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
With the onset of December, the average high-temperature subtly recedes from November's wintry 4.7°C (40.5°F) to a still cold 1°C (33.8°F). Flen registers a steady nighttime temperature averaging a freezing cold -2.9°C (26.8°F) throughout December.Humidity
January, February, November and December, with an average relative humidity of 90%, are the most humid months.Rainfall
In Flen, Sweden, in December, during 8.6 rainfall days, 29mm (1.14") of precipitation is typically accumulated. In Flen, Sweden, during the entire year, the rain falls for 140.4 days and collects up to 387mm (15.24") of precipitation.Snowfall
January through May, October through December are months with snowfall in Flen. In Flen, in December, snow falls for 9.6 days, with typically accumulated 90mm (3.54") of snow. In Flen, during the entire year, snow falls for 49.3 days and aggregates up to 420mm (16.54") of snow.Daylight
December has the shortest days of the year in Flen, with an average of 6h and 18min of daylight.On the first day of the month, sunrise is at 08:21 and sunset at 15:03. On the last day of December, sunrise is at 08:47 and sunset at 15:06 CET.
Sunshine
With an average of 2.7h of sunshine, December has the least sunshine of the year.UV index
In Flen, Sweden, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the UV index of 2 transforms into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
How cold is it in Flen in December?
What are the most humid months in Flen?
What is the average humidity in December in Flen?
How many days does it rain in December in Flen?
How much does it snow in Flen in December?
What is the month with the shortest days in Flen?
What is the average length of the day in December in Flen?
When are sunrise and sunset in December in Flen?
What is the month with the least sunshine in Flen?
How many hours of sunshine does Flen have in December?
What is the UV index intensity in December in Flen?
Average temperature in December
Flen, Sweden
- Average high temperature in December: 1°C
The warmest month (with the highest average high temperature) is July (22.4°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in December: -2.9°C
The month with the highest average low temperature is July (12.4°C).
The coldest months (with the lowest average low temperature) are January and February (-4.6°C).
Average pressure in December
Flen, Sweden
- Average pressure in December: 1008.1mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in December
Flen, Sweden
- Average wind speed in December: 14km/h
The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in December
Flen, Sweden
- Average humidity in December: 90%
The months with the highest relative humidity are January, February, November and December (90%).
The months with the lowest relative humidity are May and June (70%).
Average rainfall in December
Flen, Sweden
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Flen, Sweden
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Flen, Sweden
- Average snowfall in December: 90mm
The month with the highest snowfall is February (112mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Flen, Sweden
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Flen, Sweden
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in December
Flen, Sweden
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Flen, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Flen, Sweden
- Average cloud cover in December: 67
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 42).
Average visibility in December
Flen, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January and February (7km).
Flen, Sweden
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