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
December implies a soft temperature shift, with average high-temperatures reducing from November's wintry 5.7°C (42.3°F) to a still cold 2.3°C (36.1°F). Mörtnäs maintains an average low-temperature of -0.4°C (31.3°F) throughout December's nights.Humidity
January, February, November and December, with an average relative humidity of 85%, are the most humid months.Rainfall
In Mörtnäs, during December, the rain falls for 9.1 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, there are 125.3 rainfall days, and 261mm (10.28") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 8.8 days and typically aggregates up to 41mm (1.61") of snow.Sea temperature
In December, the average sea temperature is 4.8°C (40.6°F).Note: In swimming engagements, this poses immediate life-threatening risks. The loss of breath control is instantaneous, thereby hindering clear thought. A specialized swimsuit is mandatory to limit thermal dissipation.
Daylight
December has the shortest days of the year in Mörtnäs, with an average of 6h and 12min of daylight.On the first day of the month, sunrise is at 08:16 and sunset at 14:54. On the last day of December, in Mörtnäs, Sweden, sunrise is at 08:42 and sunset at 14:56 CET.
Sunshine
The month with the least sunshine is December, with an average of 2.5h of sunshine.UV index
In December, the average daily maximum UV index in Mörtnäs, Sweden, is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold is December in Mörtnäs?
What is the most humid month in Mörtnäs?
What is the average humidity in December in Mörtnäs?
How much does it rain in Mörtnäs in December?
When does it snow the most in Mörtnäs?
How many days does it snow in December in Mörtnäs?
What is the water temperature in December in Mörtnäs?
What is the month with the shortest days in Mörtnäs?
What is the average length of the day in December in Mörtnäs?
What time are sunrise and sunset in December in Mörtnäs?
What is the month with the least sunshine in Mörtnäs?
How many hours of sunshine does Mörtnäs have in December?
How high is the UV index in December in Mörtnäs?
Average temperature in December
Mörtnäs, Sweden
- Average high temperature in December: 2.3°C
The warmest month (with the highest average high temperature) is July (18.9°C).
The months with the lowest average high temperature are January and February (0.4°C).
- Average low temperature in December: -0.4°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 (-2.2°C).
Average pressure in December
Mörtnäs, Sweden
- Average pressure in December: 1007.8mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in December
Mörtnäs, Sweden
- Average wind speed in December: 24.7km/h
The windiest month (with the highest average wind speed) is December (24.7km/h).
The calmest month (with the lowest average wind speed) is July (15.8km/h).
Average humidity in December
Mörtnäs, Sweden
- Average humidity in December: 85%
The months with the highest relative humidity are January, February, November and December (85%).
The months with the lowest relative humidity are April, May and June (77%).
Average rainfall in December
Mörtnäs, Sweden
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in December
Mörtnäs, Sweden
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is August (13.9 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in December
Mörtnäs, Sweden
- Average snowfall in December: 41mm
The month with the highest snowfall is December (41mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Mörtnäs, Sweden
- Average snowfall days in December: 8.8 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Mörtnäs, Sweden
- Average sea temperature in December: 4.8°C
The best month for swimming (with the highest average sea temperature) is August (18.8°C).
The coldest month (with the lowest average sea temperature) is February (1°C).
Average daylight in December /
Average sunshine in December
Mörtnäs, Sweden
- Average daylight in December: 6h and 1min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in December: 2h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Mörtnäs, Sweden
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is May (17.9 days).
The month with the least sunshine days is December (11.7 days).
Average UV index in December
Mörtnäs, Sweden
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Mörtnäs, Sweden
- Average cloud cover in December: 65
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Mörtnäs, Sweden
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
Mörtnäs, Sweden
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