Sea Temperature in Penarth in September

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

Penarth Climate and Swimming Opportunities in September

Penarth lies within the Wales in United Kingdom. The average daytime temperature in Penarth 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 87 mm (3.4 inches). The daylight duration in September in Penarth is 13 hours, with an average of 5 hours of sunshine per day. The average wind speed in September is 14 km/h (9 mph), and the humidity level is around 86%.

The water temperature in Penarth in September ranges from 16°C to 17°C (61°F to 63°F). At the beginning of the month, the average temperature is around 17°C (63°F), shifting to 17°C (63°F) by mid-September and reaching 17°C (63°F) in the last ten days. Overall, the average sea temperature in Penarth for September is 17°C (63°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 Penarth