Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December heralds a minor drop in average high-temperature, sliding from November's chilly 7°C (44.6°F) to a wintry 2.8°C (37°F). Rumia maintains a consistent average nighttime low-temperature of 0.3°C (32.5°F) throughout December.Humidity
The months with the highest humidity in Rumia are January, February and December, with an average relative humidity of 86%.Rainfall
In Rumia, in December, it is raining for 12.9 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, in Rumia, Poland, there are 150.7 rainfall days, and 391mm (15.39") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Rumia, Poland, in December, snow falls for 7.5 days, with typically accumulated 57mm (2.24") of snow. In Rumia, during the entire year, snow falls for 37.5 days and aggregates up to 235mm (9.25") of snow.Daylight
With an average of 7h and 24min of daylight, December has the shortest days of the year in Rumia, Poland.On the first day of December, sunrise is at 07:45 and sunset at 15:25. On the last day of the month, sunrise is at 08:08 and sunset at 15:30 CET.
Sunshine
The average sunshine in December is 3.1h.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 exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 1 in December translates into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. To cut down UV radiation exposure by about half, sport a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Rumia in December?
What are the most humid months in Rumia?
What is the average humidity in December in Rumia?
How much does it rain in Rumia in December?
How much does it snow in Rumia in December?
What is the month with the shortest days in Rumia?
What is the average length of the day in December in Rumia?
When are sunrise and sunset in December in Rumia?
How long on average sun shines in December in Rumia?
What is the month with the lowest UV index in Rumia?
What is the UV index intensity in December in Rumia?
Average temperature in December
Rumia, Poland
- Average high temperature in December: 2.8°C
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in December: 0.3°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-1.7°C).
Average pressure in December
Rumia, Poland
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is October (1016.5mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).
Average wind speed in December
Rumia, Poland
- Average wind speed in December: 19.2km/h
The windiest month (with the highest average wind speed) is December (19.2km/h).
The calmest months (with the lowest average wind speed) are June and August (13.5km/h).
Average humidity in December
Rumia, Poland
- Average humidity in December: 86%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Rumia, Poland
- Average rainfall in December: 35mm
The wettest month (with the highest rainfall) is July (56mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in December
Rumia, Poland
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is July (17.5 days).
The months with the least rainy days are January and February (8.2 days).
Average snowfall in December
Rumia, Poland
- Average snowfall in December: 57mm
The month with the highest snowfall is January (64mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Rumia, Poland
- Average snowfall days in December: 7.5 days
The months with the highest number of snowfall days are January and February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rumia, Poland
- Average daylight in December: 7h and 2min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Rumia, Poland
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is December (10.8 days).
Average UV index in December
Rumia, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Rumia, Poland
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Rumia, Poland
- Average visibility in December: 9km
The months with the highest visibility are April, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, May, November and December (9km).
Rumia, Poland
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