December weather forecast
Śliwnik, Poland

December

Weather in December

The first month of the winter, December, is still a cold month in Śliwnik, Poland, with temperature in the range of an average high of 3.7°C (38.7°F) and an average low of -0.1°C (31.8°F).

Temperature

As December arrives, Śliwnik's weather displays a minor decrease in high-temperatures, transitioning from November's chilly 8.4°C (47.1°F) to an icy 3.7°C (38.7°F). Śliwnik, in the month of December, notes an average low temperature of -0.1°C (31.8°F), indicating a small decrease from the daytime highs.

Humidity

In Śliwnik, the average relative humidity in December is 86%.

Rainfall

In December, in Śliwnik, the rain falls for 12.6 days. Throughout December, 34mm (1.34") of precipitation is accumulated. Throughout the year, there are 130.7 rainfall days, and 340mm (13.39") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Śliwnik, in December, during 7.3 snowfall days, 66mm (2.6") of snow is typically accumulated. In Śliwnik, during the entire year, snow falls for 36.2 days and aggregates up to 309mm (12.17") of snow.

Daylight

December has the shortest days of the year in Śliwnik, with an average of 7h and 54min of daylight.
On the first day of the month, sunrise is at 07:42 and sunset at 15:52. On the last day of December, sunrise is at 08:03 and sunset at 15:58 CET.

Sunshine

The average sunshine in December is 3.8h.

UV index

The average daily maximum UV index in December in Śliwnik is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

How cold is December in Śliwnik?
In December, in Śliwnik, the average high-temperature is 3.7°C (38.7°F), and the average low-temperature is -0.1°C (31.8°F).
What is the average humidity in December in Śliwnik?
In December, the average relative humidity in Śliwnik is 86%.
How many days does it rain in December in Śliwnik?
In Śliwnik, in December, it is raining for 12.6 days, with typically 34mm (1.34") of accumulated precipitation.
How much does it snow in Śliwnik in December?
In Śliwnik, in December, during 7.3 snowfall days, 66mm (2.6") of snow is typically accumulated.
What is the month with the shortest days in Śliwnik?
December has the shortest days of the year, with an average of 7h and 54min of daylight.
How many hours of daylight does Śliwnik have in December?
The average day length in December is 7h and 55min.
What time are sunrise and sunset in December in Śliwnik?
On the first day of December in Śliwnik, Poland, sunrise is at 07:42 and sunset at 15:52. On the last day of the month, sunrise is at 08:03 and sunset at 15:58 CET.
How many hours of sunshine does Śliwnik have in December?
In December, the average sunshine duration in Śliwnik is 3.8h.
What is the UV index reading in December in Śliwnik?
In Śliwnik, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Śliwnik, Poland
  • Average high temperature in December: 3.7°C

The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (1.7°C).

  • Average low temperature in December: -0.1°C

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-2°C).

Average pressure in December
Śliwnik, Poland
  • Average pressure in December: 1016.6mbar

The month with the highest atmospheric pressure is October (1017.8mbar).
The month with the lowest atmospheric pressure is July (1014.5mbar).

Average wind speed in December
Śliwnik, Poland
  • Average wind speed in December: 14.1km/h

The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).

Average humidity in December
Śliwnik, Poland
  • Average humidity in December: 86%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).

Average rainfall in December
Śliwnik, Poland
  • Average rainfall in December: 34mm

The wettest month (with the highest rainfall) is July (40mm).
The driest month (with the least rainfall) is September (14mm).

Average rainfall days in December
Śliwnik, Poland
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (7.4 days).

Average snowfall in December
Śliwnik, Poland
  • Average snowfall in December: 66mm

The month with the highest snowfall is January (120mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Śliwnik, Poland
  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Śliwnik, Poland
  • Average daylight in December: 7h and 5min

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

  • Average sunshine in December: 3h 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: 3h and 12min).

Average sunshine days in December
Śliwnik, Poland
  • Average sunshine days in December: 12.2 days

The month with the most sunshine days is September (21.2 days).
The month with the least sunshine days is January (10.3 days).

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in December
Śliwnik, Poland
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Śliwnik, Poland
  • Average visibility in December: 8km

The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is January (7km).

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