December weather forecastSąpolnica, Poland
December
Weather in December
The first month of the winter, December, is also a wintry month in Sąpolnica, Poland, with an average temperature fluctuating between 3.1°C (37.6°F) and -0.4°C (31.3°F).Temperature
December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's frosty 7.5°C (45.5°F) to an icy 3.1°C (37.6°F). During December, Sąpolnica's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a subzero cold -0.4°C (31.3°F).Humidity
January and December, with an average relative humidity of 89%, are the most humid months.Rainfall
In Sąpolnica, in December, it is raining for 15.1 days, with typically 45mm (1.77") of accumulated precipitation. In Sąpolnica, during the entire year, the rain falls for 161.6 days and collects up to 423mm (16.65") of precipitation.Snowfall
January through April, November and December are months with snowfall in Sąpolnica. In Sąpolnica, in December, during 9.1 snowfall days, 61mm (2.4") of snow is typically accumulated. Throughout the year, in Sąpolnica, there are 40.2 snowfall days, and 268mm (10.55") of snow is accumulated.Daylight
The month with the shortest days in Sąpolnica is December, with an average of 7h and 36min of daylight.On the first day of the month, sunrise is at 07:53 and sunset at 15:43. On the last day of December, in Sąpolnica, sunrise is at 08:16 and sunset at 15:49 CET.
Sunshine
In December, the average sunshine is 2.9h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Sąpolnica. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 1 during December translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sąpolnica, Poland
- Average high temperature in December: 3.1°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in December: -0.4°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-2.2°C).
Average pressure in December
Sąpolnica, Poland
- Average pressure in December: 1013.7mbar
The months with the highest atmospheric pressure are September and October (1016.5mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in December
Sąpolnica, Poland
- Average wind speed in December: 15.9km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is August (12.2km/h).
Average humidity in December
Sąpolnica, Poland
- Average humidity in December: 89%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Sąpolnica, Poland
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is January (48mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in December
Sąpolnica, Poland
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in December
Sąpolnica, Poland
- Average snowfall in December: 61mm
The month with the highest snowfall is January (88mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Sąpolnica, Poland
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sąpolnica, 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 54min
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 48min).
Average sunshine days in December
Sąpolnica, Poland
- Average sunshine days in December: 8.3 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is December (8.3 days).
Average UV index in December
Sąpolnica, 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, November and December (UV index 1).
Average cloud cover in December
Sąpolnica, Poland
- Average cloud cover in December: 73
The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Sąpolnica, Poland
- Average visibility in December: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, November and December (8km).





