Castelsardo
Italy
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Castelsardo, Italy

In January, the average sea temperature in Castelsardo, Italy, is 14°C (57.2°F). Note: Swimming in 14°C (57.2°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 January »
The month with the coldest seawater in Castelsardo, Italy, is February, with an average sea temperature of 13.3°C (55.9°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 February »

In Castelsardo, Italy, in March, the average water temperature is 13.8°C (56.8°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 Castelsardo, Italy, the average seawater temperature in April is 15.2°C (59.4°F). Note: Swimming in 15.2°C (59.4°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 April »

In Castelsardo, Italy, the average seawater temperature in May 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 May »

In Castelsardo, Italy, in June, the average water temperature is 21.9°C (71.4°F). Note: For swimming, a surface water temperature of 21.9°C (71.4°F) is not enjoyable for the majority. Weather in June »

In Castelsardo, Italy, the average seawater temperature in July is 23.5°C (74.3°F). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.5°C (74.3°F) water. Weather in July »

August is the month with the warmest seawater in Castelsardo, Italy, with an average sea temperature of 24.1°C (75.4°F). Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.1°C (75.4°F) water may be enjoyable. Weather in August »

In Castelsardo, Italy, the average seawater temperature in September is 23.3°C (73.9°F). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.3°C (73.9°F) water. Weather in September »

In Castelsardo, Italy, the average seawater temperature in October is 21.3°C (70.3°F). Note: For most, swimming in 21.3°C (70.3°F) is not an enjoyable activity. Weather in October »

In Castelsardo, Italy, in November, the average water temperature is 19.1°C (66.4°F). Note: For most, swimming in 19.1°C (66.4°F) is not an enjoyable activity. Weather in November »

In December, the average sea temperature in Castelsardo, Italy, is 16.2°C (61.2°F). Note: For swimming, a surface water temperature of 16.2°C (61.2°F) is not enjoyable for the majority. Weather in December »

What month is the sea coldest in Castelsardo?

The month with the coldest seawater in Castelsardo is February, with an average sea temperature of 13.3°C (55.9°F).

When are the longest days in Castelsardo?

June has the longest days of the year, with an average of 15.1h of daylight.

When is the sea warmest in Castelsardo?

With an average sea temperature of 24.1°C (75.4°F), August is the month with the warmest seawater in Castelsardo, Italy.

What is the month with the shortest days in Castelsardo?

December has the shortest days of the year in Castelsardo, Italy, with an average of 9.3h of daylight.
Average sea temperature - Castelsardo, Italy

The best month for swimming (with the highest average sea temperature) is August (24.1°C).
The coldest month (with the lowest average sea temperature) is February (13.3°C).

Average daylight - Castelsardo, Italy

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).