December weather forecastSiemnice, Poland
December
Weather in December
The first month of the winter, December, is also a wintry month in Siemnice, Poland, with an average temperature varying between -2.3°C (27.9°F) and 1.4°C (34.5°F).Temperature
Arrival of December comes with a reduction in the average high-temperature, falling from a chilly 7°C (44.6°F) in November to a cold 1.4°C (34.5°F). In Siemnice, nights during December observe an average temperature decrease to a subzero cold -2.3°C (27.9°F).Humidity
In Siemnice, the average relative humidity in December is 89%.Rainfall
In Siemnice, in December, during 7.6 rainfall days, 23mm (0.91") of precipitation is typically accumulated. In Siemnice, during the entire year, the rain falls for 135.9 days and collects up to 341mm (13.43") of precipitation.Snowfall
January through April, October through December are months with snowfall. In Siemnice, during December, snow falls for 13 days and regularly aggregates up to 73mm (2.87") of snow. In Siemnice, during the entire year, snow falls for 58.3 days and aggregates up to 313mm (12.32") of snow.Daylight
The month with the shortest days in Siemnice is December, with an average of 8h and 6min of daylight.On the first day of the month, sunrise is at 07:05 and sunset at 15:24. On the last day of December, sunrise is at 07:26 and sunset at 15:30 CET.
Sunshine
The average sunshine in December is 3.1h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, the UV index of 1 transforms into the following advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Siemnice, Poland
- Average high temperature in December: 1.4°C
The warmest month (with the highest average high temperature) is August (25.2°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in December: -2.3°C
The month with the highest average low temperature is July (14°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).
Average pressure in December
Siemnice, Poland
- Average pressure in December: 1017.8mbar
The month with the highest atmospheric pressure is October (1019.1mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in December
Siemnice, Poland
- Average wind speed in December: 13.9km/h
The windiest month (with the highest average wind speed) is December (13.9km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).
Average humidity in December
Siemnice, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Siemnice, Poland
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is May (52mm).
The driest month (with the least rainfall) is November (15mm).
Average rainfall days in December
Siemnice, Poland
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in December
Siemnice, Poland
- Average snowfall in December: 73mm
The month with the highest snowfall is January (97mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Siemnice, Poland
- Average snowfall days in December: 13 days
The month with the highest number of snowfall days is January (16.3 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
Siemnice, Poland
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 3h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Siemnice, Poland
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Siemnice, 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 and December (UV index 1).
Average cloud cover in December
Siemnice, Poland
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Siemnice, 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).
