December weather forecastAlunda, Sweden

December

Weather in December

December, the first month of the winter in Alunda, is also a wintry month, with an average temperature varying between -1.2°C (29.8°F) and 1.7°C (35.1°F).

Temperature

A mild shift in the average high-temperature occurs in December, reducing from 4.9°C (40.8°F) in November to a still cold 1.7°C (35.1°F). Alunda's nights in December maintain a consistent average of -1.2°C (29.8°F), demonstrating a minimal differential from its daytime temperature.

Humidity

The average relative humidity in December in Alunda is 85%.

Rainfall

In December, in Alunda, Sweden, the rain falls for 8.2 days. Throughout December, 28mm (1.1") of precipitation is accumulated. In Alunda, during the entire year, the rain falls for 136.5 days and collects up to 345mm (13.58") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Alunda. In Alunda, in December, during 11.2 snowfall days, 70mm (2.76") of snow is typically accumulated. Throughout the year, there are 51.1 snowfall days, and 330mm (12.99") of snow is accumulated.

Sea temperature

In Alunda, the average seawater temperature in December is 3°C (37.4°F).
Note: During swimming activities, this is a serious life-threatening hazard. Rapid loss of control over breathing impairs cognitive abilities. A specialized swimsuit is essential to limit thermal wastage.

Daylight

December has the shortest days of the year in Alunda, with an average of 6h and 0min of daylight.
On the first day of the month, sunrise is at 08:23 and sunset at 14:49. On the last day of December, sunrise is at 08:50 and sunset at 14:51 CET.

Sunshine

With an average of 2.5h of sunshine, December has the least sunshine of the year.

UV index

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 2 during December translates into the following guidance:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

In Alunda, 1.7°C (35.1°F) is the average high-temperature and -1.2°C (29.8°F) is the average low-temperature during December.

In December, the average relative humidity in Alunda is 85%.

In Alunda, Sweden, in December, during 8.2 rainfall days, 28mm (1.1") of precipitation is typically accumulated.

In Alunda, Sweden, during December, snow falls for 11.2 days and regularly aggregates up to 70mm (2.76") of snow.

In December, the average sea temperature in Alunda is 3°C (37.4°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

December has the shortest days of the year in Alunda, with an average of 6h and 0min of daylight.

The average day length in December in Alunda is 6h and 1min.

On the first day of December, sunrise is at 08:23 and sunset at 14:49. On the last day of the month, sunrise is at 08:50 and sunset at 14:51 CET.

With an average of 2.5h of sunshine, December has the least sunshine of the year in Alunda.

In Alunda, Sweden, the average sunshine duration in December is 2.5h.

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.
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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Alunda, Sweden

  • Average high temperature in December: 1.7°C

The warmest month (with the highest average high temperature) is July (19.7°C).
The months with the lowest average high temperature are January and February (-0.1°C).

  • Average low temperature in December: -1.2°C

The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-2.9°C).

Average pressure in December
Alunda, Sweden

  • Average pressure in December: 1007.1mbar

The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.1mbar).

Average wind speed in December
Alunda, Sweden

  • Average wind speed in December: 20.3km/h

The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is July (14.2km/h).

Average humidity in December
Alunda, Sweden

  • Average humidity in December: 85%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and June (74%).

Average rainfall in December
Alunda, Sweden

  • Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is July (52mm).
The driest months (with the least rainfall) are February and April (16mm).

Average rainfall days in December
Alunda, Sweden

  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is August (16.5 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in December
Alunda, Sweden

  • Average snowfall in December: 70mm

The month with the highest snowfall is March (78mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Alunda, Sweden

  • Average snowfall days in December: 11.2 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in December
Alunda, Sweden

  • Average sea temperature in December: 3°C

The best month for swimming (with the highest average sea temperature) is August (18.2°C).
The coldest month (with the lowest average sea temperature) is February (0.1°C).

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

  • Average daylight in December: 6h and 0min

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

  • Average sunshine in December: 2h and 30min

The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).

Average sunshine days in December
Alunda, Sweden

  • Average sunshine days in December: 11.6 days

The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is December (11.6 days).

Average UV index in December
Alunda, Sweden

  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).

Average cloud cover in December
Alunda, Sweden

  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in December
Alunda, Sweden

  • Average visibility in December: 9km

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