Porthleven
United Kingdom
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Porthleven, United Kingdom

Sea temperature

With an average sea temperature of 17.1°C (62.8°F), August is the month with the warmest seawater in Porthleven, United Kingdom.
Note: Swimming in 17.1°C (62.8°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In August, the average length of the day in Porthleven is 14.4h.

When is the sea warmest in Porthleven?

With an average sea temperature of 17.1°C (62.8°F), August is the month with the warmest seawater in Porthleven, United Kingdom.

How cold is the water in August in Porthleven?

In Porthleven, the average seawater temperature in August is 17.1°C (62.8°F). Swimming in 17.1°C (62.8°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the average length of the day in August in Porthleven?

The average length of the day in August in Porthleven, United Kingdom, is 14.4h.
Average sea temperature in August - Porthleven, United Kingdom
  • Average sea temperature in August: 17.1°C

The best month for swimming (with the highest average sea temperature) is August (17.1°C).
The coldest month (with the lowest average sea temperature) is March (9.7°C).

Average daylight in August - Porthleven, United Kingdom
  • Average daylight in August: 14.4h

The month with the longest days is June (Average daylight: 16.3h).
The month with shortest days is December (Average daylight: 8.2h).