December weather forecastSiercz, Poland
December
Weather in December
December, the first month of the winter in Siercz, is also an icy month, with an average temperature fluctuating between -0.4°C (31.3°F) and 3.4°C (38.1°F).Temperature
The arrival of December corresponds with a light shift in temperature, down from a frosty 7.5°C (45.5°F) in November to a wintry 3.4°C (38.1°F). In December, Siercz's nights cool slightly to a consistent average temperature of -0.4°C (31.3°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 89%.Rainfall
In Siercz, in December, it is raining for 10.1 days, with typically 20mm (0.79") of accumulated precipitation. In Siercz, during the entire year, the rain falls for 140.9 days and collects up to 327mm (12.87") of precipitation.Snowfall
January through April, November and December are months with snowfall in Siercz. In December, it is snowing for 4.4 days. Throughout December, 27mm (1.06") of snow is accumulated. Throughout the year, in Siercz, Poland, there are 23.1 snowfall days, and 128mm (5.04") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 48min of daylight.On the first day of December, sunrise is at 07:45 and sunset at 15:47. On the last day of the month, sunrise is at 08:07 and sunset at 15:53 CET.
Sunshine
The average sunshine in December in Siercz, Poland, is 3.2h.UV index
The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Consider carefully! The reflective quality of snow 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
Siercz, Poland
- Average high temperature in December: 3.4°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (1.5°C).
- Average low temperature in December: -0.4°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 (-2.2°C).
Average pressure in December
Siercz, Poland
- Average pressure in December: 1015.1mbar
The month with the highest atmospheric pressure is October (1017.2mbar).
The months with the lowest atmospheric pressure are July and November (1014.1mbar).
Average wind speed in December
Siercz, Poland
- Average wind speed in December: 14.5km/h
The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in December
Siercz, Poland
- Average humidity in December: 89%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Siercz, Poland
- Average rainfall in December: 20mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in December
Siercz, Poland
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Siercz, Poland
- Average snowfall in December: 27mm
The month with the highest snowfall is January (34mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Siercz, Poland
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is January (6.9 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
Siercz, Poland
- Average daylight in December: 7h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in December: 3h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Siercz, Poland
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in December
Siercz, Poland
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in December
Siercz, Poland
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Siercz, Poland
- Average visibility in December: 8km
The month with the highest visibility is June (10km).
The month with the lowest visibility is January (7km).
