December weather forecast
Oleszna, Poland

December

Weather in December

The first month of the winter, December, is also a wintry month in Oleszna, Poland, with an average temperature varying between -1.3°C (29.7°F) and 2.7°C (36.9°F).

Temperature

A shift in Oleszna's weather is observed as November turns into December, with the average high temperature reducing from a frosty 7.9°C (46.2°F) to a cold 2.7°C (36.9°F). Oleszna's nighttime temperature in December consistently rests at a subzero cold -1.3°C (29.7°F).

Humidity

The average relative humidity in December in Oleszna is 85%.

Rainfall

In Oleszna, in December, it is raining for 8.6 days, with typically 20mm (0.79") of accumulated precipitation. In Oleszna, during the entire year, the rain falls for 139.3 days and collects up to 391mm (15.39") of precipitation.

Snowfall

Months with snowfall in Oleszna are January through May, October through December. In Oleszna, Poland, during December, snow falls for 5.9 days and regularly aggregates up to 47mm (1.85") of snow. Throughout the year, in Oleszna, there are 31.6 snowfall days, and 266mm (10.47") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 0min of daylight.
On the first day of the month, sunrise is at 07:33 and sunset at 15:50. On the last day of December, sunrise is at 07:54 and sunset at 15:57 CET.

Sunshine

In Oleszna, the average sunshine in December is 4.3h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index 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 2 during December translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.

Frequently asked questions

How cold is it in Oleszna in December?
In Oleszna, 2.7°C (36.9°F) is the average high-temperature and -1.3°C (29.7°F) is the average low-temperature during December.
What is the average humidity in December in Oleszna?
The average relative humidity in December in Oleszna is 85%.
How many days does it rain in December in Oleszna?
In Oleszna, in December, during 8.6 rainfall days, 20mm (0.79") of precipitation is typically accumulated.
How much does it snow in Oleszna in December?
In Oleszna, Poland, in December, during 5.9 snowfall days, 47mm (1.85") of snow is typically accumulated.
What is the month with the shortest days in Oleszna?
December has the shortest days of the year in Oleszna, Poland, with an average of 8h and 0min of daylight.
What is the average length of the day in December in Oleszna?
In December, the average day length is 8h and 2min.
What time are sunrise and sunset in December in Oleszna?
In December, on the first day of the month, sunrise is at 07:33 and sunset at 15:50. On the last day of the month, sunrise is at 07:54 and sunset at 15:57 CET.
How many hours of sunshine does Oleszna have in December?
In December, the average sunshine duration is 4.3h.
What is the month with the lowest UV index in Oleszna?
The months with the lowest UV index in Oleszna are January through March, November and December, with an average maximum UV index of 2.
What is the UV index reading in December in Oleszna?
The average daily maximum UV index in December in Oleszna, Poland, is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Oleszna, Poland
  • Average high temperature in December: 2.7°C

The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (0.6°C).

  • Average low temperature in December: -1.3°C

The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).

Average pressure in December
Oleszna, Poland
  • Average pressure in December: 1017.7mbar

The month with the highest atmospheric pressure is October (1018.3mbar).
The month with the lowest atmospheric pressure is July (1014.7mbar).

Average wind speed in December
Oleszna, 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 (9.3km/h).

Average humidity in December
Oleszna, Poland
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (69%).

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

The wettest month (with the highest rainfall) is May (57mm).
The driest month (with the least rainfall) is February (17mm).

Average rainfall days in December
Oleszna, Poland
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is May (17.8 days).
The months with the least rainy days are January and February (6 days).

Average snowfall in December
Oleszna, Poland
  • Average snowfall in December: 47mm

The month with the highest snowfall is January (72mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Oleszna, Poland
  • Average snowfall days in December: 5.9 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Oleszna, Poland
  • Average daylight in December: 8h and 0min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Oleszna, Poland
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is October (19 days).
The months with the least sunshine days are May and June (10.8 days).

Average UV index in December
Oleszna, Poland
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Oleszna, Poland
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Oleszna, Poland
  • Average visibility in December: 9km

The month with the highest visibility is August (10km).
The months with the lowest visibility are January and February (8km).

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