April weather forecast and climate
Kalmar, Sweden

Weather in April

April in Kalmar, Sweden, is a chilly spring month, with average temperature ranging between min 3.3°C (37.9°F) and max 9.8°C (49.6°F).

Temperature

In Kalmar, the average high-temperature slightly increases, from a cold 4.9°C (40.8°F) in March, to a chilly 9.8°C (49.6°F). In April, the average low-temperature is 3.3°C (37.9°F).

Humidity

April and May, with an average relative humidity of 71%, are the least humid months.

Rainfall

The month with the least rainfall in Kalmar, Sweden, is April when the rain falls for 8.1 days and typically collects 10mm (0.39") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Kalmar. In Kalmar, during 1.5 snowfall days, 8mm (0.31") of snow is typically accumulated. 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 water temperature is 3.8°C (38.8°F).
Note: 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.

Daylight

The average length of the day in April is 14.3h.

Sunshine

The average sunshine is 9.3h.

UV index

In Kalmar, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 3 in April transform into the following instructions:
Take precautions - Protection against sun damage is advised. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What are the least humid months in Kalmar?

Months with the lowest humidity in Kalmar, Sweden, are April and May, with an average relative humidity of 71%.

What is the average humidity in April in Kalmar?

In April, the average relative humidity is 71%.

What is the driest month in Kalmar?

April is the month with the least rainfall. Rain falls for 8.1 days and accumulates 10mm (0.39") of precipitation.

How much does it rain in Kalmar in April?

In Kalmar, Sweden, in April, during 8.1 rainfall days, 10mm (0.39") of precipitation is typically accumulated.

How much does it snow in Kalmar in April?

In Kalmar, in April, snow falls for 1.5 days, with typically accumulated 8mm (0.31") of snow.

What is the sea temperature in April in Kalmar?

In Kalmar, the average seawater temperature in April is 3.8°C (38.8°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the average length of the day in April in Kalmar?

In April, the average length of the day is 14.3h.

How many hours of sunshine does Kalmar have in April?

In April, the average sunshine is 9.3h.

What is the UV index reading in April in Kalmar?

In Kalmar, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in April
Kalmar, Sweden

Average temperature in April - Kalmar, Sweden
  • Average high temperature in April: 9.8°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 April: 3.3°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 April
Kalmar, Sweden

Average pressure in April - Kalmar, Sweden
  • Average pressure in April: 1015.4mbar

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 April
Kalmar, Sweden

Average wind speed in April - Kalmar, Sweden
  • Average wind speed in April: 14.8km/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 April
Kalmar, Sweden

Average humidity in April - Kalmar, Sweden
  • Average humidity in April: 71%

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 April
Kalmar, Sweden

Average rainfall in April - Kalmar, Sweden
  • Average rainfall in April: 10mm

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 April
Kalmar, Sweden

Average rainfall days in April - Kalmar, Sweden
  • Average rainfall days in April: 8.1 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 April
Kalmar, Sweden

Average snowfall in April - Kalmar, Sweden
  • Average snowfall in April: 8mm

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 April
Kalmar, Sweden

Average snowfall days in April - Kalmar, Sweden
  • Average snowfall days in April: 1.5 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 April
Kalmar, Sweden

Average sea temperature in April - Kalmar, Sweden
  • Average sea temperature in April: 3.8°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 April /
Average sunshine in April
Kalmar, Sweden

Average daylight in April / Average sunshine in April - Kalmar, Sweden
  • Average daylight in April: 14.3h

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 April: 9.3h

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 April
Kalmar, Sweden

Average sunshine days in April - Kalmar, Sweden
  • Average sunshine days in April: 18.3 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 April
Kalmar, Sweden

Average UV index in April - Kalmar, Sweden
  • Average UV index in April: 3

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 April
Kalmar, Sweden

Average cloud cover in April - Kalmar, Sweden
  • Average cloud cover in April: 39

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 April
Kalmar, Sweden

Average visibility in April - Kalmar, Sweden
  • Average visibility in April: 10km

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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