December weather forecastKostry, Poland
December
Weather in December
December, the first month of the winter in Kostry, is also an icy month, with an average temperature ranging between min -1.7°C (28.9°F) and max 1.2°C (34.2°F).Temperature
As November transitions into December, Kostry sees a drop in the average high-temperature, transitioning from a frosty 6.5°C (43.7°F) to a cold 1.2°C (34.2°F). Registering an almost steady temperature, Kostry's nights in December see an average low of -1.7°C (28.9°F).Humidity
The average relative humidity in December is 89%.Rainfall
In Kostry, in December, it is raining for 10.2 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, in Kostry, there are 144.9 rainfall days, and 439mm (17.28") of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Kostry. In Kostry, during December, snow falls for 13 days and regularly aggregates up to 89mm (3.5") of snow. In Kostry, during the entire year, snow falls for 61.8 days and aggregates up to 481mm (18.94") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 54min of daylight.On the first day of December, sunrise is at 07:13 and sunset at 15:21. On the last day of the month, sunrise is at 07:34 and sunset at 15:28 CET.
Sunshine
In December, the average sunshine in Kostry is 2.8h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Kostry. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 1 in December translates into this advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kostry, Poland
- Average high temperature in December: 1.2°C
The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in December: -1.7°C
The months with the highest average low temperature are July and August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in December
Kostry, Poland
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is October (1018.6mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in December
Kostry, Poland
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in December
Kostry, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Kostry, Poland
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in December
Kostry, Poland
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Kostry, Poland
- Average snowfall in December: 89mm
The month with the highest snowfall is January (164mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Kostry, Poland
- Average snowfall days in December: 13 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Kostry, Poland
- Average daylight in December: 7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 2h and 48min
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 18min).
Average sunshine days in December
Kostry, Poland
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is January (7.2 days).
Average UV index in December
Kostry, Poland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Kostry, Poland
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Kostry, Poland
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
