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 implies a soft temperature shift, with average high-temperatures reducing from November's 4.5°C (40.1°F) to a still icy 0.9°C (33.6°F). Björneborg records a slight downturn to an average a freezing cold -2.3°C (27.9°F) during the nights of December.Humidity
In December, the average relative humidity in Björneborg is 89%.Rainfall
In Björneborg, during December, the rain falls for 10.5 days and regularly aggregates up to 41mm (1.61") of precipitation. In Björneborg, Sweden, during the entire year, the rain falls for 150 days and collects up to 473mm (18.62") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, in Björneborg, it is snowing for 11 days. Throughout December, 100mm (3.94") of snow is accumulated. Throughout the year, in Björneborg, there are 57.6 snowfall days, and 582mm (22.91") of snow is accumulated.Daylight
With an average of 6h and 18min of daylight, December has the shortest days of the year in Björneborg.On the first day of the month, sunrise is at 08:32 and sunset at 15:11. On the last day of December, in Björneborg, sunrise is at 08:58 and sunset at 15:13 CET.
Sunshine
In December, the average sunshine in Björneborg is 3.2h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. 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 Björneborg?
What is the average humidity in December in Björneborg?
How much does it rain in Björneborg in December?
How many days does it snow in December in Björneborg?
What is the month with the shortest days in Björneborg?
How many hours of daylight does Björneborg have in December?
What time are sunrise and sunset in December in Björneborg?
How long on average sun shines in December in Björneborg?
What are the months with the lowest UV index in Björneborg?
How high is the UV index in December in Björneborg?
Average temperature in December
Björneborg, Sweden
- Average high temperature in December: 0.9°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in December: -2.3°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 (-4.3°C).
Average pressure in December
Björneborg, Sweden
- Average pressure in December: 1008.1mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in December
Björneborg, Sweden
- Average wind speed in December: 14.1km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).
Average humidity in December
Björneborg, Sweden
- Average humidity in December: 89%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (69%).
Average rainfall in December
Björneborg, Sweden
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in December
Björneborg, Sweden
- Average rainfall days in December: 10.5 days
The months with the highest number of rainy days are July and August (16.7 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in December
Björneborg, Sweden
- Average snowfall in December: 100mm
The month with the highest snowfall is January (148mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Björneborg, Sweden
- Average snowfall days in December: 11 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Björneborg, Sweden
- Average daylight in December: 6h and 2min
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 18min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in December
Björneborg, Sweden
- Average sunshine days in December: 12.1 days
The month with the most sunshine days is April (15.2 days).
The month with the least sunshine days is November (10.2 days).
Average UV index in December
Björneborg, Sweden
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Björneborg, Sweden
- Average cloud cover in December: 68
The month with the most cloud cover is February (Cloud cover 71).
The month with the least cloud cover is June (Cloud cover 42).
Average visibility in December
Björneborg, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
Björneborg, Sweden
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