December weather forecast
Opalino, Poland

December

Weather in December

The first month of the winter, December, is also a wintry month in Opalino, Poland, with temperature in the range of an average high of 2.8°C (37°F) and an average low of 0.2°C (32.4°F).

Temperature

With the arrival of December, Opalino notices a mild change in the average high-temperature, sliding from November's chilly 7°C (44.6°F) to an icy 2.8°C (37°F). A modest nighttime temperature average of 0.2°C (32.4°F) characterizes December in Opalino.

Humidity

January and December, with an average relative humidity of 87%, are the most humid months in Opalino, Poland.

Rainfall

In Opalino, Poland, during December, the rain falls for 14.1 days and regularly aggregates up to 41mm (1.61") of precipitation. Throughout the year, there are 171.4 rainfall days, and 487mm (19.17") of precipitation is accumulated.

Snowfall

Months with snowfall in Opalino are January through May, November and December. In Opalino, Poland, in December, snow falls for 9.5 days, with typically accumulated 79mm (3.11") of snow. Throughout the year, in Opalino, Poland, there are 48 snowfall days, and 322mm (12.68") of snow is accumulated.

Daylight

The month with the shortest days in Opalino is December, with an average of 7h and 18min of daylight.
On the first day of December, sunrise is at 07:47 and sunset at 15:25. On the last day of the month, sunrise is at 08:10 and sunset at 15:31 CET.

Sunshine

The average sunshine in December is 3h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Opalino. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 1 during December translates into the following guidance:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

How cold is December in Opalino?
In Opalino, in December, the average high-temperature is 2.8°C (37°F), and the average low-temperature is 0.2°C (32.4°F).
What is the most humid month in Opalino?
January and December, with an average relative humidity of 87%, are most humid months in Opalino, Poland.
What is the average humidity in December in Opalino?
In December, the average relative humidity in Opalino, Poland, is 87%.
How many days does it rain in December in Opalino?
In Opalino, in December, during 14.1 rainfall days, 41mm (1.61") of precipitation is typically accumulated.
How much does it snow in Opalino in December?
In Opalino, Poland, in December, during 9.5 snowfall days, 79mm (3.11") of snow is typically accumulated.
What is the month with the shortest days in Opalino?
The month with the shortest days in Opalino is December, with an average of 7h and 18min of daylight.
How many hours of daylight does Opalino have in December?
The average day length in December in Opalino, Poland, is 7h and 21min.
When are sunrise and sunset in December in Opalino?
In December, on the first day of the month, sunrise is at 07:47 and sunset at 15:25. On the last day of the month, in Opalino, sunrise is at 08:10 and sunset at 15:31 CET.
How many hours of sunshine does Opalino have in December?
The average sunshine duration in December is 3h.
When is the lowest UV index in Opalino?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Opalino.
What is the UV index intensity in December in Opalino?
The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents 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 - Opalino, Poland
Average temperature in December
Opalino, Poland
  • Average high temperature in December: 2.8°C

The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (0.8°C).

  • Average low temperature in December: 0.2°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 (-1.8°C).

Average pressure in December - Opalino, Poland
Average pressure in December
Opalino, Poland
  • Average pressure in December: 1012.9mbar

The month with the highest atmospheric pressure is October (1016.4mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).

Average wind speed in December - Opalino, Poland
Average wind speed in December
Opalino, Poland
  • Average wind speed in December: 19.3km/h

The windiest month (with the highest average wind speed) is December (19.3km/h).
The calmest months (with the lowest average wind speed) are June and August (13.7km/h).

Average humidity in December - Opalino, Poland
Average humidity in December
Opalino, Poland
  • Average humidity in December: 87%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (72%).

Average rainfall in December - Opalino, Poland
Average rainfall in December
Opalino, Poland
  • Average rainfall in December: 41mm

The wettest month (with the highest rainfall) is July (70mm).
The driest month (with the least rainfall) is April (18mm).

Average rainfall days in December - Opalino, Poland
Average rainfall days in December
Opalino, Poland
  • Average rainfall days in December: 14.1 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is February (9.5 days).

Average snowfall in December - Opalino, Poland
Average snowfall in December
Opalino, Poland
  • Average snowfall in December: 79mm

The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in December - Opalino, Poland
Average snowfall days in December
Opalino, Poland
  • Average snowfall days in December: 9.5 days

The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Opalino, Poland
Average daylight in December /
Average sunshine in December
Opalino, Poland
  • Average daylight in December: 7h and 2min

The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 18min).

  • Average sunshine in December: 3h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in December - Opalino, Poland
Average sunshine days in December
Opalino, Poland
  • Average sunshine days in December: 8.7 days

The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is December (8.7 days).

Average UV index in December - Opalino, Poland
Average UV index in December
Opalino, 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 and December (UV index 1).

Average cloud cover in December - Opalino, Poland
Average cloud cover in December
Opalino, 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 33).

Average visibility in December - Opalino, Poland
Average visibility in December
Opalino, Poland
  • Average visibility in December: 9km

The months with the highest visibility are April, June, August and September (10km).
The months with the lowest visibility are January, February, March, May, July, October, November and December (9km).

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