December weather forecastSiemiony, Poland
December
Weather in December
The first month of the winter, December, is also an icy month in Siemiony, Poland, with an average temperature fluctuating between -2.1°C (28.2°F) and 0.8°C (33.4°F).Temperature
In December, the average high-temperature goes from a frosty 6.1°C (43°F) in November to an icy 0.8°C (33.4°F). December nights in Siemiony anticipate an average temperature of -2.1°C (28.2°F), a modest decline from the daytime.Humidity
The average relative humidity in December is 90%.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 43mm (1.69") of precipitation is accumulated. In Siemiony, during the entire year, the rain falls for 163.9 days and collects up to 512mm (20.16") of precipitation.Snowfall
Months with snowfall in Siemiony are January through April, October through December. In Siemiony, during December, snow falls for 15.2 days and regularly aggregates up to 121mm (4.76") of snow. In Siemiony, during the entire year, snow falls for 70.6 days and aggregates up to 580mm (22.83") of snow.Daylight
With an average of 7h and 42min of daylight, December has the shortest days of the year in Siemiony.On the first day of December, sunrise is at 07:18 and sunset at 15:18. On the last day of the month, sunrise is at 07:40 and sunset at 15:24 CET.
Sunshine
The average sunshine in December is 2.8h.UV index
The months with the lowest UV index in Siemiony are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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
Siemiony, 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).
