August weather forecast and climate
Roskilde, Denmark

Weather in August

The last month of the summer, August, is another pleasant month in Roskilde, Denmark, with average temperature varying between 14.9°C (58.8°F) and 20.3°C (68.5°F).

Temperature

In Roskilde, the average high-temperature in August is almost the same as in July - a still agreeable 20.3°C (68.5°F). The average low-temperature, in August, is 14.9°C (58.8°F).

Humidity

In August, the average relative humidity is 78%.

Rainfall

The month with the most rainfall in Roskilde is August when the rain falls for 16.9 days and typically aggregates up to 45mm (1.77") of precipitation.

Snowfall

In Roskilde snow does not fall in May through October.

Sea temperature

The month with the warmest seawater is August, with an average sea temperature of 18.4°C (65.1°F).
Note: For swimming, a surface water temperature of 18.4°C (65.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day in August is 15h.

Sunshine

With an average of 9.4h of sunshine, August has the most sunshine of the year.

UV index

July and August, with an average maximum UV index of 5, are months with the highest UV index in Roskilde. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.
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FAQ

What is the average humidity in August in Roskilde?

In Roskilde, the average relative humidity in August is 78%.

What is the rainiest month in Roskilde?

The month with the most rainfall in Roskilde, Denmark, is August when the rain falls for 16.9 days and typically aggregates up to 45mm (1.77") of precipitation.

How many days does it rain in August in Roskilde?

In Roskilde, Denmark, in August, during 16.9 rainfall days, 45mm (1.77") of precipitation is typically accumulated.

When it does not snow in Roskilde?

In Roskilde, Denmark, snow does not fall in May through October.

When is the sea warmest in Roskilde?

With an average sea temperature of 18.4°C (65.1°F), August is the month with the warmest seawater.

What is the sea temperature in August in Roskilde?

In Roskilde, Denmark, the average seawater temperature in August is 18.4°C (65.1°F). For swimming, a surface water temperature of 18.4°C (65.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the average length of the day in August in Roskilde?

In August, the average length of the day in Roskilde is 15h.

What month has the most sunshine in Roskilde?

The month with the most sunshine is August, with an average of 9.4h of sunshine.

How many hours of sunshine does Roskilde have in August?

In Roskilde, Denmark, the average sunshine in August is 9.4h.

What are the months with the highest UV index in Roskilde?

July and August, with an average maximum UV index of 5, are months with the highest UV index in Roskilde.

How high is the UV index in August in Roskilde?

In August, the average daily maximum UV index in Roskilde is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in August
Roskilde, Denmark

Average temperature in August - Roskilde, Denmark
  • Average high temperature in August: 20.3°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 August: 14.9°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 August
Roskilde, Denmark

Average pressure in August - Roskilde, Denmark
  • Average pressure in August: 1014mbar

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 August
Roskilde, Denmark

Average wind speed in August - Roskilde, Denmark
  • Average wind speed in August: 14.4km/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 August
Roskilde, Denmark

Average humidity in August - Roskilde, Denmark
  • Average humidity in August: 78%

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 August
Roskilde, Denmark

Average rainfall in August - Roskilde, Denmark
  • Average rainfall in August: 45mm

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 August
Roskilde, Denmark

Average rainfall days in August - Roskilde, Denmark
  • Average rainfall days in August: 16.9 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 August
Roskilde, Denmark

Average snowfall in August - Roskilde, Denmark
  • Average snowfall in August: 0mm

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 August
Roskilde, Denmark

Average snowfall days in August - Roskilde, Denmark
  • Average snowfall days in August: 0 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 August
Roskilde, Denmark

Average sea temperature in August - Roskilde, Denmark
  • Average sea temperature in August: 18.4°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 August /
Average sunshine in August
Roskilde, Denmark

Average daylight in August / Average sunshine in August - Roskilde, Denmark
  • Average daylight in August: 15h

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 August: 9.4h

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 August
Roskilde, Denmark

Average sunshine days in August - Roskilde, Denmark
  • Average sunshine days in August: 9.8 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 August
Roskilde, Denmark

Average UV index in August - Roskilde, Denmark
  • Average UV index in August: 5

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 August
Roskilde, Denmark

Average cloud cover in August - Roskilde, Denmark
  • Average cloud cover in August: 39

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 August
Roskilde, Denmark

Average visibility in August - Roskilde, Denmark
  • Average visibility in August: 10km

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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