December weather forecastBjörkö, Sweden

December

Weather in December

December, the first month of the winter in Björkö, is also a wintry month, with an average temperature fluctuating between 2.2°C (36°F) and 4.5°C (40.1°F).

Temperature

The shift into December records an average high-temperature of a wintry 4.5°C (40.1°F), subtly varied from November's 7.4°C (45.3°F). Björkö upholds a consistent average temperature of 2.2°C (36°F) throughout the nights of December.

Humidity

The average relative humidity in December in Björkö, Sweden, is 83%.

Rainfall

In Björkö, Sweden, in December, it is raining for 11.5 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, in Björkö, there are 123.7 rainfall days, and 186mm (7.32") of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Björkö, in December, snow falls for 3 days, with typically accumulated 6mm (0.24") of snow. Throughout the year, in Björkö, there are 19 snowfall days, and 32mm (1.26") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 6h and 42min of daylight.
On the first day of December, sunrise is at 08:31 and sunset at 15:32. On the last day of the month, sunrise is at 08:56 and sunset at 15:36 CET.

Sunshine

In Björkö, the average sunshine in December is 3.9h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 2 during December leads to these instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

Björkö in December has an average high-temperature of 4.5°C (40.1°F) and an average low-temperature of 2.2°C (36°F).

In December, the average relative humidity in Björkö is 83%.

In Björkö, in December, it is raining for 11.5 days, with typically 17mm (0.67") of accumulated precipitation.

In Björkö, during December, snow falls for 3 days and regularly aggregates up to 6mm (0.24") of snow.

The month with the shortest days in Björkö, Sweden, is December, with an average of 6h and 42min of daylight.

In December, the average day length in Björkö, Sweden, is 6h and 40min.

In December, on the first day of the month, sunrise is at 08:31 and sunset at 15:32. On the last day of the month, in Björkö, Sweden, sunrise is at 08:56 and sunset at 15:36 CET.

The average sunshine duration in December in Björkö is 3.9h.

The months with the lowest UV index in Björkö, Sweden, are January through March, October through December, with an average maximum UV index of 2.

In December, the average daily maximum UV index in Björkö, Sweden, is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Björkö, Sweden

  • Average high temperature in December: 4.5°C

The warmest month (with the highest average high temperature) is July (18.5°C).
The month with the lowest average high temperature is February (1.8°C).

  • Average low temperature in December: 2.2°C

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (-0.3°C).

Average pressure in December
Björkö, Sweden

  • Average pressure in December: 1008.8mbar

The month with the highest atmospheric pressure is April (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).

Average wind speed in December
Björkö, Sweden

  • Average wind speed in December: 27km/h

The windiest month (with the highest average wind speed) is December (27km/h).
The calmest month (with the lowest average wind speed) is June (18.4km/h).

Average humidity in December
Björkö, Sweden

  • Average humidity in December: 83%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is May (75%).

Average rainfall in December
Björkö, Sweden

  • Average rainfall in December: 17mm

The wettest month (with the highest rainfall) is August (21mm).
The driest month (with the least rainfall) is April (8mm).

Average rainfall days in December
Björkö, Sweden

  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is August (13.6 days).
The month with the least rainy days is February (7.7 days).

Average snowfall in December
Björkö, Sweden

  • Average snowfall in December: 6mm

The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Björkö, Sweden

  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Björkö, Sweden

  • Average daylight in December: 6h and 42min

The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 42min).

  • Average sunshine in December: 3h and 54min

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are January, February and November (Average sunshine: 3h and 42min).

Average sunshine days in December
Björkö, Sweden

  • Average sunshine days in December: 13.6 days

The month with the most sunshine days is March (19.8 days).
The month with the least sunshine days is August (13.3 days).

Average UV index in December
Björkö, 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, February, March, October, November and December (UV index 2).

Average cloud cover in December
Björkö, Sweden

  • Average cloud cover in December: 61

The months with the most cloud cover are February and November (Cloud cover 62).
The month with the least cloud cover is June (Cloud cover 36).

Average visibility in December
Björkö, Sweden

  • Average visibility in December: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).