December weather forecast
Čertousy, Czech Republic

December

Weather in December

The first month of the winter, December, is also an icy month in Čertousy, Czech Republic, with temperature in the range of an average low of -1°C (30.2°F) and an average high of 3.4°C (38.1°F).

Temperature

The shift from November to December coincides with a small decrease in the average high-temperature, down to a cold 3.4°C (38.1°F) from a frosty 7.9°C (46.2°F). Čertousy sees a gentle drop from the daily peak temperature in December, with an average low settling at a subzero cold -1°C (30.2°F).

Humidity

In December, the average relative humidity in Čertousy is 84%.

Rainfall

In Čertousy, in December, during 12.2 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Čertousy, during the entire year, the rain falls for 167.3 days and collects up to 536mm (21.1") of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Čertousy, in December, during 8.9 snowfall days, 89mm (3.5") of snow is typically accumulated. Throughout the year, there are 44.5 snowfall days, and 393mm (15.47") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 6min of daylight.
On the first day of December in Čertousy, sunrise is at 07:39 and sunset at 16:02. On the last day of the month, sunrise is at 08:00 and sunset at 16:08 CET.

Sunshine

In Čertousy, the average sunshine in December is 3.9h.

UV index

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

How cold is December in Čertousy?
December temperatures in Čertousy vary between a high-temperature of 3.4°C (38.1°F) and a low-temperature of -1°C (30.2°F).
What is the average humidity in December in Čertousy?
The average relative humidity in December in Čertousy, Czech Republic, is 84%.
How many days does it rain in December in Čertousy?
In Čertousy, Czech Republic, in December, during 12.2 rainfall days, 36mm (1.42") of precipitation is typically accumulated.
How many days does it snow in December in Čertousy?
In Čertousy, in December, during 8.9 snowfall days, 89mm (3.5") of snow is typically accumulated.
What is the month with the shortest days in Čertousy?
December has the shortest days of the year in Čertousy, with an average of 8h and 6min of daylight.
How many hours of daylight does Čertousy have in December?
The average day length in December in Čertousy is 8h and 9min.
When is the sunrise / sunset in December in Čertousy?
In December, on the first day of the month, sunrise is at 07:39 and sunset at 16:02. On the last day of the month, in Čertousy, Czech Republic, sunrise is at 08:00 and sunset at 16:08 CET.
How long on average sun shines in December in Čertousy?
In Čertousy, the average sunshine duration in December is 3.9h.
What is the UV index intensity in December in Čertousy?
In Čertousy, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Čertousy, Czech Republic
  • Average high temperature in December: 3.4°C

The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (1.4°C).

  • Average low temperature in December: -1°C

The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).

Average pressure in December
Čertousy, Czech Republic
  • Average pressure in December: 1018.5mbar

The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is July (1015.2mbar).

Average wind speed in December
Čertousy, Czech Republic
  • Average wind speed in December: 14km/h

The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).

Average humidity in December
Čertousy, Czech Republic
  • Average humidity in December: 84%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (69%).

Average rainfall in December
Čertousy, Czech Republic
  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is June (77mm).
The driest month (with the least rainfall) is November (24mm).

Average rainfall days in December
Čertousy, Czech Republic
  • Average rainfall days in December: 12.2 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (8.7 days).

Average snowfall in December
Čertousy, Czech Republic
  • Average snowfall in December: 89mm

The month with the highest snowfall is January (122mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Čertousy, Czech Republic
  • Average snowfall days in December: 8.9 days

The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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 6min).

  • Average sunshine in December: 3h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Čertousy, Czech Republic
  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is May (7.8 days).

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

Average cloud cover in December
Čertousy, Czech Republic
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Čertousy, 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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