December weather forecast
Bystročice, Czech Republic

December

Weather in December

December, the first month of the winter in Bystročice, is also a wintry month, with an average temperature fluctuating between -2.8°C (27°F) and 1.7°C (35.1°F).

Temperature

The onset of December results in a decrease in the average high-temperature, receding from a frosty 7.3°C (45.1°F) in November to a cold 1.7°C (35.1°F). December nights reveal a minor deviation from daytime highs, with a mean low-temperature of -2.8°C (27°F).

Humidity

In December, the average relative humidity is 87%.

Rainfall

In Bystročice, Czech Republic, during December, the rain falls for 9.8 days and regularly aggregates up to 26mm (1.02") of precipitation. Throughout the year, there are 140.8 rainfall days, and 437mm (17.2") of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Bystročice, in December, snow falls for 6.5 days, with typically accumulated 31mm (1.22") of snow. In Bystročice, during the entire year, snow falls for 30.5 days and aggregates up to 220mm (8.66") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 12min of daylight.
On the first day of December, sunrise is at 07:26 and sunset at 15:54. On the last day of the month, sunrise is at 07:47 and sunset at 16:01 CET.

Sunshine

In December, the average sunshine is 4.2h.

UV index

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

How cold is December?
In Bystročice, 1.7°C (35.1°F) is the average high-temperature and -2.8°C (27°F) is the average low-temperature during December.
What is the average humidity in December?
The average relative humidity in December is 87%.
How much does it rain in December?
In Bystročice, in December, during 9.8 rainfall days, 26mm (1.02") of precipitation is typically accumulated.
How much does it snow in December?
In Bystročice, during December, snow falls for 6.5 days and regularly aggregates up to 31mm (1.22") of snow.
What is the month with the shortest days?
With an average of 8h and 12min of daylight, December has the shortest days of the year.
What is the average length of the day in December?
In December, the average day length in Bystročice is 8h and 14min.
When is the sunrise / sunset in December?
In December, on the first day of the month, sunrise is at 07:26 and sunset at 15:54. On the last day of the month, sunrise is at 07:47 and sunset at 16:01 CET.
How many hours of sunshine does Bystročice have in December?
The average sunshine duration in December is 4.2h.
What is the UV index reading in December in Bystročice?
In Bystročice, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe 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
Bystročice, Czech Republic
  • Average high temperature in December: 1.7°C

The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (-0.3°C).

  • Average low temperature in December: -2.8°C

The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (-5°C).

Average pressure in December
Bystročice, Czech Republic
  • Average pressure in December: 1019.1mbar

The month with the highest atmospheric pressure is December (1019.1mbar).
The months with the lowest atmospheric pressure are June and July (1015mbar).

Average wind speed in December
Bystročice, Czech Republic
  • Average wind speed in December: 12.2km/h

The windiest month (with the highest average wind speed) is March (13.1km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

Average humidity in December
Bystročice, Czech Republic
  • Average humidity in December: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (69%).

Average rainfall in December
Bystročice, Czech Republic
  • Average rainfall in December: 26mm

The wettest month (with the highest rainfall) is June (65mm).
The driest month (with the least rainfall) is April (18mm).

Average rainfall days in December
Bystročice, Czech Republic
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in December
Bystročice, Czech Republic
  • Average snowfall in December: 31mm

The month with the highest snowfall is January (84mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Bystročice, Czech Republic
  • Average snowfall days in December: 6.5 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Bystročice, Czech Republic
  • Average daylight in December: 8h and 1min

The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).

Average sunshine days in December
Bystročice, Czech Republic
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is June (10.2 days).

Average UV index in December
Bystročice, Czech Republic
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in December
Bystročice, Czech Republic
  • Average cloud cover in December: 59

The months with the most cloud cover are January and February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Bystročice, Czech Republic
  • Average visibility in December: 8km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February and December (8km).

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