December weather forecastMielnik, Poland

December

Weather in December

The first month of the winter, December, is also an icy month in Mielnik, Poland, with an average temperature fluctuating between -2°C (28.4°F) and 0.8°C (33.4°F).

Temperature

December comes with a decrease in the average high-temperature, falling from a wintry 5.9°C (42.6°F) in November to a still icy 0.8°C (33.4°F). Mielnik records a negligible downturn from daytime temperatures, averaging a low of -2°C (28.4°F) in the month of December.

Humidity

In December, the average relative humidity is 89%.

Rainfall

In Mielnik, during December, the rain falls for 11.1 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, there are 163.1 rainfall days, and 492mm (19.37") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Mielnik. In December, in Mielnik, it is snowing for 14.4 days. Throughout December, 114mm (4.49") of snow is accumulated. Throughout the year, there are 65.9 snowfall days, and 534mm (21.02") of snow is accumulated.

Daylight

With an average of 7h and 48min of daylight, December has the shortest days of the year in Mielnik.
On the first day of the month, sunrise is at 07:15 and sunset at 15:18. On the last day of December, in Mielnik, Poland, sunrise is at 07:37 and sunset at 15:24 CET.

Sunshine

The average sunshine in December is 1.9h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Mielnik. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

In December, the average high-temperature and low-temperature are 0.8°C (33.4°F) and -2°C (28.4°F) respectively.

The average relative humidity in December is 89%.

In Mielnik, Poland, in December, during 11.1 rainfall days, 40mm (1.57") of precipitation is typically accumulated.

In Mielnik, Poland, during December, snow falls for 14.4 days and regularly aggregates up to 114mm (4.49") of snow.

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

In Mielnik, Poland, the average day length in December is 7h and 47min.

On the first day of December in Mielnik, sunrise is at 07:15 and sunset at 15:18. On the last day of the month, sunrise is at 07:37 and sunset at 15:24 CET.

The average sunshine duration in December in Mielnik is 1.9h.

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

In December, the average daily maximum UV index in Mielnik is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Mielnik, Poland

  • Average high temperature in December: 0.8°C

The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (-1.5°C).

  • Average low temperature in December: -2°C

The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is January (-4.9°C).

Average pressure in December
Mielnik, Poland

  • Average pressure in December: 1016.2mbar

The month with the highest atmospheric pressure is October (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).

Average wind speed in December
Mielnik, Poland

  • Average wind speed in December: 15km/h

The windiest month (with the highest average wind speed) is December (15km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).

Average humidity in December
Mielnik, Poland

  • Average humidity in December: 89%

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

Average rainfall in December
Mielnik, Poland

  • Average rainfall in December: 40mm

The wettest month (with the highest rainfall) is May (72mm).
The driest month (with the least rainfall) is February (27mm).

Average rainfall days in December
Mielnik, Poland

  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in December
Mielnik, Poland

  • Average snowfall in December: 114mm

The month with the highest snowfall is January (173mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Mielnik, Poland

  • Average snowfall days in December: 14.4 days

The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mielnik, 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: 1h and 54min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).

Average sunshine days in December
Mielnik, Poland

  • Average sunshine days in December: 8.3 days

The month with the most sunshine days is October (15.2 days).
The month with the least sunshine days is January (7.2 days).

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

Average cloud cover in December
Mielnik, Poland

  • Average cloud cover in December: 74

The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Mielnik, Poland

  • Average visibility in December: 8km

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