December weather forecastSieluń, Poland
December
Weather in December
December, the first month of the winter in Sieluń, is still a cold month, with an average temperature ranging between max 1.5°C (34.7°F) and min -1.8°C (28.8°F).Temperature
As December commences, the average high-temperature subtly reduces, transitioning from a frosty 6.3°C (43.3°F) in November to an icy 1.5°C (34.7°F). Throughout December, Sieluń records a steady low-temperature average of -1.8°C (28.8°F), a minor decrease from its daytime counterpart.Humidity
The average relative humidity in December is 89%.Rainfall
In Sieluń, in December, during 10.5 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Sieluń, during the entire year, the rain falls for 148.8 days and collects up to 426mm (16.77") of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 9.8 days. Throughout December, 64mm (2.52") of snow is accumulated. In Sieluń, during the entire year, snow falls for 40.6 days and aggregates up to 274mm (10.79") of snow.Daylight
The month with the shortest days is December, with an average of 7h and 42min of daylight.On the first day of the month, sunrise is at 07:25 and sunset at 15:21. On the last day of December, sunrise is at 07:47 and sunset at 15:27 CET.
Sunshine
In Sieluń, the average sunshine in December is 3h.UV index
The months with the lowest UV index are January, 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 radiation for average individuals.Note: In December, a regular UV index of 1 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Experience reduced UV exposure by about half when donning a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sieluń, Poland
- Average high temperature in December: 1.5°C
The warmest months (with the highest average high temperature) are July and August (24.3°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in December: -1.8°C
The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in December
Sieluń, Poland
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in December
Sieluń, Poland
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is December (13.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in December
Sieluń, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and August (69%).
Average rainfall in December
Sieluń, Poland
- Average rainfall in December: 28mm
The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in December
Sieluń, Poland
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Sieluń, Poland
- Average snowfall in December: 64mm
The month with the highest snowfall is January (79mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Sieluń, Poland
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sieluń, 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: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 30min).
Average sunshine days in December
Sieluń, Poland
- Average sunshine days in December: 12.5 days
The months with the most sunshine days are March and October (16.3 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in December
Sieluń, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Sieluń, Poland
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Sieluń, Poland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
