December weather forecastSulejowek, Poland

December

Weather in December

The first month of the winter, December, is also an icy month in Sulejowek, Poland, with an average temperature varying between -1.4°C (29.5°F) and 2°C (35.6°F).

Temperature

In the transition to December, Sulejowek observes a minor drop in the average high-temperature, shifting from a frosty 6.9°C (44.4°F) in November to a wintry 2°C (35.6°F). Sulejowek encounters a small divergence from daytime high temperatures, averaging a low-temperature of -1.4°C (29.5°F) during December nights.

Humidity

In Sulejowek, the average relative humidity in December is 87%.

Rainfall

In Sulejowek, in December, it is raining for 9.8 days, with typically 24mm (0.94") of accumulated precipitation. In Sulejowek, during the entire year, the rain falls for 141.6 days and collects up to 346mm (13.62") of precipitation.

Snowfall

January through April, October through December are months with snowfall in Sulejowek. In Sulejowek, Poland, in December, snow falls for 9.3 days, with typically accumulated 45mm (1.77") of snow. Throughout the year, in Sulejowek, there are 40.6 snowfall days, and 252mm (9.92") of snow is accumulated.

Daylight

The month with the shortest days in Sulejowek is December, with an average of 7h and 48min of daylight.
On the first day of the month, sunrise is at 07:22 and sunset at 15:25. On the last day of December, sunrise is at 07:44 and sunset at 15:32 CET.

Sunshine

In December, the average sunshine is 3.4h.

UV index

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. Enhance your sun protection with tightly woven, yet airy clothing. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

In December, the average high-temperature and low-temperature in Sulejowek, Poland, are 2°C (35.6°F) and -1.4°C (29.5°F) respectively.

The average relative humidity in December in Sulejowek is 87%.

In Sulejowek, during December, the rain falls for 9.8 days and regularly aggregates up to 24mm (0.94") of precipitation.

In Sulejowek, Poland, in December, during 9.3 snowfall days, 45mm (1.77") of snow is typically accumulated.

With an average of 7h and 48min of daylight, December has the shortest days of the year.

The average day length in December is 7h and 48min.

On the first day of December in Sulejowek, sunrise is at 07:22 and sunset at 15:25. On the last day of the month, sunrise is at 07:44 and sunset at 15:32 CET.

The average sunshine duration in December in Sulejowek is 3.4h.

In Sulejowek, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Sulejowek, Poland

  • Average high temperature in December: 2°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: -1.4°C

The months with the highest average low temperature are July and August (15°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).

Average pressure in December
Sulejowek, Poland

  • Average pressure in December: 1016.2mbar

The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).

Average wind speed in December
Sulejowek, Poland

  • Average wind speed in December: 13.9km/h

The windiest month (with the highest average wind speed) is December (13.9km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

Average humidity in December
Sulejowek, Poland

  • Average humidity in December: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).

Average rainfall in December
Sulejowek, Poland

  • Average rainfall in December: 24mm

The wettest month (with the highest rainfall) is May (53mm).
The driest months (with the least rainfall) are February and November (18mm).

Average rainfall days in December
Sulejowek, Poland

  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in December
Sulejowek, Poland

  • Average snowfall in December: 45mm

The month with the highest snowfall is January (89mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Sulejowek, Poland

  • Average snowfall days in December: 9.3 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 7h and 48min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in December: 3h and 24min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in December
Sulejowek, Poland

  • Average sunshine days in December: 12.9 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in December
Sulejowek, 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 January (UV index 1).

Average cloud cover in December
Sulejowek, Poland

  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Sulejowek, Poland

  • Average visibility in December: 8km

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