December weather forecastHerľany, Slovakia

December

Weather in December

December, the first month of the winter in Herľany, is also a wintry month, with an average temperature ranging between max 1.1°C (34°F) and min -3°C (26.6°F).

Temperature

In Herľany, the beginning of December is marked by a lowered average high-temperature, shifting from November's frosty 7.5°C (45.5°F) to an icy 1.1°C (34°F). Herľany experiences a subtle drop in temperature during the December nights, recording an average of -3°C (26.6°F).

Humidity

The average relative humidity in December is 87%.

Rainfall

In Herľany, Slovakia, during December, the rain falls for 9.1 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, in Herľany, there are 153.5 rainfall days, and 482mm (18.98") of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Herľany, during December, snow falls for 9.2 days and regularly aggregates up to 81mm (3.19") of snow. Throughout the year, in Herľany, there are 37.2 snowfall days, and 350mm (13.78") of snow is accumulated.

Daylight

December has the shortest days of the year in Herľany, with an average of 8h and 18min of daylight.
On the first day of the month, sunrise is at 07:06 and sunset at 15:40. On the last day of December, in Herľany, sunrise is at 07:27 and sunset at 15:47 CET.

Sunshine

The month with the least sunshine is December, with an average of 4h of sunshine.

UV index

The month with the lowest UV index in Herľany, Slovakia, is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 1 during December translates into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

During December, Herľany experiences an average high-temperature of 1.1°C (34°F) and a low-temperature of -3°C (26.6°F).

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

In December, in Herľany, Slovakia, the rain falls for 9.1 days. Throughout December, 30mm (1.18") of precipitation is accumulated.

In December, in Herľany, Slovakia, it is snowing for 9.2 days. Throughout December, 81mm (3.19") of snow is accumulated.

With an average of 8h and 18min of daylight, December has the shortest days of the year in Herľany.

In December, the average day length in Herľany is 8h and 20min.

In December, on the first day of the month, sunrise is at 07:06 and sunset at 15:40. On the last day of the month, sunrise is at 07:27 and sunset at 15:47 CET.

The month with the least sunshine in Herľany is December, with an average of 4h of sunshine.

In December, the average sunshine duration in Herľany, Slovakia, is 4h.

With an average maximum UV index of 1, December is the month with the lowest UV index.

In Herľany, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from 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
Herľany, Slovakia

  • Average high temperature in December: 1.1°C

The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (-0.5°C).

  • Average low temperature in December: -3°C

The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is January (-5°C).

Average pressure in December
Herľany, Slovakia

  • Average pressure in December: 1019.8mbar

The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is June (1014.1mbar).

Average wind speed in December
Herľany, Slovakia

  • Average wind speed in December: 8.6km/h

The windiest month (with the highest average wind speed) is March (10.5km/h).
The calmest month (with the lowest average wind speed) is November (8km/h).

Average humidity in December
Herľany, Slovakia

  • Average humidity in December: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).

Average rainfall in December
Herľany, Slovakia

  • Average rainfall in December: 30mm

The wettest month (with the highest rainfall) is June (76mm).
The driest months (with the least rainfall) are January and September (25mm).

Average rainfall days in December
Herľany, Slovakia

  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is December (9.1 days).

Average snowfall in December
Herľany, Slovakia

  • Average snowfall in December: 81mm

The month with the highest snowfall is January (117mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Herľany, Slovakia

  • Average snowfall days in December: 9.2 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Herľany, Slovakia

  • Average daylight in December: 8h and 18min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

Average sunshine days in December
Herľany, Slovakia

  • Average sunshine days in December: 15.3 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (8.4 days).

Average UV index in December
Herľany, Slovakia

  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Herľany, Slovakia

  • Average cloud cover in December: 61

The month with the most cloud cover is December (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in December
Herľany, Slovakia

  • Average visibility in December: 7km

The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and December (7km).