Ondarroa
Spain
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Ondarroa, Spain

In Ondarroa, Spain, the average seawater temperature in January is 12.8°C (55°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 »
With an average sea temperature of 12.4°C (54.3°F), February is the month with the coldest seawater in Ondarroa, Spain. 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 »

In March, the average sea temperature in Ondarroa, Spain, is 12.6°C (54.7°F). Note: Swimming in 12.6°C (54.7°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 March »

In Ondarroa, Spain, the average seawater temperature in April is 13.9°C (57°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 Ondarroa, Spain, in May, the average water temperature is 16.3°C (61.3°F). Note: For most, swimming in 16.3°C (61.3°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F). Weather in May »

In June, the average sea temperature in Ondarroa, Spain, is 19°C (66.2°F). Note: For most, swimming in 19°C (66.2°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F). Weather in June »

In Ondarroa, Spain, the average seawater temperature in July is 20.5°C (68.9°F). Note: For most, swimming in 20.5°C (68.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F). Weather in July »

The month with the warmest seawater in Ondarroa, Spain, is August, with an average sea temperature of 21.3°C (70.3°F). Note: For swimming, a surface water temperature of 21.3°C (70.3°F) is not enjoyable for the majority. Weather in August »

In September, the average sea temperature in Ondarroa, Spain, is 20.8°C (69.4°F). Note: Swimming in 20.8°C (69.4°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 September »

In Ondarroa, Spain, in October, the average water temperature is 18.8°C (65.8°F). Note: For most, swimming in 18.8°C (65.8°F) is not an enjoyable activity. Weather in October »

In Ondarroa, Spain, the average seawater temperature in November is 16.4°C (61.5°F). Note: Swimming in 16.4°C (61.5°F) is not enjoyable for the majority. Weather in November »

In Ondarroa, Spain, the average seawater temperature in December is 14.3°C (57.7°F). Note: Swimming in 14.3°C (57.7°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in December »

When is the sea coldest in Ondarroa?

With an average sea temperature of 12.4°C (54.3°F), February is the month with the coldest seawater.

When are the longest days in Ondarroa?

The month with the longest days in Ondarroa, Spain, is June, with an average of 15.4h of daylight.

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

With an average sea temperature of 21.3°C (70.3°F), August is the month with the warmest seawater.

What is the month with the shortest days in Ondarroa?

With an average of 9h of daylight, December has the shortest days of the year in Ondarroa.
Average sea temperature - Ondarroa, Spain

The best month for swimming (with the highest average sea temperature) is August (21.3°C).
The coldest month (with the lowest average sea temperature) is February (12.4°C).

Average daylight - Ondarroa, Spain