December weather forecast
Starý Vestec, Czech Republic

December

Weather in December

December, the first month of the winter in Starý Vestec, is also a wintry month, with an average temperature varying between -1°C (30.2°F) and 3.4°C (38.1°F).

Temperature

The advent of December brings a subtle shift in temperature, with the average high moving from a chilly 7.9°C (46.2°F) in November to a cold 3.4°C (38.1°F). Night temperatures during December stabilize at an average of -1°C (30.2°F), closely mirroring the daytime temperatures.

Humidity

The average relative humidity in December is 84%.

Rainfall

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

Snowfall

Months with snowfall are January through May, October through December. In Starý Vestec, in December, during 8.9 snowfall days, 89mm (3.5") of snow is typically accumulated. In Starý Vestec, during the entire year, snow falls for 44.5 days and aggregates up to 393mm (15.47") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 6min of daylight.
On the first day of December, sunrise is at 07:38 and sunset at 16:01. On the last day of the month, sunrise is at 07:59 and sunset at 16:07 CET.

Sunshine

In December, the average sunshine is 3.9h.

UV index

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Frequently asked questions

How cold does it get in December?
In Starý Vestec, 3.4°C (38.1°F) is the average high-temperature and -1°C (30.2°F) is the average low-temperature during December.
What is the average humidity in December?
In Starý Vestec, the average relative humidity in December is 84%.
How many days does it rain in December?
In Starý Vestec, during December, the rain falls for 12.2 days and regularly aggregates up to 36mm (1.42") of precipitation.
How many days does it snow in December in Starý Vestec?
In December, it is snowing for 8.9 days. Throughout December, 89mm (3.5") of snow is accumulated.
What is the month with the shortest days?
The month with the shortest days in Starý Vestec is December, with an average of 8h and 6min of daylight.
What is the average length of the day in December?
In December, the average day length is 8h and 8min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 07:38 and sunset at 16:01. On the last day of the month, sunrise is at 07:59 and sunset at 16:07 CET.
How long on average sun shines in December?
The average sunshine duration in December is 3.9h.
What is the UV index intensity in December?
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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
Starý Vestec, 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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