Cassis
France
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Cassis, France

In January, the average sea temperature in Cassis, France, is 13.4°C (56.1°F). Note: Swimming in 13.4°C (56.1°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 »

February is the month with the coldest seawater in Cassis, France, with an average sea temperature of 13°C (55.4°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 Cassis, France, the average seawater temperature in March is 13.3°C (55.9°F). Note: Swimming in 13.3°C (55.9°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in March »

In April, the average sea temperature in Cassis, France, is 14.4°C (57.9°F). Note: Swimming in 14.4°C (57.9°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 May, the average sea temperature in Cassis, France, is 17.1°C (62.8°F). Note: For swimming, a surface water temperature of 17.1°C (62.8°F) is not enjoyable for the majority. Weather in May »

In June, the average sea temperature in Cassis, France, 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 June »

In Cassis, France, the average seawater temperature in July is 21.6°C (70.9°F). Note: For swimming, a surface water temperature of 21.6°C (70.9°F) is not enjoyable for the majority. Weather in July »

With an average sea temperature of 22.3°C (72.1°F), August is the month with the warmest seawater in Cassis, France. Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22.3°C (72.1°F) water may be enjoyable. Weather in August »

In Cassis, France, the average seawater temperature in September is 21.8°C (71.2°F). Note: For most, swimming in 21.8°C (71.2°F) is not an enjoyable activity. Weather in September »

In October, the average sea temperature in Cassis, France, is 19.2°C (66.6°F). Note: Swimming in 19.2°C (66.6°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 Cassis, France, is 17.3°C (63.1°F). Note: Swimming in 17.3°C (63.1°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 November »

In Cassis, France, in December, the average water temperature is 15°C (59°F). Note: For swimming, a surface water temperature of 15°C (59°F) is not enjoyable for the majority. Weather in December »

When is the sea coldest in Cassis?

February is the month with the coldest seawater in Cassis, France, with an average sea temperature of 13°C (55.4°F).

When are the longest days in Cassis?

The month with the longest days in Cassis, France, is June, with an average of 15.3h of daylight.

When is the sea warmest in Cassis?

With an average sea temperature of 22.3°C (72.1°F), August is the month with the warmest seawater.

What is the month with the shortest days in Cassis?

With an average of 9h of daylight, December has the shortest days of the year.
Average sea temperature - Cassis, France

The best month for swimming (with the highest average sea temperature) is August (22.3°C).
The coldest month (with the lowest average sea temperature) is February (13°C).

Average daylight - Cassis, France