December weather forecastSiółko, Poland

December

Weather in December

The first month of the winter, December, is also a wintry month in Siółko, Poland, with an average temperature ranging between max 0.5°C (32.9°F) and min -2.6°C (27.3°F).

Temperature

During Siółko's transition into December, the average high-temperature lessens, moving from a cold 5.5°C (41.9°F) in November to a still wintry 0.5°C (32.9°F). The nights of December anticipate a slight dip from daytime high temperatures, settling to an average low-temperature of -2.6°C (27.3°F).

Humidity

In December, the average relative humidity in Siółko is 91%.

Rainfall

In Siółko, in December, during 10.5 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Siółko, Poland, during the entire year, the rain falls for 156.6 days and collects up to 459mm (18.07") of precipitation.

Snowfall

Months with snowfall in Siółko are January through May, October through December. In December, in Siółko, Poland, it is snowing for 13.4 days. Throughout December, 110mm (4.33") of snow is accumulated. Throughout the year, there are 65.1 snowfall days, and 519mm (20.43") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 7h and 30min of daylight.
On the first day of the month, sunrise is at 07:20 and sunset at 15:09. On the last day of December, sunrise is at 07:43 and sunset at 15:14 CET.

Sunshine

In December, the average sunshine is 1.7h.

UV index

The months with the lowest UV index 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 hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 1 in December translates into this advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

In December, in Siółko, the average high-temperature is 0.5°C (32.9°F), and the average low-temperature is -2.6°C (27.3°F).

In December, the average relative humidity is 91%.

In Siółko, in December, it is raining for 10.5 days, with typically 36mm (1.42") of accumulated precipitation.

In Siółko, during December, snow falls for 13.4 days and regularly aggregates up to 110mm (4.33") of snow.

With an average of 7h and 30min of daylight, December has the shortest days of the year.

In December, the average day length is 7h and 32min.

In December, on the first day of the month, sunrise is at 07:20 and sunset at 15:09. On the last day of the month, sunrise is at 07:43 and sunset at 15:14 CET.

In December, the average sunshine duration is 1.7h.

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

In December, the average daily maximum UV index in Siółko is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe 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
Siółko, Poland

  • Average high temperature in December: 0.5°C

The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-1.8°C).

  • Average low temperature in December: -2.6°C

The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).

Average pressure in December
Siółko, Poland

  • Average pressure in December: 1015.1mbar

The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013mbar).

Average wind speed in December
Siółko, Poland

  • Average wind speed in December: 13.4km/h

The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).

Average humidity in December
Siółko, Poland

  • Average humidity in December: 91%

The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are April and August (71%).

Average rainfall in December
Siółko, Poland

  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is June (59mm).
The driest months (with the least rainfall) are February and April (25mm).

Average rainfall days in December
Siółko, Poland

  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (19.9 days).
The months with the least rainy days are January and February (7.5 days).

Average snowfall in December
Siółko, Poland

  • Average snowfall in December: 110mm

The month with the highest snowfall is January (155mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Siółko, Poland

  • Average snowfall days in December: 13.4 days

The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 7h and 30min

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 30min).

  • Average sunshine in December: 1h and 42min

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).

Average sunshine days in December
Siółko, Poland

  • Average sunshine days in December: 9.8 days

The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is January (8.3 days).

Average UV index in December
Siółko, Poland

  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Siółko, Poland

  • Average cloud cover in December: 77

The month with the most cloud cover is February (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Siółko, Poland

  • Average visibility in December: 7km

The months with the highest visibility are April, May, June, July, August and September (9km).
The month with the lowest visibility is January (6km).