December weather forecastSyry, Poland
December
Weather in December
The first month of the winter, December, is also an icy month in Syry, Poland, with an average temperature varying between -1.7°C (28.9°F) and 1.6°C (34.9°F).Temperature
A moderate decline in the average high-temperature is seen during December, decreasing from a chilly 6.9°C (44.4°F) in November to a wintry 1.6°C (34.9°F). Night temperatures during December in Syry experience a slight downturn, averaging a subzero cold -1.7°C (28.9°F).Humidity
In December, the average relative humidity in Syry is 88%.Rainfall
In December, the rain falls for 11.1 days. Throughout December, 41mm (1.61") of precipitation is accumulated. In Syry, during the entire year, the rain falls for 165.9 days and collects up to 534mm (21.02") of precipitation.Snowfall
January through April, October through December are months with snowfall. In Syry, during December, snow falls for 13.8 days and regularly aggregates up to 123mm (4.84") of snow. In Syry, during the entire year, snow falls for 63.3 days and aggregates up to 554mm (21.81") 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 the month, sunrise is at 07:13 and sunset at 15:25. On the last day of December, sunrise is at 07:35 and sunset at 15:31 CET.
Sunshine
The average sunshine in December in Syry is 3h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents 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 face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Syry, Poland
- Average high temperature in December: 1.6°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in December: -1.7°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).
Average pressure in December
Syry, Poland
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is October (1018.8mbar).
The month with the lowest atmospheric pressure is July (1013.8mbar).
Average wind speed in December
Syry, Poland
- Average wind speed in December: 13.4km/h
The windiest month (with the highest average wind speed) is December (13.4km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in December
Syry, Poland
- Average humidity in December: 88%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Syry, Poland
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is May (75mm).
The driest month (with the least rainfall) is November (26mm).
Average rainfall days in December
Syry, Poland
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in December
Syry, Poland
- Average snowfall in December: 123mm
The month with the highest snowfall is January (177mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Syry, Poland
- Average snowfall days in December: 13.8 days
The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Syry, Poland
- Average daylight in December: 7h and 54min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Syry, Poland
- Average sunshine days in December: 7.7 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is July (7.6 days).
Average UV index in December
Syry, Poland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Syry, Poland
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Syry, Poland
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).
