December weather forecastSiomki, Poland
December
Weather in December
The first month of the winter, December, is also a wintry month in Siomki, Poland, with an average temperature varying between -1°C (30.2°F) and 2.3°C (36.1°F).Temperature
A shift in Siomki's weather is observed as November turns into December, with the average high temperature reducing from a frosty 7.5°C (45.5°F) to a cold 2.3°C (36.1°F). Siomki maintains an average of approximately a subzero cold -1°C (30.2°F) during December nights, with only a minimal decrease from the daytime temperature.Humidity
The average relative humidity in December is 86%.Rainfall
In December, the rain falls for 11 days. Throughout December, 30mm (1.18") of precipitation is accumulated. In Siomki, during the entire year, the rain falls for 146.1 days and collects up to 417mm (16.42") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Siomki, during December, snow falls for 10 days and regularly aggregates up to 65mm (2.56") of snow. Throughout the year, there are 48.3 snowfall days, and 361mm (14.21") of snow is accumulated.Daylight
December has the shortest days of the year in Siomki, with an average of 8h and 0min of daylight.On the first day of December, sunrise is at 07:24 and sunset at 15:36. On the last day of the month, sunrise is at 07:46 and sunset at 15:43 CET.
Sunshine
In December, the average sunshine is 3.5h.UV index
January, November 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 unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Siomki, Poland
- Average high temperature in December: 2.3°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (0°C).
- Average low temperature in December: -1°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (-3.7°C).
Average pressure in December
Siomki, Poland
- Average pressure in December: 1017mbar
The month with the highest atmospheric pressure is October (1018.3mbar).
The month with the lowest atmospheric pressure is July (1014mbar).
Average wind speed in December
Siomki, Poland
- Average wind speed in December: 15.5km/h
The windiest month (with the highest average wind speed) is December (15.5km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Siomki, Poland
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Siomki, Poland
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is May (56mm).
The driest month (with the least rainfall) is November (22mm).
Average rainfall days in December
Siomki, Poland
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Siomki, Poland
- Average snowfall in December: 65mm
The month with the highest snowfall is January (124mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Siomki, Poland
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Siomki, Poland
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 3h and 0min).
Average sunshine days in December
Siomki, Poland
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is August (17.3 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Siomki, 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, November and December (UV index 1).
Average cloud cover in December
Siomki, Poland
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Siomki, Poland
- Average visibility in December: 8km
The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (7km).
