December weather forecast
Siarzewo, Poland

December

Weather in December

December, the first month of the winter in Siarzewo, is also a wintry month, with an average temperature varying between -1°C (30.2°F) and 2.5°C (36.5°F).

Temperature

December signifies a minor drop in average high-temperature, transitioning from a frosty 7°C (44.6°F) in November to a cold 2.5°C (36.5°F). The December nights show a slight decrease to a mean low-temperature of -1°C (30.2°F).

Humidity

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

Rainfall

In Siarzewo, in December, it is raining for 9.4 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, there are 126.1 rainfall days, and 320mm (12.6") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Siarzewo. In December, in Siarzewo, it is snowing for 5.7 days. Throughout December, 28mm (1.1") of snow is accumulated. In Siarzewo, during the entire year, snow falls for 30.5 days and aggregates up to 196mm (7.72") of snow.

Daylight

The month with the shortest days is December, with an average of 7h and 42min of daylight.
On the first day of December, sunrise is at 07:34 and sunset at 15:32. On the last day of the month, sunrise is at 07:57 and sunset at 15:38 CET.

Sunshine

In Siarzewo, the average sunshine in December is 3.2h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Siarzewo. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 1 during December leads to these advisories:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

How cold is it in Siarzewo in December?
An average high-temperature, in December, in Siarzewo, is 2.5°C (36.5°F) and the average low-temperature is -1°C (30.2°F).
What is the average humidity in December in Siarzewo?
In Siarzewo, the average relative humidity in December is 87%.
How much does it rain in Siarzewo in December?
In December, in Siarzewo, Poland, the rain falls for 9.4 days. Throughout December, 22mm (0.87") of precipitation is accumulated.
How much does it snow in Siarzewo in December?
In December, in Siarzewo, Poland, it is snowing for 5.7 days. Throughout December, 28mm (1.1") of snow is accumulated.
What is the month with the shortest days in Siarzewo?
December has the shortest days of the year in Siarzewo, with an average of 7h and 42min of daylight.
How many hours of daylight does Siarzewo have in December?
The average day length in December in Siarzewo is 7h and 42min.
What time are sunrise and sunset in December in Siarzewo?
On the first day of December in Siarzewo, sunrise is at 07:34 and sunset at 15:32. On the last day of the month, sunrise is at 07:57 and sunset at 15:38 CET.
How long on average sun shines in December in Siarzewo?
The average sunshine duration in December in Siarzewo is 3.2h.
What is the month with the lowest UV index in Siarzewo?
The months with the lowest UV index in Siarzewo, Poland, are January, November and December, with an average maximum UV index of 1.
What is the UV index reading in December in Siarzewo?
In Siarzewo, Poland, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to 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
Siarzewo, Poland
  • Average high temperature in December: 2.5°C

The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (0.3°C).

  • Average low temperature in December: -1°C

The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).

Average pressure in December
Siarzewo, Poland
  • Average pressure in December: 1015mbar

The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).

Average wind speed in December
Siarzewo, Poland
  • Average wind speed in December: 14.2km/h

The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.7km/h).

Average humidity in December
Siarzewo, Poland
  • Average humidity in December: 87%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).

Average rainfall in December
Siarzewo, Poland
  • Average rainfall in December: 22mm

The wettest month (with the highest rainfall) is May (47mm).
The driest month (with the least rainfall) is April (15mm).

Average rainfall days in December
Siarzewo, Poland
  • Average rainfall days in December: 9.4 days

The months with the highest number of rainy days are May and July (14.8 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in December
Siarzewo, Poland
  • Average snowfall in December: 28mm

The month with the highest snowfall is January (62mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Siarzewo, Poland
  • Average snowfall days in December: 5.7 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Siarzewo, Poland
  • Average daylight in December: 7h and 4min

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

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in December
Siarzewo, Poland
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (13.8 days).

Average UV index in December
Siarzewo, Poland
  • Average UV index in December: 1

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

Average cloud cover in December
Siarzewo, Poland
  • Average cloud cover in December: 70

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Siarzewo, Poland
  • Average visibility in December: 8km

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

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