Weather in December
December holds the reigns of winter firmly with sea temperatures dropping down to 3.6°C (38.5°F). Porvoo adapts seamlessly to the winter, with streets brightened by Christmas lights and markets offering an array of festive goods. The city entertains its locals and visitors with various winter events, including the much-awaited Christmas market. Despite decreased daylight hours, the spirit of Christmas fills the city, making Porvoo, a winter wonderland.
Note: While swimming, this is identified as life-endangering and very dangerous. The water's freezing temperatures cause intense discomfort and induce rapid hyperventilation. A specialized swimsuit is mandatory to mitigate thermal damage.
On the first day of the month, sunrise is at 08:56 and sunset at 15:16. On the last day of December, in Porvoo, sunrise is at 09:23 and sunset at 15:17 EET.
Sea temperature
In December, the average sea temperature in Porvoo is 3.6°C (38.5°F).Note: While swimming, this is identified as life-endangering and very dangerous. The water's freezing temperatures cause intense discomfort and induce rapid hyperventilation. A specialized swimsuit is mandatory to mitigate thermal damage.
Daylight
December has the shortest days of the year, with an average of 5h and 54min of daylight.On the first day of the month, sunrise is at 08:56 and sunset at 15:16. On the last day of December, in Porvoo, sunrise is at 09:23 and sunset at 15:17 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
What is the sea temperature in December in Porvoo?
In Porvoo, the average seawater temperature in December is 3.6°C (38.5°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.
What is the month with the shortest days in Porvoo?
With an average of 5h and 54min of daylight, December has the shortest days of the year in Porvoo, Finland.
What is the average length of the day in December in Porvoo?
In Porvoo, Finland, the average day length in December is 5h and 55min.
When are sunrise and sunset in December in Porvoo?
On the first day of December, sunrise is at 08:56 and sunset at 15:16. On the last day of the month, sunrise is at 09:23 and sunset at 15:17 EET.
Average sea temperature in December
Porvoo, Finland
- Average sea temperature in December: 3.6°C
The best months for swimming (with the highest average sea temperature) are July and August (18.7°C).
The coldest months (with the lowest average sea temperature) are February and March (-0.2°C).
Average daylight in December
Porvoo, Finland
- Average daylight in December: 5h and 5min
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).
Porvoo, Finland
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