Pireas
Greece
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Pireas, Greece

The best months for a swim in Pireas, Greece, are July through September, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.
In Pireas, Greece, in January, the average water temperature 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 January »

The month with the coldest seawater in Pireas, Greece, is February, with an average sea temperature of 15°C (59°F). Note: For swimming, a surface water temperature of 15°C (59°F) is not enjoyable for the majority. Weather in February »

In March, the average sea temperature in Pireas, Greece, is 15.3°C (59.5°F). Note: For swimming, a surface water temperature of 15.3°C (59.5°F) is not enjoyable for the majority. Weather in March »

In April, the average sea temperature in Pireas, Greece, is 15.8°C (60.4°F). Note: For most, swimming in 15.8°C (60.4°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 April »

In May, the average sea temperature in Pireas, Greece, is 18.5°C (65.3°F). Note: For swimming, a surface water temperature of 18.5°C (65.3°F) is not enjoyable for the majority. Weather in May »

In June, the average sea temperature in Pireas, Greece, is 22.6°C (72.7°F). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 22.6°C (72.7°F) water. Weather in June »

The ideal sea water temperature of 25.8°C (78.4°F) make July the best time for swimming and other water activities in Pireas, Greece. In Pireas, Greece, the average seawater temperature in July is 25.8°C (78.4°F). Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods. Weather in July »

The ideal sea water temperature of 26.3°C (79.3°F) make August the best time for swimming and other water activities in Pireas, Greece. August is the month with the warmest seawater, with an average sea temperature of 26.3°C (79.3°F). Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. Weather in August »

The ideal sea water temperature of 25°C (77°F) make September the best time for swimming and other water activities in Pireas, Greece. In Pireas, Greece, in September, the average water temperature is 25°C (77°F). Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods. Weather in September »

In Pireas, Greece, in October, the average water temperature is 22.3°C (72.1°F). Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. Weather in October »

In Pireas, Greece, the average seawater temperature in November is 19.2°C (66.6°F). Note: For most, swimming in 19.2°C (66.6°F) is not an enjoyable activity. Weather in November »

In Pireas, Greece, in December, the average water temperature is 16.6°C (61.9°F). Note: Swimming in 16.6°C (61.9°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 December »

What month is the sea coldest in Pireas?

With an average sea temperature of 15°C (59°F), February is the month with the coldest seawater in Pireas.

When are the longest days in Pireas?

June has the longest days of the year, with an average of 14.8h of daylight.

When is the sea warmest in Pireas?

The month with the warmest seawater in Pireas is August, with an average sea temperature of 26.3°C (79.3°F).

What is the month with the shortest days in Pireas?

With an average of 9.6h of daylight, December has the shortest days of the year.
Average sea temperature - Pireas, Greece

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15°C).

Average daylight - Pireas, Greece

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.6h).