December weather forecastUstroń, Poland
December
Weather in December
December, the first month of the winter in Ustroń, is also an icy month, with an average temperature varying between -3.2°C (26.2°F) and 1.1°C (34°F).Temperature
The commencement of December indicates a shift in the average high-temperature, receding from November's frosty 7.4°C (45.3°F) to a wintry 1.1°C (34°F). The temperature during December sees a subtle transition from day to night, averaging a low of -3.2°C (26.2°F).Humidity
The average relative humidity in December in Ustroń is 89%.Rainfall
In Ustroń, in December, during 10.9 rainfall days, 54mm (2.13") of precipitation is typically accumulated. In Ustroń, during the entire year, the rain falls for 154.9 days and collects up to 566mm (22.28") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 12 days. Throughout December, 198mm (7.8") of snow is accumulated. In Ustroń, during the entire year, snow falls for 59.6 days and aggregates up to 828mm (32.6") of snow.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year in Ustroń.On the first day of December in Ustroń, sunrise is at 07:20 and sunset at 15:47. On the last day of the month, sunrise is at 07:41 and sunset at 15:54 CET.
Sunshine
The average sunshine in December is 3.9h.UV index
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 minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. 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
Ustroń, Poland
- Average high temperature in December: 1.1°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (-0.5°C).
- Average low temperature in December: -3.2°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-5.3°C).
Average pressure in December
Ustroń, Poland
- Average pressure in December: 1018.9mbar
The month with the highest atmospheric pressure is December (1018.9mbar).
The month with the lowest atmospheric pressure is July (1014.6mbar).
Average wind speed in December
Ustroń, Poland
- Average wind speed in December: 12.2km/h
The windiest month (with the highest average wind speed) is December (12.2km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).
Average humidity in December
Ustroń, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
Ustroń, Poland
- Average rainfall in December: 54mm
The wettest month (with the highest rainfall) is May (74mm).
The driest month (with the least rainfall) is November (33mm).
Average rainfall days in December
Ustroń, Poland
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Ustroń, Poland
- Average snowfall in December: 198mm
The month with the highest snowfall is January (260mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Ustroń, Poland
- Average snowfall days in December: 12 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ustroń, Poland
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in December
Ustroń, Poland
- Average sunshine days in December: 11.4 days
The month with the most sunshine days is August (16.8 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in December
Ustroń, 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 November and December (UV index 1).
Average cloud cover in December
Ustroń, Poland
- Average cloud cover in December: 62
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Ustroń, Poland
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
