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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's chilly 8°C (46.4°F) to an icy 4.7°C (40.5°F). Höllviken maintains a near steady average temperature of 2.5°C (36.5°F) during the nights of December, demonstrating little drop from daytime highs.Humidity
In December, the average relative humidity is 85%.Rainfall
In December, the rain falls for 12.1 days. Throughout December, 19mm (0.75") of precipitation is accumulated. Throughout the year, there are 126.9 rainfall days, and 230mm (9.06") of precipitation is accumulated.Snowfall
Months with snowfall in Höllviken are January through April, November and December. In Höllviken, in December, during 5.3 snowfall days, 18mm (0.71") of snow is typically accumulated. Throughout the year, in Höllviken, there are 25.9 snowfall days, and 73mm (2.87") of snow is accumulated.Sea temperature
In Höllviken, in December, the average water temperature is 6°C (42.8°F).Note: It is advised against swimming in 6°C (42.8°F) when it drops below 10°C (50°F). Such temperatures can cause extreme cold shock, leading to hyperventilation.
Daylight
The month with the shortest days is December, with an average of 7h and 12min of daylight.On the first day of December, sunrise is at 08:12 and sunset at 15:42. On the last day of the month, sunrise is at 08:35 and sunset at 15:47 CET.
Sunshine
The month with the least sunshine in Höllviken is December, with an average of 2.8h of sunshine.UV index
In Höllviken, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests 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. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
How cold is December in Höllviken?
What is the average humidity in December in Höllviken?
How much does it rain in Höllviken in December?
How much does it snow in Höllviken in December?
What is the sea water temperature in December in Höllviken?
What is the month with the shortest days in Höllviken?
How many hours of daylight does Höllviken have in December?
When is the sunrise / sunset in December in Höllviken?
What is the month with the least sunshine in Höllviken?
How many hours of sunshine does Höllviken have in December?
What is the UV index reading in December in Höllviken?
Average temperature in December
Höllviken, Sweden
- Average high temperature in December: 4.7°C
The warmest months (with the highest average high temperature) are July and August (20.1°C).
The month with the lowest average high temperature is February (2.6°C).
- Average low temperature in December: 2.5°C
The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (0.2°C).
Average pressure in December
Höllviken, Sweden
- Average pressure in December: 1011.5mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1011.5mbar).
Average wind speed in December
Höllviken, Sweden
- Average wind speed in December: 24.5km/h
The windiest month (with the highest average wind speed) is December (24.5km/h).
The calmest month (with the lowest average wind speed) is June (17.3km/h).
Average humidity in December
Höllviken, Sweden
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are May, June, July and August (75%).
Average rainfall in December
Höllviken, Sweden
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is July (28mm).
The driest month (with the least rainfall) is April (8mm).
Average rainfall days in December
Höllviken, Sweden
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in December
Höllviken, Sweden
- Average snowfall in December: 18mm
The month with the highest snowfall is January (22mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Höllviken, Sweden
- Average snowfall days in December: 5.3 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Höllviken, Sweden
- Average sea temperature in December: 6°C
The best month for swimming (with the highest average sea temperature) is August (17.4°C).
The coldest months (with the lowest average sea temperature) are February and March (2.6°C).
Average daylight in December /
Average sunshine in December
Höllviken, Sweden
- Average daylight in December: 7h and 1min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).
Average sunshine days in December
Höllviken, Sweden
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is April (18.8 days).
The month with the least sunshine days is December (11.9 days).
Average UV index in December
Höllviken, Sweden
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Höllviken, Sweden
- Average cloud cover in December: 72
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Höllviken, 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).
Höllviken, Sweden
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