December weather forecastŚląsko, Poland

December

Weather in December

December, the first month of the winter in Śląsko, is also a wintry month, with temperature in the range of an average high of 2.1°C (35.8°F) and an average low of -1.5°C (29.3°F).

Temperature

The average high-temperature decreases in December, shifting from a frosty 7.3°C (45.1°F) in November to a wintry 2.1°C (35.8°F). Registering an almost steady temperature, Śląsko's nights in December see an average low of -1.5°C (29.3°F).

Humidity

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

Rainfall

In Śląsko, Poland, in December, it is raining for 12.2 days, with typically 38mm (1.5") of accumulated precipitation. In Śląsko, during the entire year, the rain falls for 161.4 days and collects up to 490mm (19.29") of precipitation.

Snowfall

Months with snowfall in Śląsko, Poland, are January through May, October through December. In Śląsko, in December, during 11.6 snowfall days, 95mm (3.74") of snow is typically accumulated. Throughout the year, there are 56.6 snowfall days, and 482mm (18.98") of snow is accumulated.

Daylight

With an average of 8h and 0min of daylight, December has the shortest days of the year in Śląsko.
On the first day of the month, sunrise is at 07:15 and sunset at 15:29. On the last day of December, in Śląsko, sunrise is at 07:37 and sunset at 15:36 CET.

Sunshine

In Śląsko, the average sunshine in December is 3.4h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Śląsko. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 1 during December translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Boost your sun resistance with garments that are densely woven yet spacious. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

In Śląsko, 2.1°C (35.8°F) is the average high-temperature and -1.5°C (29.3°F) is the average low-temperature during December.

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

In Śląsko, during December, the rain falls for 12.2 days and regularly aggregates up to 38mm (1.5") of precipitation.

In Śląsko, during December, snow falls for 11.6 days and regularly aggregates up to 95mm (3.74") of snow.

The month with the shortest days is December, with an average of 8h and 0min of daylight.

In December, the average day length in Śląsko is 7h and 59min.

On the first day of December in Śląsko, sunrise is at 07:15 and sunset at 15:29. On the last day of the month, sunrise is at 07:37 and sunset at 15:36 CET.

In December, the average sunshine duration in Śląsko, Poland, is 3.4h.

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

In December, the average daily maximum UV index in Śląsko, Poland, is 1. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
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
Śląsko, Poland

  • Average high temperature in December: 2.1°C

The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (-0.3°C).

  • Average low temperature in December: -1.5°C

The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-4°C).

Average pressure in December
Śląsko, Poland

  • Average pressure in December: 1017.6mbar

The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1014.1mbar).

Average wind speed in December
Śląsko, Poland

  • Average wind speed in December: 12.6km/h

The windiest month (with the highest average wind speed) is December (12.6km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).

Average humidity in December
Śląsko, Poland

  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).

Average rainfall in December
Śląsko, Poland

  • Average rainfall in December: 38mm

The wettest months (with the highest rainfall) are May and July (63mm).
The driest month (with the least rainfall) is November (27mm).

Average rainfall days in December
Śląsko, Poland

  • Average rainfall days in December: 12.2 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Śląsko, Poland

  • Average snowfall in December: 95mm

The month with the highest snowfall is January (149mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Śląsko, Poland

  • Average snowfall days in December: 11.6 days

The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 8h and 0min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in December: 3h and 24min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).

Average sunshine days in December
Śląsko, Poland

  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is January (8.1 days).

Average UV index in December
Śląsko, 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 and December (UV index 1).

Average cloud cover in December
Śląsko, Poland

  • Average cloud cover in December: 67

The months with the most cloud cover are January and February (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Śląsko, Poland

  • Average visibility in December: 8km

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