Sea Temperature in Santec in September

© Jean David

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

Santec Climate and Swimming Opportunities in September

Santec lies within the Brittany in France. The average daytime temperature in Santec in September is 20°C (67°F), while the nighttime average is 13°C (55°F). There are typically 10 rainy days during the month, with a total precipitation of 63 mm (2.5 inches). The daylight duration in September in Santec is 12 hours, with an average of 6 hours of sunshine per day. The average wind speed in September is 18 km/h (11 mph), and the humidity level is around 83%.

The water temperature in Santec in September ranges from 15°C to 17°C (59°F to 63°F). At the beginning of the month, the average temperature is around 17°C (63°F), shifting to 16°C (61°F) by mid-September and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Santec for September is 16°C (61°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Frequently Asked Questions About Water Temperatures in September in Santec