December weather forecastSiemienice, Poland
December
Weather in December
December, the first month of the winter in Siemienice, is also an icy month, with an average temperature ranging between max 2.5°C (36.5°F) and min -0.9°C (30.4°F).Temperature
As December begins, there is a minor decrease in the average high-temperature, softly falling from a frosty 7.4°C (45.3°F) in November to a wintry 2.5°C (36.5°F). Siemienice reports an average low-temperature of -0.9°C (30.4°F) during the subtly cooler December nights.Humidity
In December, the average relative humidity is 87%.Rainfall
In Siemienice, in December, during 11.3 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 147.5 rainfall days, and 381mm (15") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Siemienice, during December, snow falls for 8.5 days and regularly aggregates up to 45mm (1.77") of snow. In Siemienice, during the entire year, snow falls for 38.2 days and aggregates up to 241mm (9.49") of snow.Daylight
With an average of 7h and 48min of daylight, December has the shortest days of the year in Siemienice.On the first day of the month, sunrise is at 07:29 and sunset at 15:33. On the last day of December, in Siemienice, sunrise is at 07:50 and sunset at 15:39 CET.
Sunshine
The average sunshine in December in Siemienice is 3.4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Siemienice, Poland
- Average high temperature in December: 2.5°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 (0.2°C).
- Average low temperature in December: -0.9°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).
Average pressure in December
Siemienice, Poland
- Average pressure in December: 1016.1mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.7mbar).
Average wind speed in December
Siemienice, Poland
- Average wind speed in December: 15.7km/h
The windiest month (with the highest average wind speed) is December (15.7km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Siemienice, 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 (66%).
Average rainfall in December
Siemienice, Poland
- Average rainfall in December: 27mm
The wettest months (with the highest rainfall) are May and June (50mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Siemienice, Poland
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Siemienice, Poland
- Average snowfall in December: 45mm
The month with the highest snowfall is January (83mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Siemienice, Poland
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Siemienice, 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 24min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Siemienice, Poland
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in December
Siemienice, Poland
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Siemienice, Poland
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Siemienice, 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, February, November and December (8km).
