December weather forecastSlupsk, Poland
December
Weather in December
The highlight of December's weather in Slupsk is the return of winter with increased snowfall and an average temperature dropping to 3.2°C (37.8°F). The city gets draped in snow, offering a white canvas that typifies the waning days of the year. December claims the shift from the mild cold of November to the harsh winters the city is known for. Curled up warm indoors or reveling in the snow outside, people welcome the festive spirit in style.Temperature
As December arrives, Slupsk's weather displays a minor decrease in high-temperatures, transitioning from November's frosty 7.5°C (45.5°F) to a wintry 3.2°C (37.8°F). December nights cool to an average low-temperature of 0.2°C (32.4°F), a marginal decrease from its daytime equivalent.Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 86%.Rainfall
In December, the rain falls for 11.9 days. Throughout December, 36mm (1.42") of precipitation is accumulated. In Slupsk, Poland, during the entire year, the rain falls for 129.2 days and collects up to 353mm (13.9") of precipitation.Snowfall
Months with snowfall are January through May, November and December. In December, it is snowing for 6.9 days. Throughout December, 33mm (1.3") of snow is accumulated. Throughout the year, there are 33.3 snowfall days, and 196mm (7.72") of snow is accumulated.Daylight
December has the shortest days of the year in Slupsk, with an average of 7h and 24min of daylight.On the first day of the month, sunrise is at 07:50 and sunset at 15:31. On the last day of December, sunrise is at 08:13 and sunset at 15:36 CET.
Sunshine
January and December, with an average of 2.8h of sunshine, are months with the least sunshine.UV index
November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 1 during December leads to these advisories:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Slupsk, Poland
- Average high temperature in December: 3.2°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (1.2°C).
- Average low temperature in December: 0.2°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-1.7°C).
Average pressure in December
Slupsk, Poland
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is October (1016.3mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).
Average wind speed in December
Slupsk, Poland
- Average wind speed in December: 19.4km/h
The windiest month (with the highest average wind speed) is December (19.4km/h).
The calmest month (with the lowest average wind speed) is August (13.9km/h).
Average humidity in December
Slupsk, Poland
- Average humidity in December: 86%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
Slupsk, Poland
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is July (38mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in December
Slupsk, Poland
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is April (8 days).
Average snowfall in December
Slupsk, Poland
- Average snowfall in December: 33mm
The month with the highest snowfall is January (72mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Slupsk, Poland
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Slupsk, Poland
- Average daylight in December: 7h and 24min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 2h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 2h and 48min).
Average sunshine days in December
Slupsk, Poland
- Average sunshine days in December: 12 days
The months with the most sunshine days are April and May (19.8 days).
The month with the least sunshine days is December (12 days).
Average UV index in December
Slupsk, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Slupsk, Poland
- Average cloud cover in December: 72
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Slupsk, Poland
- Average visibility in December: 9km
The months with the highest visibility are April, June, August, September and October (10km).
The months with the lowest visibility are January, February, March, May, July, November and December (9km).
