Hoorn
Netherlands
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Hoorn, Netherlands

In Hoorn, Netherlands, in January, the average water temperature is 6.4°C (43.5°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 »

February and March, with an average sea temperature of 6.3°C (43.3°F), are months with the coldest seawater in Hoorn, Netherlands. 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 February »

Months with the coldest seawater in Hoorn, Netherlands, are February and March, with an average sea temperature of 6.3°C (43.3°F). Note: Swimming in 6.3°C (43.3°F) is considered life-threatening. Weather in March »

In April, the average sea temperature in Hoorn, Netherlands, is 8.6°C (47.5°F). Note: Swimming in 8.6°C (47.5°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 Hoorn, Netherlands, in May, the average water temperature is 11.5°C (52.7°F). Note: Swimming in 11.5°C (52.7°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 May »

In Hoorn, Netherlands, the average seawater temperature in June is 14.8°C (58.6°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 June »

In July, the average sea temperature in Hoorn, Netherlands, is 16.9°C (62.4°F). Note: Swimming in 16.9°C (62.4°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 »

In Hoorn, Netherlands, the average seawater temperature in August is 17.9°C (64.2°F). Note: Swimming in 17.9°C (64.2°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 August »

September is the month with the warmest seawater in Hoorn, Netherlands, with an average sea temperature of 18°C (64.4°F). Note: For swimming, a surface water temperature of 18°C (64.4°F) is not enjoyable for the majority. Weather in September »

In October, the average sea temperature in Hoorn, Netherlands, is 15.4°C (59.7°F). Note: For most, swimming in 15.4°C (59.7°F) is not an enjoyable activity. Weather in October »

In November, the average sea temperature in Hoorn, Netherlands, is 12.8°C (55°F). Note: Swimming in 12.8°C (55°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 December, the average sea temperature in Hoorn, Netherlands, 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 December »

What are the months with the coldest sea water in Hoorn?

February and March, with an average sea temperature of 6.3°C (43.3°F), are months with the coldest seawater in Hoorn.

When are the longest days in Hoorn?

The month with the longest days in Hoorn is June, with an average of 16.8h of daylight.

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

With an average sea temperature of 18°C (64.4°F), September is the month with the warmest seawater.

What is the month with the shortest days in Hoorn?

With an average of 7.7h of daylight, December has the shortest days of the year in Hoorn, Netherlands.
Average sea temperature - Hoorn, Netherlands

The best month for swimming (with the highest average sea temperature) is September (18°C).
Coldest months (with the lowest average sea temperature) are February and March (6.3°C).

Average daylight - Hoorn, Netherlands

The month with the longest days is June (Average daylight: 16.8h).
The month with shortest days is December (Average daylight: 7.7h).