Roskilde
Denmark
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Roskilde, Denmark

In January, the average sea temperature in Roskilde, Denmark, is 2.2°C (36°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in January »
February is the month with the coldest seawater in Roskilde, Denmark, with an average sea temperature of 2.1°C (35.8°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in February »

In March, the average sea temperature in Roskilde, Denmark, is 2.3°C (36.1°F). Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. Weather in March »

In April, the average sea temperature in Roskilde, Denmark, is 6.3°C (43.3°F). Note: Swimming in 6.3°C (43.3°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in April »

In May, the average sea temperature in Roskilde, Denmark, is 11.1°C (52°F). Note: Swimming in 11.1°C (52°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in May »

In June, the average sea temperature in Roskilde, Denmark, is 15.8°C (60.4°F). Note: For swimming, a surface water temperature of 15.8°C (60.4°F) is not enjoyable for the majority. Weather in June »

In Roskilde, Denmark, the average seawater temperature in July is 18.2°C (64.8°F). Note: For swimming, a surface water temperature of 18.2°C (64.8°F) is not enjoyable for the majority. Weather in July »

The month with the warmest seawater in Roskilde, Denmark, is August, with an average sea temperature of 18.4°C (65.1°F). Note: For most, swimming in 18.4°C (65.1°F) is not an enjoyable activity. Weather in August »

In September, the average sea temperature in Roskilde, Denmark, is 16.4°C (61.5°F). Note: For swimming, a surface water temperature of 16.4°C (61.5°F) is not enjoyable for the majority. Weather in September »

In Roskilde, Denmark, in October, the average water temperature is 12.3°C (54.1°F). Note: Swimming in 12.3°C (54.1°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in October »

In November, the average sea temperature in Roskilde, Denmark, is 8.5°C (47.3°F). Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in November »

In Roskilde, Denmark, the average seawater temperature in December is 5.1°C (41.2°F). Note: Swimming in 5.1°C (41.2°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in December »

What is the month with the coldest sea water in Roskilde?

The month with the coldest seawater is February, with an average sea temperature of 2.1°C (35.8°F).

When are the longest days in Roskilde?

With an average of 17.4h of daylight, June has the longest days of the year in Roskilde.

What month is the sea warmest in Roskilde?

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

What is the month with the shortest days in Roskilde?

December has the shortest days of the year in Roskilde, with an average of 7.1h of daylight.
Average sea temperature - Roskilde, Denmark

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).

Average daylight - Roskilde, Denmark

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