December weather forecastKosten, Bulgaria

December weather for Kosten, Bulgaria: In Kosten, Bulgaria, in December, snow falls for 4.9 days, with typically accumulated 50mm (1.97") of snow. The first month of the winter, December, is still a cold month in Kosten, Bulgaria, with temperature in the range of an average low of -0.5°C (31.1°F) and an average high of 5.6°C (42.1°F).

December

Weather in December

The first month of the winter, December, is still a cold month in Kosten, Bulgaria, with temperature in the range of an average low of -0.5°C (31.1°F) and an average high of 5.6°C (42.1°F).

Temperature

Start of December brings a shift in the average high-temperature, falling from November's fresh 11.7°C (53.1°F) to a wintry 5.6°C (42.1°F). During December, Kosten records a consistent average nighttime temperature of -0.5°C (31.1°F).

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Kosten, in December, it is raining for 9.5 days, with typically 26mm (1.02") of accumulated precipitation. Throughout the year, there are 137.2 rainfall days, and 394mm (15.51") of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Kosten. In Kosten, in December, during 4.9 snowfall days, 50mm (1.97") of snow is typically accumulated. Throughout the year, in Kosten, there are 22.2 snowfall days, and 206mm (8.11") of snow is accumulated.

Daylight

The month with the shortest days in Kosten is December, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 07:23 and sunset at 16:39. On the last day of December, in Kosten, sunrise is at 07:42 and sunset at 16:48 EET.

Sunshine

In Kosten, the average sunshine in December is 5.3h.

UV index

The months with the lowest UV index in Kosten, Bulgaria, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in December transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Enhance your sun protection with tightly woven, yet airy clothing. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

In Kosten, in December, the average high-temperature is 5.6°C (42.1°F), and the average low-temperature is -0.5°C (31.1°F). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 31°C (87.8°F).

The average relative humidity in December in Kosten is 80%.

In Kosten, during December, the rain falls for 9.5 days and regularly aggregates up to 26mm (1.02") of precipitation.

In Kosten, Bulgaria, in December, snow falls for 4.9 days, with typically accumulated 50mm (1.97") of snow.

The month with the shortest days in Kosten is December, with an average of 9h and 6min of daylight.

In December, the average day length in Kosten is 9h and 6min.

In December, on the first day of the month, sunrise is at 07:23 and sunset at 16:39. On the last day of the month, in Kosten, sunrise is at 07:42 and sunset at 16:48 EET.

In Kosten, Bulgaria, the average sunshine duration in December is 5.3h.

The months with the lowest UV index in Kosten, Bulgaria, are January, February, November and December, with an average maximum UV index of 2.

The average daily maximum UV index in December in Kosten, Bulgaria, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Kosten, Bulgaria

  • Average high temperature in December: 5.6°C

The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in December: -0.5°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

Average pressure in December
Kosten, Bulgaria

  • Average pressure in December: 1020.2mbar

The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is July (1012.7mbar).

Average wind speed in December
Kosten, Bulgaria

  • Average wind speed in December: 11.2km/h

The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is July (9.3km/h).

Average humidity in December
Kosten, Bulgaria

  • Average humidity in December: 80%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (58%).

Average rainfall in December
Kosten, Bulgaria

  • Average rainfall in December: 26mm

The wettest month (with the highest rainfall) is June (61mm).
The driest month (with the least rainfall) is September (20mm).

Average rainfall days in December
Kosten, Bulgaria

  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is August (8.3 days).

Average snowfall in December
Kosten, Bulgaria

  • Average snowfall in December: 50mm

The month with the highest snowfall is January (61mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Kosten, Bulgaria

  • Average snowfall days in December: 4.9 days

The month with the highest number of snowfall days is January (7.2 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
Kosten, Bulgaria

  • Average daylight in December: 9h and 6min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 5h and 18min

The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in December
Kosten, Bulgaria

  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is August (21.4 days).
The month with the least sunshine days is May (11 days).

Average UV index in December
Kosten, Bulgaria

  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Kosten, Bulgaria

  • Average cloud cover in December: 44

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in December
Kosten, Bulgaria

  • Average visibility in December: 9km

The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).