December weather forecastKłaj, Poland

December

Weather in December

December, the first month of the winter in Kłaj, is also an icy month, with an average temperature varying between 2.6°C (36.7°F) and -1.5°C (29.3°F).

Temperature

The onset of December brings a small change in high-temperatures, falling from a chilly 8.6°C (47.5°F) in November to an icy 2.6°C (36.7°F). Maintaining close parity with daytime warmth, the average nocturnal temperature in Kłaj during December stays at a subzero cold -1.5°C (29.3°F).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Kłaj, during December, the rain falls for 6 days and regularly aggregates up to 16mm (0.63") of precipitation. In Kłaj, Poland, during the entire year, the rain falls for 123.2 days and collects up to 368mm (14.49") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Kłaj, in December, snow falls for 5.5 days, with typically accumulated 35mm (1.38") of snow. In Kłaj, during the entire year, snow falls for 24.6 days and aggregates up to 153mm (6.02") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 12min of daylight.
On the first day of December, sunrise is at 07:16 and sunset at 15:39. On the last day of the month, sunrise is at 07:37 and sunset at 15:46 CET.

Sunshine

The average sunshine in December in Kłaj, Poland, is 4.3h.

UV index

December is the month with the lowest UV index in Kłaj, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

In Kłaj, in December, the average high-temperature is 2.6°C (36.7°F), and the average low-temperature is -1.5°C (29.3°F).

In Kłaj, the average relative humidity in December is 83%.

In Kłaj, Poland, in December, during 6 rainfall days, 16mm (0.63") of precipitation is typically accumulated.

In Kłaj, Poland, in December, snow falls for 5.5 days, with typically accumulated 35mm (1.38") of snow.

December has the shortest days of the year in Kłaj, with an average of 8h and 12min of daylight.

In December, the average day length is 8h and 10min.

In December, on the first day of the month, sunrise is at 07:16 and sunset at 15:39. On the last day of the month, in Kłaj, sunrise is at 07:37 and sunset at 15:46 CET.

In Kłaj, the average sunshine duration in December is 4.3h.

With an average maximum UV index of 1, December is the month with the lowest UV index in Kłaj.

In December, the average daily maximum UV index in Kłaj is 1. A UV Index value 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
Kłaj, Poland

  • Average high temperature in December: 2.6°C

The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (0.4°C).

  • Average low temperature in December: -1.5°C

The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average pressure in December
Kłaj, Poland

  • Average pressure in December: 1018.6mbar

The month with the highest atmospheric pressure is October (1018.8mbar).
The months with the lowest atmospheric pressure are June and July (1014.5mbar).

Average wind speed in December
Kłaj, Poland

  • Average wind speed in December: 12.5km/h

The windiest month (with the highest average wind speed) is March (12.9km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

Average humidity in December
Kłaj, Poland

  • Average humidity in December: 83%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (69%).

Average rainfall in December
Kłaj, Poland

  • Average rainfall in December: 16mm

The wettest month (with the highest rainfall) is May (65mm).
The driest months (with the least rainfall) are January and March (14mm).

Average rainfall days in December
Kłaj, Poland

  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is January (3.9 days).

Average snowfall in December
Kłaj, Poland

  • Average snowfall in December: 35mm

The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Kłaj, Poland

  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 8h and 12min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in December: 4h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

Average sunshine days in December
Kłaj, Poland

  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in December
Kłaj, Poland

  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Kłaj, Poland

  • Average cloud cover in December: 58

The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Kłaj, Poland

  • Average visibility in December: 9km

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and February (8km).