De Haan
Belgium
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
De Haan, Belgium

In De Haan, Belgium, in January, the average water temperature is 7.3°C (45.1°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 January »

In February, the average sea temperature in De Haan, Belgium, is 7.2°C (45°F). Note: Swimming in 7.2°C (45°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 February »

The month with the coldest seawater in De Haan, Belgium, is March, with an average sea temperature of 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 March »

In De Haan, Belgium, in April, the average water temperature is 9.2°C (48.6°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 De Haan, Belgium, in May, the average water temperature is 11.8°C (53.2°F). Note: Swimming in 11.8°C (53.2°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 De Haan, Belgium, is 14.8°C (58.6°F). Note: Swimming in 14.8°C (58.6°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 June »

In De Haan, Belgium, in July, the average water temperature is 16.8°C (62.2°F). Note: Swimming in 16.8°C (62.2°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F). Weather in July »

The month with the warmest seawater in De Haan, Belgium, 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. Weather in August »

In De Haan, Belgium, in September, the average water temperature 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 September »

In De Haan, Belgium, the average seawater temperature in October is 16.1°C (61°F). Note: For swimming, a surface water temperature of 16.1°C (61°F) is not enjoyable for the majority. Weather in October »

In De Haan, Belgium, in November, the average water temperature is 13.8°C (56.8°F). Note: Swimming in 13.8°C (56.8°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 De Haan, Belgium, in December, the average water temperature is 10.5°C (50.9°F). Note: Swimming in 10.5°C (50.9°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in December »

What month is the sea coldest in De Haan?

The month with the coldest seawater is March, with an average sea temperature of 7.1°C (44.8°F).

When are the longest days in De Haan?

June has the longest days of the year in De Haan, with an average of 16.5h of daylight.

When is the sea warmest in De Haan?

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

What is the month with the shortest days in De Haan?

December has the shortest days of the year in De Haan, with an average of 8h of daylight.
Average sea temperature - De Haan, Belgium

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 March (7.1°C).

Average daylight - De Haan, Belgium