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 sea temperature 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
Rolfs's weather subtly changes with the onset of December, barely falling from an icy 0.6°C (33.1°F) in November to a freezing cold -2.7°C (27.1°F). December nights cool to an average low-temperature of -6.5°C (20.3°F), a marginal decrease from its daytime equivalent.Humidity
The average relative humidity in December in Rolfs is 91%.Rainfall
December is the month with the most rainfall in Rolfs, Sweden. Rain falls for 6 days and accumulates 51mm (2.01") of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Rolfs, in December, during 17.8 snowfall days, 229mm (9.02") of snow is typically accumulated. In Rolfs, during the entire year, snow falls for 96.5 days and aggregates up to 1080mm (42.52") of snow.Sea temperature
In Rolfs, Sweden, the average seawater temperature in December is 2.3°C (36.1°F).Note: While swimming, this is identified as life-endangering and very dangerous. The water's freezing temperatures cause intense discomfort and induce rapid hyperventilation. A specialized swimsuit is mandatory to mitigate thermal damage.
Daylight
December has the shortest days of the year, with an average of 3h and 18min of daylight.On the first day of December in Rolfs, sunrise is at 09:12 and sunset at 13:20. On the last day of the month, sunrise is at 09:52 and sunset at 13:09 CET.
Sunshine
December has the least sunshine of the year, with an average of 1.3h of sunshine.UV index
The months with the lowest UV index are January, March and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, the UV index of 1 transforms into the following advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
How cold is December in Rolfs?
What is the average humidity in December in Rolfs?
What is the wettest month in Rolfs?
How many days does it rain in December in Rolfs?
How many days does it snow in December in Rolfs?
What is the water temperature in December in Rolfs?
What is the month with the shortest days in Rolfs?
What is the average length of the day in December in Rolfs?
When is the sunrise / sunset in December in Rolfs?
What is the month with the least sunshine in Rolfs?
How many hours of sunshine does Rolfs have in December?
When is the lowest UV index in Rolfs?
What is the UV index intensity in December in Rolfs?
Average temperature in December
Rolfs, Sweden
- Average high temperature in December: -2.7°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in December: -6.5°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in December
Rolfs, Sweden
- Average pressure in December: 1004.8mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in December
Rolfs, Sweden
- Average wind speed in December: 15.9km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).
Average humidity in December
Rolfs, Sweden
- Average humidity in December: 91%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is June (68%).
Average rainfall in December
Rolfs, Sweden
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Rolfs, Sweden
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Rolfs, Sweden
- Average snowfall in December: 229mm
The month with the highest snowfall is March (231mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Rolfs, Sweden
- Average snowfall days in December: 17.8 days
The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in December
Rolfs, Sweden
- Average sea temperature in December: 2.3°C
The best month for swimming (with the highest average sea temperature) is July (16.8°C).
The coldest month (with the lowest average sea temperature) is February (-0.8°C).
Average daylight in December /
Average sunshine in December
Rolfs, Sweden
- Average daylight in December: 3h and 2min
The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in December: 1h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in December
Rolfs, Sweden
- Average sunshine days in December: 10.6 days
The months with the most sunshine days are June and August (16.3 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in December
Rolfs, Sweden
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in December
Rolfs, Sweden
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Rolfs, Sweden
- Average visibility in December: 8km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March and April (7km).
Rolfs, Sweden
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