December weather forecastSiedlów, Poland
December
Weather in December
December, the first month of the winter in Siedlów, is also an icy month, with an average temperature fluctuating between -1.1°C (30°F) and 2.3°C (36.1°F).Temperature
The arrival of December corresponds with a shift in temperature, down from a frosty 7.6°C (45.7°F) in November to a wintry 2.3°C (36.1°F). Siedlów registers a subtle dip to an average of -1.1°C (30°F) during the nights of December.Humidity
In December, the average relative humidity is 86%.Rainfall
In December, in Siedlów, the rain falls for 11.2 days. Throughout December, 33mm (1.3") of precipitation is accumulated. In Siedlów, during the entire year, the rain falls for 152.2 days and collects up to 436mm (17.17") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Siedlów, during December, snow falls for 10.1 days and regularly aggregates up to 69mm (2.72") of snow. Throughout the year, in Siedlów, there are 46 snowfall days, and 327mm (12.87") of snow is accumulated.Daylight
The month with the shortest days in Siedlów is December, with an average of 8h and 0min of daylight.On the first day of December in Siedlów, sunrise is at 07:22 and sunset at 15:35. On the last day of the month, sunrise is at 07:43 and sunset at 15:41 CET.
Sunshine
The average sunshine in December in Siedlów 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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV 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
Siedlów, 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: -1.1°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 (-3.9°C).
Average pressure in December
Siedlów, Poland
- Average pressure in December: 1017.1mbar
The month with the highest atmospheric pressure is October (1018.4mbar).
The month with the lowest atmospheric pressure is July (1014mbar).
Average wind speed in December
Siedlów, Poland
- Average wind speed in December: 15.7km/h
The windiest month (with the highest average wind speed) is December (15.7km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in December
Siedlów, 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 (66%).
Average rainfall in December
Siedlów, Poland
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is July (59mm).
The driest months (with the least rainfall) are April and November (22mm).
Average rainfall days in December
Siedlów, Poland
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in December
Siedlów, Poland
- Average snowfall in December: 69mm
The month with the highest snowfall is January (107mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Siedlów, Poland
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Siedlów, 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 6min).
Average sunshine days in December
Siedlów, Poland
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in December
Siedlów, 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
Siedlów, Poland
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Siedlów, Poland
- Average visibility in December: 8km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).





