December weather forecastSiemień, Poland
December
Weather in December
The first month of the winter, December, is still a cold month in Siemień, Poland, with an average temperature varying between -1.9°C (28.6°F) and 1.5°C (34.7°F).Temperature
The shift from November to December corresponds with a decrease in the average high-temperature, down to a cold 1.5°C (34.7°F) from a chilly 6.8°C (44.2°F). In December, a low-temperature average of -1.9°C (28.6°F) is characteristic of Siemień, marking a minor shift from daytime temperatures.Humidity
The average relative humidity in December is 88%.Rainfall
In Siemień, in December, it is raining for 10.1 days, with typically 37mm (1.46") of accumulated precipitation. In Siemień, during the entire year, the rain falls for 149.5 days and collects up to 457mm (17.99") of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 13.1 days. Throughout December, 114mm (4.49") of snow is accumulated. In Siemień, Poland, during the entire year, snow falls for 57.8 days and aggregates up to 509mm (20.04") of snow.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 07:13 and sunset at 15:22. On the last day of December, in Siemień, Poland, sunrise is at 07:35 and sunset at 15:29 CET.
Sunshine
In December, the average sunshine is 3h.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 minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Siemień, Poland
- Average high temperature in December: 1.5°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in December: -1.9°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).
Average pressure in December
Siemień, Poland
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in December
Siemień, Poland
- Average wind speed in December: 13.4km/h
The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in December
Siemień, Poland
- Average humidity in December: 88%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Siemień, Poland
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is May (62mm).
The driest month (with the least rainfall) is November (24mm).
Average rainfall days in December
Siemień, Poland
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in December
Siemień, Poland
- Average snowfall in December: 114mm
The month with the highest snowfall is January (158mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Siemień, Poland
- Average snowfall days in December: 13.1 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Siemień, Poland
- Average daylight in December: 7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Siemień, Poland
- Average sunshine days in December: 9.9 days
The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in December
Siemień, Poland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Siemień, Poland
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Siemień, Poland
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).
