Sea Temperature in Guissény in August

© Rosdiana André

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

Guissény Climate and Swimming Opportunities in August

Guissény lies within the Brittany in France. The average daytime temperature in Guissény in August is 22°C (72°F), while the nighttime average is 14°C (57°F). There are typically nine rainy days during the month, with a total precipitation of 60 mm (2.3 inches). The daylight duration in August in Guissény 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 Guissény in August ranges from 15°C to 16°C (59°F to 61°F). At the beginning of the month, the average temperature is around 16°C (61°F), shifting to 16°C (61°F) by mid-August and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Guissény for August is 16°C (61°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 Guissény