January weather forecast
Roskilde, Denmark

Weather in January

January, like December, in Roskilde, Denmark, is another cold winter month, with temperature in the range of an average low of -0.1°C (31.8°F) and an average high of 2.8°C (37°F).

Temperature

January and February, with an average high-temperature of 2.8°C (37°F), are the coldest months.

Humidity

January, November and December, with an average relative humidity of 88%, are most humid months.

Rainfall

In Roskilde, in January, it is raining for 10.1 days, with typically 24mm (0.94") of accumulated precipitation. In Roskilde, during the entire year, the rain falls for 166.6 days and collects up to 341mm (13.43") of precipitation.

Snowfall

January through April, November and December are months with snowfall in Roskilde, Denmark. In January, it is snowing for 8.3 days. Throughout January, 34mm (1.34") of snow is accumulated. Throughout the year, there are 26.6 snowfall days, and 122mm (4.8") of snow is accumulated.

Sea temperature

In Roskilde, the average seawater temperature is 2.2°C (36°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

In Roskilde, the average length of the day in January is 7.8h.

Sunshine

In January, the average sunshine is 3.1h.

UV index

The month with the lowest UV index in Roskilde is January, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: In January, the average maximum UV index of 1 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Roskilde?

The coldest months in Roskilde are January and February, with an average high-temperature of 2.8°C (37°F).

What is the most humid month in Roskilde?

January, November and December, with an average relative humidity of 88%, are most humid months in Roskilde, Denmark.

What is the average humidity in January in Roskilde?

In Roskilde, the average relative humidity in January is 88%.

How much does it rain in Roskilde in January?

In Roskilde, Denmark, in January, it is raining for 10.1 days, with typically 24mm (0.94") of accumulated precipitation.

How many days does it snow in January in Roskilde?

In Roskilde, Denmark, during January, snow falls for 8.3 days and regularly aggregates up to 34mm (1.34") of snow.

How cold is the water in January in Roskilde?

In Roskilde, in January, the average water temperature is 2.2°C (36°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 average length of the day in January in Roskilde?

In January, the average length of the day is 7.8h.

How many hours of sunshine does Roskilde have in January?

In Roskilde, the average sunshine in January is 3.1h.

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

January is the month with the lowest UV index in Roskilde, with an average maximum UV index of 1.

What is the UV index reading in January in Roskilde?

The average daily maximum UV index in January in Roskilde is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in January
Roskilde, Denmark

Average temperature in January - Roskilde, Denmark
  • Average high temperature in January: 2.8°C

The warmest month (with the highest average high temperature) is July (20.4°C).
Months with the lowest average high temperature are January and February (2.8°C).

  • Average low temperature in January: -0.1°C

The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is February (-0.6°C).

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Average pressure in January
Roskilde, Denmark

Average pressure in January - Roskilde, Denmark
  • Average pressure in January: 1012.8mbar

The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).

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Average wind speed in January
Roskilde, Denmark

Average wind speed in January - Roskilde, Denmark
  • Average wind speed in January: 18.4km/h

The windiest month (with the highest average wind speed) is December (19.1km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).

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Average humidity in January
Roskilde, Denmark

Average humidity in January - Roskilde, Denmark
  • Average humidity in January: 88%

Months with the highest relative humidity are January, November and December (88%).
Months with the lowest relative humidity are April, May, June and July (77%).

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Average rainfall in January
Roskilde, Denmark

Average rainfall in January - Roskilde, Denmark
  • Average rainfall in January: 24mm

The wettest month (with the highest rainfall) is August (45mm).
The driest month (with the least rainfall) is April (17mm).

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Average rainfall days in January
Roskilde, Denmark

Average rainfall days in January - Roskilde, Denmark
  • Average rainfall days in January: 10.1 days

Months with the highest number of rainy days are July and August (16.9 days).
The month with the least rainy days is February (9.1 days).

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Average snowfall in January
Roskilde, Denmark

Average snowfall in January - Roskilde, Denmark
  • Average snowfall in January: 34mm

The month with the highest snowfall is February (35mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in January
Roskilde, Denmark

Average snowfall days in January - Roskilde, Denmark
  • Average snowfall days in January: 8.3 days

The month with the highest number of snowfall days is January (8.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in January
Roskilde, Denmark

Average sea temperature in January - Roskilde, Denmark
  • Average sea temperature in January: 2.2°C

The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest month (with the lowest average sea temperature) is February (2.1°C).

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Average daylight in January /
Average sunshine in January
Roskilde, Denmark

Average daylight in January / Average sunshine in January - Roskilde, Denmark
  • Average daylight in January: 7.8h

The month with the longest days is June (Average daylight: 17.4h).
The month with the shortest days is December (Average daylight: 7.1h).

  • Average sunshine in January: 3.1h

The month with the most sunshine is August (Average sunshine: 9.4h).
The month with the least sunshine is December (Average sunshine: 3h).

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Average sunshine days in January
Roskilde, Denmark

Average sunshine days in January - Roskilde, Denmark
  • Average sunshine days in January: 12.8 days

The month with the most sunshine days is April (14.6 days).
The month with the least sunshine days is August (9.8 days).

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Average UV index in January
Roskilde, Denmark

Average UV index in January - Roskilde, Denmark
  • Average UV index in January: 1

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

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Average cloud cover in January
Roskilde, Denmark

Average cloud cover in January - Roskilde, Denmark
  • Average cloud cover in January: 69

The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).

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Average visibility in January
Roskilde, Denmark

Average visibility in January - Roskilde, Denmark
  • Average visibility in January: 9km

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

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