December weather forecastIwiny, Poland
December
Weather in December
December, the first month of the winter in Iwiny, is still a cold month, with an average temperature fluctuating between 3.6°C (38.5°F) and -0.5°C (31.1°F).Temperature
Iwiny's December weather shows a moderate shift in high-temperatures, falling from November's frosty 8.9°C (48°F) to a cold 3.6°C (38.5°F). A steady low-temperature average of -0.5°C (31.1°F) is logged during December, reflecting a modest dip from daytime readings.Humidity
In Iwiny, Poland, the average relative humidity in December is 84%.Rainfall
In Iwiny, in December, it is raining for 10 days, with typically 23mm (0.91") of accumulated precipitation. Throughout the year, there are 138.8 rainfall days, and 326mm (12.83") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Iwiny, in December, during 6.7 snowfall days, 44mm (1.73") of snow is typically accumulated. In Iwiny, during the entire year, snow falls for 33.1 days and aggregates up to 195mm (7.68") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 0min of daylight.On the first day of the month, sunrise is at 07:33 and sunset at 15:48. On the last day of December, sunrise is at 07:54 and sunset at 15:54 CET.
Sunshine
In December, the average sunshine is 3.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Iwiny, Poland
- Average high temperature in December: 3.6°C
The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (1.7°C).
- Average low temperature in December: -0.5°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (-2.7°C).
Average pressure in December
Iwiny, Poland
- Average pressure in December: 1017.3mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1014.5mbar).
Average wind speed in December
Iwiny, 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 (10.3km/h).
Average humidity in December
Iwiny, Poland
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (64%).
Average rainfall in December
Iwiny, Poland
- Average rainfall in December: 23mm
The wettest months (with the highest rainfall) are May and June (41mm).
The driest month (with the least rainfall) is February (17mm).
Average rainfall days in December
Iwiny, Poland
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in December
Iwiny, Poland
- Average snowfall in December: 44mm
The month with the highest snowfall is January (80mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Iwiny, Poland
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Iwiny, Poland
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Iwiny, Poland
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Iwiny, Poland
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Iwiny, Poland
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Iwiny, Poland
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).
