December weather forecast
Horní Slivno, Czech Republic

December

Weather in December

December, the first month of the winter in Horní Slivno, is also an icy month, with temperature in the range of an average low of -1.5°C (29.3°F) and an average high of 2.6°C (36.7°F).

Temperature

In the transition to December, Horní Slivno observes a drop in the average high-temperature, moving from a chilly 7.8°C (46°F) in November to a wintry 2.6°C (36.7°F). December nights in Horní Slivno reveal a minor deviation from daytime highs, with a mean low-temperature of -1.5°C (29.3°F).

Humidity

In Horní Slivno, the average relative humidity in December is 87%.

Rainfall

In Horní Slivno, in December, during 12.6 rainfall days, 39mm (1.54") of precipitation is typically accumulated. In Horní Slivno, during the entire year, the rain falls for 161.2 days and collects up to 462mm (18.19") of precipitation.

Snowfall

Months with snowfall in Horní Slivno are January through May, October through December. In December, it is snowing for 9.1 days. Throughout December, 85mm (3.35") of snow is accumulated. Throughout the year, in Horní Slivno, there are 41.5 snowfall days, and 328mm (12.91") of snow is accumulated.

Daylight

With an average of 8h and 6min of daylight, December has the shortest days of the year in Horní Slivno, Czech Republic.
On the first day of the month, sunrise is at 07:39 and sunset at 16:00. On the last day of December, in Horní Slivno, Czech Republic, sunrise is at 08:00 and sunset at 16:07 CET.

Sunshine

In Horní Slivno, the average sunshine in December is 4.1h.

UV index

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

How cold is December in Horní Slivno?
December temperatures vary between a high-temperature of 2.6°C (36.7°F) and a low-temperature of -1.5°C (29.3°F).
What is the average humidity in December in Horní Slivno?
In December, the average relative humidity is 87%.
How many days does it rain in December in Horní Slivno?
In Horní Slivno, in December, during 12.6 rainfall days, 39mm (1.54") of precipitation is typically accumulated.
How much does it snow in Horní Slivno in December?
In Horní Slivno, in December, during 9.1 snowfall days, 85mm (3.35") of snow is typically accumulated.
What is the month with the shortest days in Horní Slivno?
December has the shortest days of the year, with an average of 8h and 6min of daylight.
How many hours of daylight does Horní Slivno have in December?
The average day length in December in Horní Slivno is 8h and 7min.
When are sunrise and sunset in December in Horní Slivno?
On the first day of December in Horní Slivno, Czech Republic, sunrise is at 07:39 and sunset at 16:00. On the last day of the month, sunrise is at 08:00 and sunset at 16:07 CET.
How many hours of sunshine does Horní Slivno have in December?
In Horní Slivno, the average sunshine duration in December is 4.1h.
What is the UV index intensity in December in Horní Slivno?
In Horní Slivno, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Horní Slivno, Czech Republic
  • Average high temperature in December: 2.6°C

The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (1°C).

  • Average low temperature in December: -1.5°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average pressure in December
Horní Slivno, Czech Republic
  • Average pressure in December: 1018.1mbar

The month with the highest atmospheric pressure is October (1018.3mbar).
The month with the lowest atmospheric pressure is July (1015mbar).

Average wind speed in December
Horní Slivno, Czech Republic
  • Average wind speed in December: 11.8km/h

The windiest month (with the highest average wind speed) is March (12.2km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

Average humidity in December
Horní Slivno, Czech Republic
  • Average humidity in December: 87%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (70%).

Average rainfall in December
Horní Slivno, Czech Republic
  • Average rainfall in December: 39mm

The wettest month (with the highest rainfall) is June (65mm).
The driest month (with the least rainfall) is November (22mm).

Average rainfall days in December
Horní Slivno, Czech Republic
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (9.3 days).

Average snowfall in December
Horní Slivno, Czech Republic
  • Average snowfall in December: 85mm

The month with the highest snowfall is January (105mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Horní Slivno, Czech Republic
  • Average snowfall days in December: 9.1 days

The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Horní Slivno, 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: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in December
Horní Slivno, Czech Republic
  • Average sunshine days in December: 11.1 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is May (10 days).

Average UV index in December
Horní Slivno, 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
Horní Slivno, Czech Republic
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Horní Slivno, 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 month with the lowest visibility is January (7km).

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