Sea Temperature in Roscoff in August

© Thomas Jaouen

Complete information on the sea temperature range in the Celtic Sea in Roscoff in August. Historical daily data. Climate details for August. Tips on swimming conditions and beach relaxation in Roscoff. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Roscoff Climate and Swimming Opportunities in August

Roscoff lies within the Brittany in France. The average daytime temperature in Roscoff in August is 22°C (72°F), while the nighttime average is 14°C (56°F). There are typically nine rainy days during the month, with a total precipitation of 52 mm (2.0 inches). The daylight duration in August in Roscoff is 14 hours, with an average of 7 hours of sunshine per day. The average wind speed in August is 18 km/h (11 mph), and the humidity level is around 83%.

The water temperature in Roscoff in August ranges from 16°C to 17°C (61°F to 63°F). At the beginning of the month, the average temperature is around 16°C (61°F), shifting to 17°C (63°F) by mid-August and reaching 17°C (63°F) in the last ten days. Overall, the average sea temperature in Roscoff for August is 17°C (63°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.

Frequently Asked Questions About Water Temperatures in August in Roscoff