December weather forecastKostel, Croatia

December

Weather in December

The first month of the winter, December, is also a wintry month in Kostel, Croatia, with an average temperature varying between -1.6°C (29.1°F) and 4.3°C (39.7°F).

Temperature

December indicates a minor shift in the average high-temperature, from November's frosty 9.1°C (48.4°F) to a wintry 4.3°C (39.7°F). In Kostel, December nights cool down to an average of -1.6°C (29.1°F).

Humidity

The average relative humidity in December in Kostel, Croatia, is 85%.

Rainfall

In December, in Kostel, the rain falls for 9.9 days. Throughout December, 46mm (1.81") of precipitation is accumulated. Throughout the year, in Kostel, there are 179.3 rainfall days, and 854mm (33.62") of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Kostel. In December, in Kostel, it is snowing for 4.9 days. Throughout December, 81mm (3.19") of snow is accumulated. Throughout the year, there are 26.3 snowfall days, and 511mm (20.12") of snow is accumulated.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year.
On the first day of December in Kostel, Croatia, sunrise is at 07:19 and sunset at 16:12. On the last day of the month, sunrise is at 07:39 and sunset at 16:21 CET.

Sunshine

In December, the average sunshine in Kostel is 5.4h.

UV index

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 2 during December translates into the following guidance:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

During December, Kostel experiences an average high-temperature of 4.3°C (39.7°F) and a low-temperature of -1.6°C (29.1°F).

The average relative humidity in December in Kostel is 85%.

In Kostel, during December, the rain falls for 9.9 days and regularly aggregates up to 46mm (1.81") of precipitation.

In Kostel, in December, snow falls for 4.9 days, with typically accumulated 81mm (3.19") of snow.

With an average of 8h and 42min of daylight, December has the shortest days of the year in Kostel, Croatia.

The average day length in December in Kostel is 8h and 41min.

In December, on the first day of the month, sunrise is at 07:19 and sunset at 16:12. On the last day of the month, in Kostel, sunrise is at 07:39 and sunset at 16:21 CET.

The average sunshine duration in December in Kostel, Croatia, is 5.4h.

The average daily maximum UV index in December in Kostel is 2. A UV Index estimate of 2, and below, represents 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
Kostel, Croatia

  • Average high temperature in December: 4.3°C

The warmest month (with the highest average high temperature) is August (25.2°C).
The month with the lowest average high temperature is January (2.6°C).

  • Average low temperature in December: -1.6°C

The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

Average pressure in December
Kostel, Croatia

  • Average pressure in December: 1020.4mbar

The month with the highest atmospheric pressure is December (1020.4mbar).
The months with the lowest atmospheric pressure are May and June (1015mbar).

Average wind speed in December
Kostel, Croatia

  • Average wind speed in December: 6.4km/h

The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest month (with the lowest average wind speed) is August (5.5km/h).

Average humidity in December
Kostel, Croatia

  • Average humidity in December: 85%

The month with the highest relative humidity is November (87%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Kostel, Croatia

  • Average rainfall in December: 46mm

The wettest month (with the highest rainfall) is May (120mm).
The driest month (with the least rainfall) is January (33mm).

Average rainfall days in December
Kostel, Croatia

  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (22.9 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in December
Kostel, Croatia

  • Average snowfall in December: 81mm

The month with the highest snowfall is February (185mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Kostel, Croatia

  • Average snowfall days in December: 4.9 days

The month with the highest number of snowfall days is January (8.6 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
Kostel, Croatia

  • Average daylight in December: 8h and 42min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 5h and 24min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in December
Kostel, Croatia

  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is May (5.9 days).

Average UV index in December
Kostel, Croatia

  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).

Average cloud cover in December
Kostel, Croatia

  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Kostel, Croatia

  • Average visibility in December: 8km

The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January, February, October and November (7km).