December weather forecast
Kalmar, Sweden

Weather in December

December, the first month of the winter, in Kalmar, is also a wintry month, with average temperature fluctuating between 3.3°C (37.9°F) and 0.5°C (32.9°F).

Temperature

In Kalmar, the average high-temperature slightly decreases, from a frosty 6.9°C (44.4°F) in November, to a cold 3.3°C (37.9°F). In Kalmar, the average low-temperature is 0.5°C (32.9°F).

Humidity

Months with the highest humidity are January, February, November and December, with an average relative humidity of 86%.

Rainfall

In Kalmar, it is raining for 10.9 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 127.2 rainfall days, and 299mm (11.77") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Kalmar, snow falls for 7.7 days, with typically accumulated 49mm (1.93") of snow. In Kalmar, during the entire year, snow falls for 40.5 days, and aggregates up to 250mm (9.84") of snow.

Sea temperature

In Kalmar, the average seawater temperature is 4.8°C (40.6°F).
Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

The month with the shortest days in Kalmar is December, with an average of 6.9h of daylight.

Sunshine

In Kalmar, the average sunshine is 3.5h.

UV index

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What are the most humid months in Kalmar?

January, February, November and December, with an average relative humidity of 86%, are most humid months.

What is the average humidity in December in Kalmar?

The average relative humidity in December in Kalmar, Sweden, is 86%.

How many days does it rain in December in Kalmar?

In December, the rain falls for 10.9 days. Throughout December, 24mm (0.94") of precipitation is accumulated.

How many days does it snow in December in Kalmar?

In Kalmar, Sweden, during December, snow falls for 7.7 days and regularly aggregates up to 49mm (1.93") of snow.

What is the sea temperature in December in Kalmar?

In Kalmar, Sweden, in December, the average water temperature is 4.8°C (40.6°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the month with the shortest days in Kalmar?

With an average of 6.9h of daylight, December has the shortest days of the year in Kalmar, Sweden.

How many hours of daylight does Kalmar have in December?

In December, the average length of the day in Kalmar, Sweden, is 6.9h.

How many hours of sunshine does Kalmar have in December?

In Kalmar, the average sunshine in December is 3.5h.

What is the UV index reading in December in Kalmar?

In Kalmar, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays.

Average temperature in December
Kalmar, Sweden

Average temperature in December - Kalmar, Sweden
  • Average high temperature in December: 3.3°C

The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (1.6°C).

  • Average low temperature in December: 0.5°C

The month with the highest average low temperature is July (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).

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Average pressure in December
Kalmar, Sweden

Average pressure in December - Kalmar, Sweden
  • Average pressure in December: 1010.2mbar

Months with the highest atmospheric pressure are April and May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010.2mbar).

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Average wind speed in December
Kalmar, Sweden

Average wind speed in December - Kalmar, Sweden
  • Average wind speed in December: 18.8km/h

The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is May (14.1km/h).

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Average humidity in December
Kalmar, Sweden

Average humidity in December - Kalmar, Sweden
  • Average humidity in December: 86%

Months with the highest relative humidity are January, February, November and December (86%).
Months with the lowest relative humidity are April and May (71%).

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Average rainfall in December
Kalmar, Sweden

Average rainfall in December - Kalmar, Sweden
  • Average rainfall in December: 24mm

The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (10mm).

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Average rainfall days in December
Kalmar, Sweden

Average rainfall days in December - Kalmar, Sweden
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is February (6.9 days).

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Average snowfall in December
Kalmar, Sweden

Average snowfall in December - Kalmar, Sweden
  • Average snowfall in December: 49mm

The month with the highest snowfall is February (84mm).
Months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in December
Kalmar, Sweden

Average snowfall days in December - Kalmar, Sweden
  • Average snowfall days in December: 7.7 days

The month with the highest number of snowfall days is January (12.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in December
Kalmar, Sweden

Average sea temperature in December - Kalmar, Sweden
  • Average sea temperature in December: 4.8°C

The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is March (1.9°C).

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

Average daylight in December / Average sunshine in December - Kalmar, Sweden
  • Average daylight in December: 6.9h

The month with the longest days is June (Average daylight: 17.7h).
The month with the shortest days is December (Average daylight: 6.9h).

  • Average sunshine in December: 3.5h

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 3.2h).

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Average sunshine days in December
Kalmar, Sweden

Average sunshine days in December - Kalmar, Sweden
  • Average sunshine days in December: 12.5 days

The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is February (11.1 days).

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Average UV index in December
Kalmar, Sweden

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

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

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Average cloud cover in December
Kalmar, Sweden

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

Months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in December
Kalmar, Sweden

Average visibility in December - Kalmar, Sweden
  • Average visibility in December: 9km

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

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