Sea Temperature in Waterville in September

© Paul McMahon

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

Waterville Climate and Swimming Opportunities in September

Waterville lies within the Munster in Ireland. The average daytime temperature in Waterville in September is 17°C (63°F), while the nighttime average is 11°C (51°F). There are typically 14 rainy days during the month, with a total precipitation of 106 mm (4.2 inches). The daylight duration in September in Waterville is 13 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 13 km/h (8 mph), and the humidity level is around 86%.

The water temperature in Waterville in September ranges from 14°C to 16°C (57°F to 61°F). At the beginning of the month, the average temperature is around 16°C (61°F), shifting to 15°C (59°F) by mid-September and reaching 15°C (59°F) in the last ten days. Overall, the average sea temperature in Waterville for September is 15°C (59°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 Waterville