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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).





