December weather forecastŚleszyn, Poland
December
Weather in December
The first month of the winter, December, is also a wintry month in Śleszyn, Poland, with an average temperature varying between -0.9°C (30.4°F) and 2.5°C (36.5°F).Temperature
December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a frosty 7.4°C (45.3°F) in November to an icy 2.5°C (36.5°F). Throughout December nights, Śleszyn records a consistent low-temperature averaging a freezing cold -0.9°C (30.4°F).Humidity
In December, the average relative humidity is 87%.Rainfall
In December, in Śleszyn, the rain falls for 11.3 days. Throughout December, 27mm (1.06") of precipitation is accumulated. Throughout the year, there are 147.5 rainfall days, and 381mm (15") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Śleszyn, Poland. In Śleszyn, during December, snow falls for 8.5 days and regularly aggregates up to 45mm (1.77") of snow. Throughout the year, in Śleszyn, Poland, there are 38.2 snowfall days, and 241mm (9.49") of snow is accumulated.Daylight
With an average of 7h and 48min of daylight, December has the shortest days of the year in Śleszyn, Poland.On the first day of December in Śleszyn, sunrise is at 07:28 and sunset at 15:32. On the last day of the month, sunrise is at 07:50 and sunset at 15:38 CET.
Sunshine
The average sunshine in December is 3.4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 1 during December translates into the following guidance:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Śleszyn, Poland
- Average high temperature in December: 2.5°C
The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (0.2°C).
- Average low temperature in December: -0.9°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).
Average pressure in December
Śleszyn, Poland
- Average pressure in December: 1016.1mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.7mbar).
Average wind speed in December
Śleszyn, 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 (11.2km/h).
Average humidity in December
Śleszyn, Poland
- Average humidity in December: 87%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Śleszyn, Poland
- Average rainfall in December: 27mm
The wettest months (with the highest rainfall) are May and June (50mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Śleszyn, Poland
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Śleszyn, Poland
- Average snowfall in December: 45mm
The month with the highest snowfall is January (83mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Śleszyn, Poland
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Śleszyn, 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 24min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Śleszyn, Poland
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in December
Śleszyn, Poland
- Average UV index in December: 1
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 December (UV index 1).
Average cloud cover in December
Śleszyn, Poland
- Average cloud cover in December: 68
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
Śleszyn, Poland
- Average visibility in December: 8km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).
