December weather forecastZwiniarz, Poland

December

Weather in December

The first month of the winter, December, is still a cold month in Zwiniarz, Poland, with temperature in the range of an average high of 1.4°C (34.5°F) and an average low of -1.9°C (28.6°F).

Temperature

Zwiniarz, Poland, in December experiences a gentle temperature dip, with average high-temperatures reducing from a chilly 6.2°C (43.2°F) in November to a wintry 1.4°C (34.5°F). December records a small disparity from daytime temperatures, marking an average low-temperature of -1.9°C (28.6°F).

Humidity

In December, the average relative humidity is 89%.

Rainfall

In Zwiniarz, in December, during 9.1 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Zwiniarz, during the entire year, the rain falls for 126.8 days and collects up to 277mm (10.91") of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Zwiniarz, during December, snow falls for 10.2 days and regularly aggregates up to 56mm (2.2") of snow. In Zwiniarz, during the entire year, snow falls for 46.4 days and aggregates up to 230mm (9.06") of snow.

Daylight

With an average of 7h and 36min of daylight, December has the shortest days of the year in Zwiniarz, Poland.
On the first day of the month, sunrise is at 07:33 and sunset at 15:25. On the last day of December, sunrise is at 07:56 and sunset at 15:31 CET.

Sunshine

The average sunshine in December is 2.8h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

The high-temperature during December is 1.4°C (34.5°F) and the low-temperature is -1.9°C (28.6°F).

In December, the average relative humidity is 89%.

In December, the rain falls for 9.1 days. Throughout December, 20mm (0.79") of precipitation is accumulated.

In December, it is snowing for 10.2 days. Throughout December, 56mm (2.2") of snow is accumulated.

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

In December, the average day length is 7h and 35min.

On the first day of December, sunrise is at 07:33 and sunset at 15:25. On the last day of the month, sunrise is at 07:56 and sunset at 15:31 CET.

In December, the average sunshine duration is 2.8h.

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

In Zwiniarz, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Zwiniarz, Poland

  • Average high temperature in December: 1.4°C

The warmest months (with the highest average high temperature) are July and August (23.8°C).
The month with the lowest average high temperature is January (-0.8°C).

  • Average low temperature in December: -1.9°C

The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).

Average pressure in December
Zwiniarz, Poland

  • Average pressure in December: 1015.2mbar

The month with the highest atmospheric pressure is October (1017.6mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).

Average wind speed in December
Zwiniarz, Poland

  • Average wind speed in December: 13.8km/h

The windiest month (with the highest average wind speed) is December (13.8km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

Average humidity in December
Zwiniarz, Poland

  • Average humidity in December: 89%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (69%).

Average rainfall in December
Zwiniarz, Poland

  • Average rainfall in December: 20mm

The wettest month (with the highest rainfall) is May (40mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in December
Zwiniarz, Poland

  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in December
Zwiniarz, Poland

  • Average snowfall in December: 56mm

The month with the highest snowfall is January (86mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Zwiniarz, Poland

  • Average snowfall days in December: 10.2 days

The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 7h and 36min

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

  • Average sunshine in December: 2h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in December
Zwiniarz, Poland

  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (11.8 days).

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

Average cloud cover in December
Zwiniarz, Poland

  • Average cloud cover in December: 73

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Zwiniarz, 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).