December weather forecastSiercza, Poland
December
Weather in December
The first month of the winter, December, is also a wintry month in Siercza, Poland, with temperature in the range of an average low of -1.5°C (29.3°F) and an average high of 2.6°C (36.7°F).Temperature
Transition into December marks a drop in the average high-temperature, moving from a frosty 8.6°C (47.5°F) in November to a wintry 2.6°C (36.7°F). Siercza reports an average low temperature of -1.5°C (29.3°F) in December, a minor decrease from the day's highs.Humidity
The average relative humidity in December in Siercza is 83%.Rainfall
In Siercza, Poland, in December, during 6 rainfall days, 16mm (0.63") of precipitation is typically accumulated. In Siercza, during the entire year, the rain falls for 123.2 days and collects up to 368mm (14.49") of precipitation.Snowfall
Months with snowfall in Siercza are January through May, October through December. In December, it is snowing for 5.5 days. Throughout December, 35mm (1.38") of snow is accumulated. Throughout the year, in Siercza, Poland, there are 24.6 snowfall days, and 153mm (6.02") of snow is accumulated.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year in Siercza.On the first day of the month, sunrise is at 07:16 and sunset at 15:41. On the last day of December, in Siercza, sunrise is at 07:38 and sunset at 15:47 CET.
Sunshine
In Siercza, Poland, the average sunshine in December is 4.3h.UV index
December is the month with the lowest UV index in Siercza, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Siercza, Poland
- Average high temperature in December: 2.6°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (0.4°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in December
Siercza, Poland
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The months with the lowest atmospheric pressure are June and July (1014.5mbar).
Average wind speed in December
Siercza, Poland
- Average wind speed in December: 12.5km/h
The windiest month (with the highest average wind speed) is March (12.9km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in December
Siercza, Poland
- Average humidity in December: 83%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Siercza, Poland
- Average rainfall in December: 16mm
The wettest month (with the highest rainfall) is May (65mm).
The driest months (with the least rainfall) are January and March (14mm).
Average rainfall days in December
Siercza, Poland
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in December
Siercza, Poland
- Average snowfall in December: 35mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Siercza, Poland
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Siercza, Poland
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in December
Siercza, Poland
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in December
Siercza, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Siercza, Poland
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Siercza, Poland
- Average visibility in December: 9km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and February (8km).
