December weather forecastKoszki, Poland
December
Weather in December
December, the first month of the winter in Koszki, is also a wintry month, with temperature in the range of an average high of 0.8°C (33.4°F) and an average low of -2.1°C (28.2°F).Temperature
With December's onset, the weather shows a temperature decrease, transitioning from a chilly 6.1°C (43°F) in November to a cold 0.8°C (33.4°F). During the month of December, Koszki's average nighttime temperature closely mirrors its daytime counterpart, at a freezing cold -2.1°C (28.2°F).Humidity
In December, the average relative humidity in Koszki is 90%.Rainfall
In Koszki, in December, it is raining for 11.7 days, with typically 43mm (1.69") of accumulated precipitation. Throughout the year, there are 163.9 rainfall days, and 512mm (20.16") of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Koszki, Poland, in December, snow falls for 15.2 days, with typically accumulated 121mm (4.76") of snow. Throughout the year, there are 70.6 snowfall days, and 580mm (22.83") of snow is accumulated.Daylight
With an average of 7h and 42min of daylight, December has the shortest days of the year in Koszki.On the first day of December in Koszki, Poland, sunrise is at 07:16 and sunset at 15:15. On the last day of the month, sunrise is at 07:38 and sunset at 15:21 CET.
Sunshine
In December, the average sunshine in Koszki is 2.8h.UV index
The months with the lowest UV index in Koszki are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 1 in December transforms into this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Koszki, Poland
- Average high temperature in December: 0.8°C
The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (-1.4°C).
- Average low temperature in December: -2.1°C
The month with the highest average low temperature is July (13.9°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure in December
Koszki, Poland
- Average pressure in December: 1015.8mbar
The month with the highest atmospheric pressure is October (1018.3mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in December
Koszki, Poland
- Average wind speed in December: 14.2km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).
Average humidity in December
Koszki, Poland
- Average humidity in December: 90%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April and August (70%).
Average rainfall in December
Koszki, Poland
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Koszki, Poland
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Koszki, Poland
- Average snowfall in December: 121mm
The month with the highest snowfall is January (187mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Koszki, Poland
- Average snowfall days in December: 15.2 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Koszki, Poland
- Average daylight in December: 7h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 2h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).
Average sunshine days in December
Koszki, Poland
- Average sunshine days in December: 7.6 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is January (6.4 days).
Average UV index in December
Koszki, Poland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Koszki, Poland
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Koszki, 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).





