December weather forecastRolki, Poland

December

Weather in December

The first month of the winter, December, is also a wintry month in Rolki, Poland, with an average temperature fluctuating between 0.9°C (33.6°F) and -2.4°C (27.7°F).

Temperature

The onset of December brings a small shift in high-temperatures, falling from an icy 5.5°C (41.9°F) in November to a still cold 0.9°C (33.6°F). Rolki registers a subtle dip to an average of -2.4°C (27.7°F) during the nights of December.

Humidity

The average relative humidity in December is 90%.

Rainfall

In Rolki, in December, it is raining for 9.3 days, with typically 29mm (1.14") of accumulated precipitation. In Rolki, during the entire year, the rain falls for 155 days and collects up to 436mm (17.17") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Rolki, Poland, in December, snow falls for 10.9 days, with typically accumulated 85mm (3.35") of snow. In Rolki, during the entire year, snow falls for 51.3 days and aggregates up to 355mm (13.98") of snow.

Daylight

December has the shortest days of the year, with an average of 7h and 36min of daylight.
On the first day of the month, sunrise is at 07:25 and sunset at 15:15. On the last day of December, in Rolki, sunrise is at 07:47 and sunset at 15:21 CET.

Sunshine

In Rolki, the average sunshine in December is 2.7h.

UV index

The months with the lowest UV index in Rolki are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

The high-temperature, in December, in Rolki, is 0.9°C (33.6°F), while the low-temperature averages to -2.4°C (27.7°F).

In Rolki, Poland, the average relative humidity in December is 90%.

In Rolki, in December, during 9.3 rainfall days, 29mm (1.14") of precipitation is typically accumulated.

In December, in Rolki, Poland, it is snowing for 10.9 days. Throughout December, 85mm (3.35") of snow is accumulated.

December has the shortest days of the year in Rolki, with an average of 7h and 36min of daylight.

In Rolki, Poland, the average day length in December is 7h and 34min.

On the first day of December in Rolki, Poland, sunrise is at 07:25 and sunset at 15:15. On the last day of the month, sunrise is at 07:47 and sunset at 15:21 CET.

The average sunshine duration in December in Rolki is 2.7h.

The months with the lowest UV index in Rolki, Poland, are January, February, November and December, with an average maximum UV index of 1.

In Rolki, Poland, 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
Rolki, Poland

  • Average high temperature in December: 0.9°C

The warmest months (with the highest average high temperature) are July and August (23.3°C).
The month with the lowest average high temperature is January (-1.5°C).

  • Average low temperature in December: -2.4°C

The month with the highest average low temperature is July (13.1°C).
The coldest month (with the lowest average low temperature) is January (-5.3°C).

Average pressure in December
Rolki, Poland

  • Average pressure in December: 1014.8mbar

The month with the highest atmospheric pressure is October (1017.7mbar).
The month with the lowest atmospheric pressure is July (1013.1mbar).

Average wind speed in December
Rolki, Poland

  • Average wind speed in December: 13.7km/h

The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

Average humidity in December
Rolki, Poland

  • Average humidity in December: 90%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (70%).

Average rainfall in December
Rolki, Poland

  • Average rainfall in December: 29mm

The wettest month (with the highest rainfall) is June (65mm).
The driest months (with the least rainfall) are February and April (20mm).

Average rainfall days in December
Rolki, Poland

  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is February (6 days).

Average snowfall in December
Rolki, Poland

  • Average snowfall in December: 85mm

The month with the highest snowfall is January (100mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Rolki, Poland

  • Average snowfall days in December: 10.9 days

The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Rolki, Poland

  • Average daylight in December: 7h and 36min

The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in December: 2h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 18min).

Average sunshine days in December
Rolki, Poland

  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (7.8 days).

Average UV index in December
Rolki, 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, February, November and December (UV index 1).

Average cloud cover in December
Rolki, Poland

  • Average cloud cover in December: 75

The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Rolki, Poland

  • Average visibility in December: 7km

The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February and December (7km).