December weather forecastGrębki, Poland
December
Weather in December
The first month of the winter, December, is also a wintry month in Grębki, Poland, with an average temperature varying between -1.8°C (28.8°F) and 1.5°C (34.7°F).Temperature
As December commences, the average high-temperature subtly reduces, transitioning from a chilly 6.3°C (43.3°F) in November to a cold 1.5°C (34.7°F). Night temperatures during December experience a slight downturn, averaging a freezing cold -1.8°C (28.8°F).Humidity
The average relative humidity in December in Grębki is 89%.Rainfall
In Grębki, in December, it is raining for 10.5 days, with typically 28mm (1.1") of accumulated precipitation. Throughout the year, there are 148.8 rainfall days, and 426mm (16.77") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Grębki, during December, snow falls for 9.8 days and regularly aggregates up to 64mm (2.52") of snow. Throughout the year, there are 40.6 snowfall days, and 274mm (10.79") of snow is accumulated.Daylight
December has the shortest days of the year in Grębki, with an average of 7h and 42min of daylight.On the first day of the month, sunrise is at 07:23 and sunset at 15:21. On the last day of December, in Grębki, sunrise is at 07:45 and sunset at 15:27 CET.
Sunshine
In December, the average sunshine is 3h.UV index
The months with the lowest UV index in Grębki, Poland, are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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
Grębki, 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).





