December weather forecastSędańsk, Poland
December
Weather in December
December, the first month of the winter in Sędańsk, is also an icy month, with an average temperature varying between 1.4°C (34.5°F) and -2°C (28.4°F).Temperature
In Sędańsk, entering December brings a subtle temperature decrement, reducing from November's frosty 6.1°C (43°F) to an icy 1.4°C (34.5°F). Sędańsk reports an average low-temperature of -2°C (28.4°F) during the subtly cooler December nights.Humidity
The average relative humidity in December is 89%.Rainfall
In Sędańsk, during December, the rain falls for 11.1 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, in Sędańsk, there are 155.1 rainfall days, and 414mm (16.3") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Sędańsk. In Sędańsk, in December, during 9.7 snowfall days, 76mm (2.99") of snow is typically accumulated. Throughout the year, there are 51.5 snowfall days, and 413mm (16.26") of snow is accumulated.Daylight
With an average of 7h and 36min of daylight, December has the shortest days of the year in Sędańsk.On the first day of the month, sunrise is at 07:30 and sunset at 15:20. On the last day of December, in Sędańsk, sunrise is at 07:52 and sunset at 15:26 CET.
Sunshine
In December, the average sunshine is 2.8h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 1 in December transforms into this advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sędańsk, Poland
- Average high temperature in December: 1.4°C
The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-1.1°C).
- Average low temperature in December: -2°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-4.7°C).
Average pressure in December
Sędańsk, Poland
- Average pressure in December: 1014.4mbar
The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in December
Sędańsk, Poland
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in December
Sędańsk, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
Sędańsk, Poland
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is July (53mm).
The driest months (with the least rainfall) are March and April (22mm).
Average rainfall days in December
Sędańsk, Poland
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in December
Sędańsk, Poland
- Average snowfall in December: 76mm
The month with the highest snowfall is January (132mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Sędańsk, Poland
- Average snowfall days in December: 9.7 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sędańsk, Poland
- Average daylight in December: 7h and 36min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 2h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Sędańsk, Poland
- Average sunshine days in December: 10.9 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is July (9 days).
Average UV index in December
Sędańsk, Poland
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Sędańsk, Poland
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Sędańsk, Poland
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).





