December weather forecastPostoliska, Poland
December
Weather in December
December, the first month of the winter in Postoliska, is also a wintry month, with an average temperature varying between 1.7°C (35.1°F) and -1.4°C (29.5°F).Temperature
Setting in of December comes with a decrease in the average high-temperature, moving from a chilly 6.7°C (44.1°F) in November to a cold 1.7°C (35.1°F). December nighttime temperatures hover close to the daytime peak with an average of -1.4°C (29.5°F).Humidity
In December, the average relative humidity in Postoliska is 87%.Rainfall
In Postoliska, Poland, in December, during 9.6 rainfall days, 29mm (1.14") of precipitation is typically accumulated. Throughout the year, in Postoliska, there are 128.4 rainfall days, and 336mm (13.23") of precipitation is accumulated.Snowfall
Months with snowfall in Postoliska are January through May, October through December. In Postoliska, in December, during 8.3 snowfall days, 58mm (2.28") of snow is typically accumulated. In Postoliska, Poland, during the entire year, snow falls for 42.5 days and aggregates up to 316mm (12.44") of snow.Daylight
The month with the shortest days in Postoliska, Poland, is December, with an average of 7h and 48min of daylight.On the first day of December, sunrise is at 07:22 and sunset at 15:24. On the last day of the month, sunrise is at 07:44 and sunset at 15:30 CET.
Sunshine
In Postoliska, the average sunshine in December is 3.3h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Postoliska, Poland
- Average high temperature in December: 1.7°C
The warmest months (with the highest average high temperature) are July and August (24.7°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in December: -1.4°C
The months with the highest average low temperature are July and August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-4.1°C).
Average pressure in December
Postoliska, Poland
- Average pressure in December: 1016.1mbar
The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in December
Postoliska, Poland
- Average wind speed in December: 14.2km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).
Average humidity in December
Postoliska, Poland
- Average humidity in December: 87%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Postoliska, Poland
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is May (53mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in December
Postoliska, Poland
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Postoliska, Poland
- Average snowfall in December: 58mm
The month with the highest snowfall is January (109mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Postoliska, Poland
- Average snowfall days in December: 8.3 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Postoliska, Poland
- Average daylight in December: 7h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in December: 3h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Postoliska, Poland
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in December
Postoliska, Poland
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Postoliska, Poland
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Postoliska, Poland
- Average visibility in December: 8km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January and February (7km).
