December weather forecastOpacie, Poland

December

Weather in December

December, the first month of the winter in Opacie, is also a wintry month, with temperature in the range of an average low of -2.6°C (27.3°F) and an average high of 1.3°C (34.3°F).

Temperature

Opacie in December undergoes a mild reduction in the average high-temperature, shifting from November's chilly 7.3°C (45.1°F) to a cold 1.3°C (34.3°F). Opacie encounters an average temperature dip to a freezing cold -2.6°C (27.3°F) throughout December, subtly lower than its daytime maximum.

Humidity

In December, the average relative humidity in Opacie is 88%.

Rainfall

In Opacie, in December, during 11.2 rainfall days, 46mm (1.81") of precipitation is typically accumulated. Throughout the year, in Opacie, there are 155.5 rainfall days, and 507mm (19.96") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 12.2 days. Throughout December, 155mm (6.1") of snow is accumulated. In Opacie, during the entire year, snow falls for 58.2 days and aggregates up to 572mm (22.52") of snow.

Daylight

With an average of 8h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:10 and sunset at 15:36. On the last day of December, sunrise is at 07:31 and sunset at 15:43 CET.

Sunshine

In Opacie, the average sunshine in December is 3.8h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 1 during December leads to these instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.

Frequently asked questions

The average high-temperature and low-temperature during December are 1.3°C (34.3°F) and -2.6°C (27.3°F) respectively.

In Opacie, the average relative humidity in December is 88%.

In Opacie, Poland, during December, the rain falls for 11.2 days and regularly aggregates up to 46mm (1.81") of precipitation.

In Opacie, Poland, during December, snow falls for 12.2 days and regularly aggregates up to 155mm (6.1") of snow.

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

In December, the average day length is 8h and 12min.

On the first day of December in Opacie, Poland, sunrise is at 07:10 and sunset at 15:36. On the last day of the month, sunrise is at 07:31 and sunset at 15:43 CET.

In Opacie, the average sunshine duration in December is 3.8h.

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

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents 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
Opacie, Poland

  • Average high temperature in December: 1.3°C

The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (-0.8°C).

  • Average low temperature in December: -2.6°C

The months with the highest average low temperature are July and August (13.1°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).

Average pressure in December
Opacie, Poland

  • Average pressure in December: 1018.9mbar

The month with the highest atmospheric pressure is October (1019.1mbar).
The months with the lowest atmospheric pressure are June and July (1014.4mbar).

Average wind speed in December
Opacie, Poland

  • Average wind speed in December: 13.1km/h

The windiest month (with the highest average wind speed) is December (13.1km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).

Average humidity in December
Opacie, Poland

  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (72%).

Average rainfall in December
Opacie, Poland

  • Average rainfall in December: 46mm

The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is March (26mm).

Average rainfall days in December
Opacie, Poland

  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (9 days).

Average snowfall in December
Opacie, Poland

  • Average snowfall in December: 155mm

The month with the highest snowfall is January (159mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Opacie, Poland

  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Opacie, 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: 3h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).

Average sunshine days in December
Opacie, Poland

  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is August (18.4 days).
The month with the least sunshine days is January (8.1 days).

Average UV index in December
Opacie, 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 and December (UV index 1).

Average cloud cover in December
Opacie, Poland

  • Average cloud cover in December: 64

The months with the most cloud cover are January and February (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Opacie, Poland

  • Average visibility in December: 8km

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