December weather forecastGrylewo, Poland
December
Weather in December
December, the first month of the winter in Grylewo, is still a cold month, with an average temperature fluctuating between -1°C (30.2°F) and 2.7°C (36.9°F).Temperature
The average high-temperature slightly decreases in December, shifting from a chilly 7.1°C (44.8°F) in November to a wintry 2.7°C (36.9°F). Recording a slight decline in temperature during the nights, Grylewo's December temperatures average at a subzero cold -1°C (30.2°F).Humidity
January and December, with an average relative humidity of 89%, are the most humid months.Rainfall
In Grylewo, in December, during 9.5 rainfall days, 25mm (0.98") of precipitation is typically accumulated. In Grylewo, during the entire year, the rain falls for 132.7 days and collects up to 337mm (13.27") of precipitation.Snowfall
January through April, November and December are months with snowfall in Grylewo, Poland. In December, in Grylewo, it is snowing for 5.1 days. Throughout December, 28mm (1.1") of snow is accumulated. Throughout the year, there are 27.7 snowfall days, and 177mm (6.97") of snow is accumulated.Daylight
The month with the shortest days in Grylewo is December, with an average of 7h and 42min of daylight.On the first day of December in Grylewo, sunrise is at 07:41 and sunset at 15:38. On the last day of the month, sunrise is at 08:03 and sunset at 15:44 CET.
Sunshine
The average sunshine in December in Grylewo, Poland, is 3.1h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Grylewo. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grylewo, Poland
- Average high temperature in December: 2.7°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in December: -1°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).
Average pressure in December
Grylewo, Poland
- Average pressure in December: 1014.7mbar
The month with the highest atmospheric pressure is October (1017.1mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in December
Grylewo, Poland
- Average wind speed in December: 14.5km/h
The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in December
Grylewo, Poland
- Average humidity in December: 89%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are April and August (68%).
Average rainfall in December
Grylewo, Poland
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is July (42mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in December
Grylewo, Poland
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in December
Grylewo, Poland
- Average snowfall in December: 28mm
The month with the highest snowfall is January (65mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Grylewo, Poland
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grylewo, 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 6min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Grylewo, Poland
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in December
Grylewo, 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, November and December (UV index 1).
Average cloud cover in December
Grylewo, Poland
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Grylewo, Poland
- Average visibility in December: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, November and December (8km).





