Portugalete
Spain
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Portugalete, Spain

In January, the average sea temperature in Portugalete, Spain, is 13°C (55.4°F). Note: Swimming in 13°C (55.4°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in January »
With an average sea temperature of 12.7°C (54.9°F), February is the month with the coldest seawater in Portugalete, Spain. Note: Swimming in 12.7°C (54.9°F) is considered life-threatening. Weather in February »

In Portugalete, Spain, in March, the average water temperature 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 March »

In April, the average sea temperature in Portugalete, Spain, 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 Portugalete, Spain, in May, the average water temperature 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 May »

In Portugalete, Spain, in June, the average water temperature is 18.7°C (65.7°F). Note: For most, swimming in 18.7°C (65.7°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 Portugalete, Spain, the average seawater temperature in July is 20.3°C (68.5°F). Note: For swimming, a surface water temperature of 20.3°C (68.5°F) is not enjoyable for the majority. Weather in July »

With an average sea temperature of 21.2°C (70.2°F), August is the month with the warmest seawater in Portugalete, Spain. Note: For swimming, a surface water temperature of 21.2°C (70.2°F) is not enjoyable for the majority. Weather in August »

In Portugalete, Spain, in September, the average water temperature is 20.6°C (69.1°F). Note: For most, swimming in 20.6°C (69.1°F) is not an enjoyable activity. Weather in September »

In October, the average sea temperature in Portugalete, Spain, is 18.8°C (65.8°F). Note: Swimming in 18.8°C (65.8°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 October »

In November, the average sea temperature in Portugalete, Spain, is 16.6°C (61.9°F). Note: For swimming, a surface water temperature of 16.6°C (61.9°F) is not enjoyable for the majority. Weather in November »

In Portugalete, 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 life-threatening. Weather in December »

When is the sea coldest in Portugalete?

The month with the coldest seawater in Portugalete is February, with an average sea temperature of 12.7°C (54.9°F).

When are the longest days in Portugalete?

June has the longest days of the year in Portugalete, with an average of 15.4h of daylight.

What month is the sea warmest in Portugalete?

The month with the warmest seawater in Portugalete, Spain, is August, with an average sea temperature of 21.2°C (70.2°F).

What is the month with the shortest days in Portugalete?

December has the shortest days of the year, with an average of 9h of daylight.
Average sea temperature - Portugalete, Spain

The best month for swimming (with the highest average sea temperature) is August (21.2°C).
The coldest month (with the lowest average sea temperature) is February (12.7°C).

Average daylight - Portugalete, Spain