Sea Temperature in Porthleven in August

© Paul Southy

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

Porthleven Climate and Swimming Opportunities in August

Porthleven lies within the England in United Kingdom. The average daytime temperature in Porthleven 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 Porthleven 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 Porthleven 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 17°C (63°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 Porthleven 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 Porthleven