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
Start of December brings a shift in the average high-temperature, falling from November's chilly 7.2°C (45°F) to a wintry 1.8°C (35.2°F). The month of December in Kostera shows a minor drop from daytime temperatures, generally recording a low average of -1.8°C (28.8°F).Humidity
In December, the average relative humidity in Kostera is 87%.Rainfall
In Kostera, in December, it is raining for 10.2 days, with typically 36mm (1.42") of accumulated precipitation. In Kostera, Poland, during the entire year, the rain falls for 158.9 days and collects up to 516mm (20.31") of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Kostera, in December, snow falls for 11.8 days, with typically accumulated 105mm (4.13") of snow. Throughout the year, in Kostera, Poland, there are 58 snowfall days, and 495mm (19.49") of snow is accumulated.Daylight
December has the shortest days of the year in Kostera, with an average of 8h and 6min of daylight.On the first day of the month, sunrise is at 07:16 and sunset at 15:35. On the last day of December, sunrise is at 07:37 and sunset at 15:42 CET.
Sunshine
In December, the average sunshine in Kostera is 3.4h.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Kostera in December?
What is the average humidity in December in Kostera?
How many days does it rain in December in Kostera?
How much does it snow in Kostera in December?
What is the month with the shortest days in Kostera?
How many hours of daylight does Kostera have in December?
What time are sunrise and sunset in December in Kostera?
How many hours of sunshine does Kostera have in December?
What are the months with the lowest UV index in Kostera?
How high is the UV index in December in Kostera?
Average temperature in December
Kostera, Poland
- Average high temperature in December: 1.8°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in December: -1.8°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).
Average pressure in December
Kostera, Poland
- Average pressure in December: 1017.6mbar
The month with the highest atmospheric pressure is October (1018.7mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).
Average wind speed in December
Kostera, Poland
- Average wind speed in December: 15.2km/h
The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in December
Kostera, Poland
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and August (70%).
Average rainfall in December
Kostera, Poland
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is November (27mm).
Average rainfall days in December
Kostera, Poland
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Kostera, Poland
- Average snowfall in December: 105mm
The month with the highest snowfall is January (162mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Kostera, Poland
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is January (17.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Kostera, Poland
- Average daylight in December: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 54min).
Average sunshine days in December
Kostera, Poland
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in December
Kostera, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Kostera, Poland
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Kostera, Poland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).
