December weather forecastTrzeciny, Poland
December
Weather in December
December, the first month of the winter in Trzeciny, is also an icy month, with temperature in the range of an average low of -1.9°C (28.6°F) and an average high of 1.4°C (34.5°F).Temperature
December brings a minor shift in the average high-temperature, adjusting from a chilly 6.1°C (43°F) in November to a cold 1.4°C (34.5°F). Nights in December showcase an average temperature of -1.9°C (28.6°F), slightly cooler than the daytime.Humidity
The average relative humidity in December is 89%.Rainfall
In Trzeciny, during December, the rain falls for 8.3 days and regularly aggregates up to 19mm (0.75") of precipitation. In Trzeciny, during the entire year, the rain falls for 130.4 days and collects up to 284mm (11.18") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Trzeciny, during December, snow falls for 11.3 days and regularly aggregates up to 49mm (1.93") of snow. In Trzeciny, during the entire year, snow falls for 54.2 days and aggregates up to 237mm (9.33") of snow.Daylight
With an average of 7h and 42min of daylight, December has the shortest days of the year in Trzeciny.On the first day of the month, sunrise is at 07:20 and sunset at 15:18. On the last day of December, sunrise is at 07:42 and sunset at 15:24 CET.
Sunshine
The average sunshine in December is 2.7h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Trzeciny, Poland
- Average high temperature in December: 1.4°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in December: -1.9°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is January (-4.6°C).
Average pressure in December
Trzeciny, Poland
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in December
Trzeciny, Poland
- Average wind speed in December: 13km/h
The windiest month (with the highest average wind speed) is December (13km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in December
Trzeciny, 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 (69%).
Average rainfall in December
Trzeciny, Poland
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is May (42mm).
The driest months (with the least rainfall) are February and March (14mm).
Average rainfall days in December
Trzeciny, Poland
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Trzeciny, Poland
- Average snowfall in December: 49mm
The month with the highest snowfall is January (75mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Trzeciny, Poland
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Trzeciny, 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 42min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).
Average sunshine days in December
Trzeciny, Poland
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is February (10.9 days).
Average UV index in December
Trzeciny, 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 January, November and December (UV index 1).
Average cloud cover in December
Trzeciny, Poland
- Average cloud cover in December: 74
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Trzeciny, 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).





