December weather forecastCetty, Poland
December
Weather in December
The first month of the winter, December, is still a cold month in Cetty, Poland, with an average temperature varying between 2.6°C (36.7°F) and -0.5°C (31.1°F).Temperature
The transition into December involves a small decrease in the average high-temperature, dipping slightly from a frosty 7.4°C (45.3°F) in November to a wintry 2.6°C (36.7°F). Cetty indicates a consistently low-temperature of -0.5°C (31.1°F) during the nights of December.Humidity
The average relative humidity in December is 87%.Rainfall
In Cetty, during December, the rain falls for 9.6 days and regularly aggregates up to 18mm (0.71") of precipitation. In Cetty, during the entire year, the rain falls for 137.4 days and collects up to 321mm (12.64") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Cetty, Poland, in December, snow falls for 7 days, with typically accumulated 31mm (1.22") of snow. Throughout the year, in Cetty, there are 33.1 snowfall days, and 162mm (6.38") of snow is accumulated.Daylight
With an average of 7h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 07:32 and sunset at 15:34. On the last day of the month, sunrise is at 07:54 and sunset at 15:40 CET.
Sunshine
In December, the average sunshine in Cetty is 3.4h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cetty, Poland
- Average high temperature in December: 2.6°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 (0.4°C).
- Average low temperature in December: -0.5°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in December
Cetty, 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 (1013.8mbar).
Average wind speed in December
Cetty, Poland
- Average wind speed in December: 15.1km/h
The windiest month (with the highest average wind speed) is December (15.1km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Cetty, Poland
- Average humidity in December: 87%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Cetty, Poland
- Average rainfall in December: 18mm
The wettest months (with the highest rainfall) are June and July (46mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in December
Cetty, Poland
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Cetty, Poland
- Average snowfall in December: 31mm
The month with the highest snowfall is January (49mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Cetty, Poland
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cetty, 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 0min).
Average sunshine days in December
Cetty, Poland
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Cetty, Poland
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Cetty, 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
Cetty, 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).
