°F).Note: In the realm of swimming, this state is extremely cold, treacherous, and life-threatening. Without properly insulated waterproof clothing, hypothermia develops almost immediately.
Daylight
December has the shortest days of the year, with an average of 5h and 54min of daylight.On the first day of December in Pernå, sunrise is at 08:55 and sunset at 15:14. On the last day of the month, sunrise is at 09:22 and sunset at 15:15 EET.
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Pernå, the average seawater temperature in December is 3.5°C (38.3°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.
December has the shortest days of the year, with an average of 5h and 54min of daylight.
The average day length in December is 5h and 54min.
In December, on the first day of the month, sunrise is at 08:55 and sunset at 15:14. On the last day of the month, in Pernå, Finland, sunrise is at 09:22 and sunset at 15:15 EET.
Average sea temperature in December
Pernå, Finland
- Average sea temperature in December: 3.5°C
The best month for swimming (with the highest average sea temperature) is July (18.8°C).
The coldest months (with the lowest average sea temperature) are February and March (-0.1°C).
Average daylight in December
Pernå, Finland
- Average daylight in December: 5h and 54min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
