Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The arrival of December corresponds with a reduction in the average high-temperature, down from November's fresh 11.9°C (53.4°F) to a frosty 6.2°C (43.2°F). The temperature lowers to an average of -1.5°C (29.3°F) during December nights.Humidity
In December, the average relative humidity is 76%.Rainfall
In Kostandovo, in December, during 9.6 rainfall days, 28mm (1.1") of precipitation is typically accumulated. Throughout the year, there are 148.7 rainfall days, and 459mm (18.07") of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Kostandovo, Bulgaria. In December, it is snowing for 3.8 days. Throughout December, 75mm (2.95") of snow is accumulated. Throughout the year, there are 17.4 snowfall days, and 358mm (14.09") of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Kostandovo.On the first day of the month, sunrise is at 07:32 and sunset at 16:53. On the last day of December, sunrise is at 07:51 and sunset at 17:01 EET.
Sunshine
In Kostandovo, Bulgaria, the average sunshine in December is 6.2h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 during December leads to these advisories:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Kostandovo during December?
What is the average humidity in December in Kostandovo?
How much does it rain in Kostandovo in December?
How much does it snow in Kostandovo in December?
What is the month with the shortest days in Kostandovo?
What is the average length of the day in December in Kostandovo?
When are sunrise and sunset in December in Kostandovo?
How long on average sun shines in December in Kostandovo?
When is the lowest UV index in Kostandovo?
How high is the UV index in December in Kostandovo?
Average temperature in December
Kostandovo, Bulgaria
- Average high temperature in December: 6.2°C
The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in December
Kostandovo, Bulgaria
- Average pressure in December: 1020.4mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in December
Kostandovo, Bulgaria
- Average wind speed in December: 6.9km/h
The windiest month (with the highest average wind speed) is March (7.7km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in December
Kostandovo, Bulgaria
- Average humidity in December: 76%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (58%).
Average rainfall in December
Kostandovo, Bulgaria
- Average rainfall in December: 28mm
The wettest month (with the highest rainfall) is June (61mm).
The driest month (with the least rainfall) is August (24mm).
Average rainfall days in December
Kostandovo, Bulgaria
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (7.2 days).
Average snowfall in December
Kostandovo, Bulgaria
- Average snowfall in December: 75mm
The month with the highest snowfall is January (117mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Kostandovo, Bulgaria
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Kostandovo, Bulgaria
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in December
Kostandovo, Bulgaria
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is May (8.2 days).
Average UV index in December
Kostandovo, Bulgaria
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Kostandovo, Bulgaria
- Average cloud cover in December: 35
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Kostandovo, Bulgaria
- Average visibility in December: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January and February (8km).
