December weather forecastCelestyny, Poland

December

Weather in December

December, the first month of the winter in Celestyny, is also an icy month, with an average temperature fluctuating between -0.5°C (31.1°F) and 2.8°C (37°F).

Temperature

Transition into December marks a drop in the average high-temperature, moving from a chilly 7.9°C (46.2°F) in November to an icy 2.8°C (37°F). Celestyny's nighttime temperature in December shows a minor descent, with a steady average of -0.5°C (31.1°F).

Humidity

In December, the average relative humidity is 86%.

Rainfall

In Celestyny, during December, the rain falls for 8.6 days and regularly aggregates up to 14mm (0.55") of precipitation. Throughout the year, there are 119.6 rainfall days, and 215mm (8.46") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, in Celestyny, it is snowing for 7.5 days. Throughout December, 30mm (1.18") of snow is accumulated. In Celestyny, during the entire year, snow falls for 37.3 days and aggregates up to 150mm (5.91") of snow.

Daylight

With an average of 7h and 54min of daylight, December has the shortest days of the year in Celestyny, Poland.
On the first day of the month, sunrise is at 07:32 and sunset at 15:39. On the last day of December, sunrise is at 07:54 and sunset at 15:45 CET.

Sunshine

In Celestyny, the average sunshine in December is 3.5h.

UV index

In Celestyny, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

In Celestyny, 2.8°C (37°F) is the average high-temperature and -0.5°C (31.1°F) is the average low-temperature during December.

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

In Celestyny, Poland, during December, the rain falls for 8.6 days and regularly aggregates up to 14mm (0.55") of precipitation.

In Celestyny, during December, snow falls for 7.5 days and regularly aggregates up to 30mm (1.18") of snow.

December has the shortest days of the year in Celestyny, Poland, with an average of 7h and 54min of daylight.

In December, the average day length is 7h and 52min.

On the first day of December in Celestyny, sunrise is at 07:32 and sunset at 15:39. On the last day of the month, sunrise is at 07:54 and sunset at 15:45 CET.

The average sunshine duration in December in Celestyny is 3.5h.

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

  • Average high temperature in December: 2.8°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 (0.6°C).

  • Average low temperature in December: -0.5°C

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).

Average pressure in December
Celestyny, Poland

  • Average pressure in December: 1016.5mbar

The month with the highest atmospheric pressure is October (1018mbar).
The month with the lowest atmospheric pressure is July (1014.1mbar).

Average wind speed in December
Celestyny, Poland

  • Average wind speed in December: 14.9km/h

The windiest month (with the highest average wind speed) is December (14.9km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).

Average humidity in December
Celestyny, Poland

  • Average humidity in December: 86%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (64%).

Average rainfall in December
Celestyny, Poland

  • Average rainfall in December: 14mm

The wettest month (with the highest rainfall) is May (31mm).
The driest months (with the least rainfall) are April and November (11mm).

Average rainfall days in December
Celestyny, Poland

  • Average rainfall days in December: 8.6 days

The months with the highest number of rainy days are June and July (14.5 days).
The month with the least rainy days is February (6.5 days).

Average snowfall in December
Celestyny, Poland

  • Average snowfall in December: 30mm

The month with the highest snowfall is January (45mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Celestyny, Poland

  • Average snowfall days in December: 7.5 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
Celestyny, Poland

  • Average daylight in December: 7h and 54min

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

  • Average sunshine in December: 3h and 30min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in December
Celestyny, Poland

  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is June (12.2 days).

Average UV index in December
Celestyny, 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 November (UV index 1).

Average cloud cover in December
Celestyny, Poland

  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Celestyny, Poland

  • Average visibility in December: 8km

The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).