Frederikshavn
Denmark
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Frederikshavn, Denmark

In January, the average sea temperature in Frederikshavn, Denmark, is 3.6°C (38.5°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in January »
In February, the average sea temperature in Frederikshavn, Denmark, is 3.3°C (37.9°F). Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Weather in February »

With an average sea temperature of 2.8°C (37°F), March is the month with the coldest seawater in Frederikshavn, Denmark. Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Weather in March »

In Frederikshavn, Denmark, in April, the average water temperature is 7.1°C (44.8°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 April »

In May, the average sea temperature in Frederikshavn, Denmark, is 11.3°C (52.3°F). Note: Swimming in 11.3°C (52.3°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 Frederikshavn, Denmark, the average seawater temperature in June is 15.5°C (59.9°F). Note: For most, swimming in 15.5°C (59.9°F) is not an enjoyable activity. Weather in June »

In Frederikshavn, Denmark, the average seawater temperature in July is 17.8°C (64°F). Note: For swimming, a surface water temperature of 17.8°C (64°F) is not enjoyable for the majority. Weather in July »

With an average sea temperature of 18.3°C (64.9°F), August is the month with the warmest seawater in Frederikshavn, Denmark. Note: Swimming in 18.3°C (64.9°F) is not enjoyable for the majority. Weather in August »

In September, the average sea temperature in Frederikshavn, Denmark, is 16.3°C (61.3°F). Note: For most, swimming in 16.3°C (61.3°F) is not an enjoyable activity. Weather in September »

In Frederikshavn, 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 Frederikshavn, Denmark, the average seawater temperature in November is 9.3°C (48.7°F). Note: Swimming in 9.3°C (48.7°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in November »

In Frederikshavn, Denmark, the average seawater temperature in December is 6°C (42.8°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 December »

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

March is the month with the coldest seawater, with an average sea temperature of 2.8°C (37°F).

When are the longest days in Frederikshavn?

June has the longest days of the year in Frederikshavn, with an average of 17.9h of daylight.

What is the month with the warmest sea water in Frederikshavn?

August is the month with the warmest seawater, with an average sea temperature of 18.3°C (64.9°F).

What is the month with the shortest days in Frederikshavn?

With an average of 6.7h of daylight, December has the shortest days of the year.
Average sea temperature - Frederikshavn, Denmark

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 (2.8°C).

Average daylight - Frederikshavn, Denmark

The month with the longest days is June (Average daylight: 17.9h).
The month with shortest days is December (Average daylight: 6.7h).