Kalmar
Sweden
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Kalmar, Sweden

The first month of the winter, December, is also a wintry month in Kalmar, Sweden, with temperature in the range of an average high of 3.1°C (37.6°F) and an average low of -2.1°C (28.2°F).

Temperature

In December, the average high-temperature slightly decreases, from a chilly 6.9°C (44.4°F) in November, to a wintry 3.1°C (37.6°F). In Kalmar, the average low-temperature is -2.1°C (28.2°F).

Rainfall

In Kalmar, during 16 rainfall days, 41.2mm (1.6") of precipitation is typically accumulated. In Kalmar, during the entire year, the rain falls for 154 days and collects up to 483.3mm (19") of precipitation.

Sea temperature

In Kalmar, the average seawater temperature in December 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.

Daylight

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

Sunshine

January and December, with an average of 1h of sunshine, are months with the least sunshine in Kalmar.

UV index

Months with the lowest UV index in Kalmar, Sweden, are January, November and December, with an average maximum UV index of 0. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays for the average person.
The average daily UV index of 0 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in December in Kalmar?

In December, in Kalmar, Sweden, the average high-temperature is 3.1°C (37.6°F), and the average low-temperature is -2.1°C (28.2°F).

How many days does it rain in December in Kalmar?

In Kalmar, in December, during 16 rainfall days, 41.2mm (1.6") of precipitation is typically accumulated.

What is the water temperature in December in Kalmar?

In Kalmar, Sweden, the average seawater temperature in December is 4.8°C (40.6°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.

What is the month with the shortest days in Kalmar?

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

How many hours of daylight does Kalmar have in December?

The average length of the day in December in Kalmar is 6.9h.

What is the month with the least sunshine in Kalmar?

Months with the least sunshine in Kalmar are January and December, with an average of 1h of sunshine.

How long on average sun shines in December in Kalmar?

In Kalmar, Sweden, the average sunshine in December is 1h.

What is the month with the lowest UV index in Kalmar?

January, November and December, with an average maximum UV index of 0, are months with the lowest UV index.

What is the UV index reading in December in Kalmar?

In Kalmar, the average daily maximum UV index in December is 0. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in December - Kalmar, Sweden
  • Average high temperature in December: 3.1°C

The warmest month (with the highest average high temperature) is July (22.6°C).
The month with the lowest average high temperature is January (1.8°C).

  • Average low temperature in December: -2.1°C

The month with the highest average low temperature is July (12.5°C).
The coldest month (with the lowest average low temperature) is February (-3.8°C).

Average rainfall in December - Kalmar, Sweden
  • Average rainfall in December: 41.2mm

The wettest month (with the highest rainfall) is July (59.5mm).
The driest month (with the lowest rainfall) is February (28.9mm).

Average rainfall days in December - Kalmar, Sweden
  • Average rainfall days in December: 16 days

The month with the highest number of rainy days is January (17 days).
The month with the lowest number of rainy days is June (9 days).

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).

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 shortest days is December (Average daylight: 6.9h).

  • Average sunshine in December: 1h

The month with most sunshine is June (Average sunshine: 9h).
Months with least sunshine are January and December (Average sunshine: 1).

Average UV index in December - Kalmar, Sweden
  • Average UV index in December: 0

The month with the highest UV index is June (UV index 6).
Months with the lowest UV index are January, November and December (UV index 0).