December weather forecast and climate
Merlänna, Sweden

The first month of the winter, December, is still a cold month in Merlänna, Sweden, with average temperature fluctuating between 0.6°C (33.1°F) and -2.8°C (27°F).

Temperature

In December, the average high-temperature marginally drops, from 4.7°C (40.5°F) in November, to a still wintry 0.6°C (33.1°F). The average low-temperature, is -2.8°C (27°F).

Humidity

Months with the highest humidity are January, February and December, with an average relative humidity of 89%.

Rainfall

In Merlänna, in December, it is raining for 10.5 days, with typically 36mm (1.42") of accumulated precipitation. Throughout the year, there are 148.3 rainfall days, and 400mm (15.75") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, in Merlänna, it is snowing for 12 days. Throughout December, 97mm (3.82") of snow is accumulated. Throughout the year, in Merlänna, there are 58.2 snowfall days, and 426mm (16.77") of snow is accumulated.

Daylight

With an average of 6.2h of daylight, December has the shortest days of the year.

Sunshine

December has the least sunshine of the year in Merlänna, with an average of 2.5h of sunshine.

UV index

In Merlänna, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Merlänna?

The average high-temperature, in December, in Merlänna, is 0.6°C (33.1°F), while the average low-temperature is -2.8°C (27°F).

What are the most humid months in Merlänna?

January, February and December, with an average relative humidity of 89%, are most humid months in Merlänna.

What is the average humidity in December in Merlänna?

In December, the average relative humidity in Merlänna is 89%.

How much does it rain in Merlänna in December?

In Merlänna, during December, the rain falls for 10.5 days and regularly aggregates up to 36mm (1.42") of precipitation.

How much does it snow in Merlänna in December?

In Merlänna, Sweden, in December, during 12 snowfall days, 97mm (3.82") of snow is typically accumulated.

What is the month with the shortest days in Merlänna?

With an average of 6.2h of daylight, December has the shortest days of the year.

What is the average length of the day in December in Merlänna?

The average length of the day in December in Merlänna is 6.2h.

What is the month with the least sunshine in Merlänna?

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

How many hours of sunshine does Merlänna have in December?

In Merlänna, the average sunshine in December is 2.5h.

What is the UV index reading in December in Merlänna?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV rays.
Average temperature in December - Merlänna, Sweden
  • Average high temperature in December: 0.6°C

The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (-0.9°C).

  • Average low temperature in December: -2.8°C

The month with the highest average low temperature is July (12.7°C).
The coldest months (with the lowest average low temperature) are January and February (-4.7°C).

Average pressure in December - Merlänna, Sweden
  • Average pressure in December: 1007.9mbar

The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).

Average wind speed in December - Merlänna, Sweden
  • Average wind speed in December: 15.9km/h

The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).

Average humidity in December - Merlänna, Sweden
  • Average humidity in December: 89%

Months with the highest relative humidity are January, February and December (89%).
The month with the lowest relative humidity is May (70%).

Average rainfall in December - Merlänna, Sweden
  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in December - Merlänna, Sweden
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (6.7 days).

Average snowfall in December - Merlänna, Sweden
  • Average snowfall in December: 97mm

The month with the highest snowfall is February (102mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Merlänna, Sweden
  • Average snowfall days in December: 12 days

The month with the highest number of snowfall days is January (14.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Merlänna, Sweden
  • Average daylight in December: 6.2h

The month with the longest days is June (Average daylight: 18.5h).
The month with the shortest days is December (Average daylight: 6.2h).

  • Average sunshine in December: 2.5h

The month with the most sunshine is June (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 2.5h).

Average sunshine days in December - Merlänna, Sweden
  • Average sunshine days in December: 10.5 days

Months with the most sunshine days are September and October (14.2 days).
The month with the least sunshine days is December (10.5 days).

Average UV index in December - Merlänna, Sweden
  • Average UV index in December: 2

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

Average cloud cover in December - Merlänna, Sweden
  • Average cloud cover in December: 65

The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 41).

Average visibility in December - Merlänna, Sweden
  • Average visibility in December: 8km

Months with the highest visibility are April, May, June, July, August, September and October (9km).
Months with the lowest visibility are January, February, March, November and December (8km).