December weather forecast
Grzęby, Poland

December

Weather in December

December, the first month of the winter in Grzęby, is still a cold month, with temperature in the range of an average low of -1.9°C (28.6°F) and an average high of 1.4°C (34.5°F).

Temperature

The onset of December brings a small shift in high-temperatures, falling from a chilly 6.2°C (43.2°F) in November to an icy 1.4°C (34.5°F). Throughout December, Grzęby's nights experience a slight temperature dip to a freezing cold -1.9°C (28.6°F).

Humidity

In December, the average relative humidity in Grzęby is 89%.

Rainfall

In Grzęby, during December, the rain falls for 9.1 days and regularly aggregates up to 20mm (0.79") of precipitation. Throughout the year, there are 126.8 rainfall days, and 277mm (10.91") of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Grzęby, in December, snow falls for 10.2 days, with typically accumulated 56mm (2.2") of snow. Throughout the year, there are 46.4 snowfall days, and 230mm (9.06") of snow is accumulated.

Daylight

With an average of 7h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:33 and sunset at 15:28. On the last day of December, in Grzęby, sunrise is at 07:55 and sunset at 15:34 CET.

Sunshine

In Grzęby, the average sunshine in December is 2.8h.

UV index

The months with the lowest UV index in Grzęby are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 1 during December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Frequently asked questions

How cold is December in Grzęby?
The average high-temperature, in December, in Grzęby, is 1.4°C (34.5°F), while the average low-temperature is -1.9°C (28.6°F).
What is the average humidity in December in Grzęby?
In December, the average relative humidity in Grzęby, Poland, is 89%.
How many days does it rain in December in Grzęby?
In Grzęby, Poland, during December, the rain falls for 9.1 days and regularly aggregates up to 20mm (0.79") of precipitation.
How many days does it snow in December in Grzęby?
In Grzęby, in December, during 10.2 snowfall days, 56mm (2.2") of snow is typically accumulated.
What is the month with the shortest days in Grzęby?
The month with the shortest days is December, with an average of 7h and 36min of daylight.
How many hours of daylight does Grzęby have in December?
In December, the average day length in Grzęby, Poland, is 7h and 39min.
When is the sunrise / sunset in December in Grzęby?
In December, on the first day of the month, sunrise is at 07:33 and sunset at 15:28. On the last day of the month, in Grzęby, Poland, sunrise is at 07:55 and sunset at 15:34 CET.
How many hours of sunshine does Grzęby have in December?
In Grzęby, the average sunshine duration in December is 2.8h.
When is the lowest UV index in Grzęby?
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Grzęby.
How high is the UV index in December in Grzęby?
The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Grzęby, Poland
  • Average high temperature in December: 1.4°C

The warmest months (with the highest average high temperature) are July and August (23.8°C).
The month with the lowest average high temperature is January (-0.8°C).

  • Average low temperature in December: -1.9°C

The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).

Average pressure in December
Grzęby, Poland
  • Average pressure in December: 1015.2mbar

The month with the highest atmospheric pressure is October (1017.6mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).

Average wind speed in December
Grzęby, Poland
  • Average wind speed in December: 13.8km/h

The windiest month (with the highest average wind speed) is December (13.8km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

Average humidity in December
Grzęby, 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 (69%).

Average rainfall in December
Grzęby, Poland
  • Average rainfall in December: 20mm

The wettest month (with the highest rainfall) is May (40mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in December
Grzęby, Poland
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in December
Grzęby, Poland
  • Average snowfall in December: 56mm

The month with the highest snowfall is January (86mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Grzęby, Poland
  • Average snowfall days in December: 10.2 days

The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Grzęby, Poland
  • Average daylight in December: 7h and 4min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in December
Grzęby, Poland
  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in December
Grzęby, 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
Grzęby, Poland
  • Average cloud cover in December: 73

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
Grzęby, 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).

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