Riantec
France
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Riantec, France

In Riantec, France, the average seawater temperature in January is 10.4°C (50.7°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 9.9°C (49.8°F), February is the month with the coldest seawater in Riantec, France. Note: Swimming in 9.9°C (49.8°F) is considered dangerous. Weather in February »

In March, the average sea temperature in Riantec, France, is 10.1°C (50.2°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 Riantec, France, in April, the average water temperature is 11.8°C (53.2°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 Riantec, France, the average seawater temperature in May is 14.1°C (57.4°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 May »

In Riantec, France, the average seawater temperature in June is 16°C (60.8°F). Note: For most, swimming in 16°C (60.8°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 Riantec, France, in July, the average water temperature is 17.3°C (63.1°F). Note: For most, swimming in 17.3°C (63.1°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 Riantec, France, is August, with an average sea temperature of 17.9°C (64.2°F). Note: For swimming, a surface water temperature of 17.9°C (64.2°F) is not enjoyable for the majority. Weather in August »

In September, the average sea temperature in Riantec, France, is 17.8°C (64°F). Note: For most, swimming in 17.8°C (64°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 September »

In Riantec, France, the average seawater temperature in October is 16.4°C (61.5°F). Note: For swimming, a surface water temperature of 16.4°C (61.5°F) is not enjoyable for the majority. Weather in October »

In Riantec, France, the average seawater temperature in November 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 November »

In December, the average sea temperature in Riantec, France, is 12.6°C (54.7°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 December »

What is the month with the coldest sea water in Riantec?

With an average sea temperature of 9.9°C (49.8°F), February is the month with the coldest seawater.

When are the longest days in Riantec?

The month with the longest days in Riantec, France, is June, with an average of 15.9h of daylight.

When is the sea warmest in Riantec?

August is the month with the warmest seawater in Riantec, with an average sea temperature of 17.9°C (64.2°F).

What is the month with the shortest days in Riantec?

With an average of 8.5h of daylight, December has the shortest days of the year.
Average sea temperature - Riantec, France

The best month for swimming (with the highest average sea temperature) is August (17.9°C).
The coldest month (with the lowest average sea temperature) is February (9.9°C).

Average daylight - Riantec, France

The month with the longest days is June (Average daylight: 15.9h).
The month with shortest days is December (Average daylight: 8.5h).