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

March weather forecast and climate
Porthleven, United Kingdom

Sea temperature

The month with the coldest seawater in Porthleven, United Kingdom, is March, with an average sea temperature of 9.7°C (49.5°F).
Note: Swimming in 9.7°C (49.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In March, the average length of the day is 11.9h.

What month is the sea coldest in Porthleven?

With an average sea temperature of 9.7°C (49.5°F), March is the month with the coldest seawater in Porthleven, United Kingdom.

What is the water temperature in March in Porthleven?

In Porthleven, United Kingdom, in March, the average water temperature is 9.7°C (49.5°F). Swimming in 9.7°C (49.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Porthleven have in March?

The average length of the day in March in Porthleven is 11.9h.
Average sea temperature in March - Porthleven, United Kingdom
  • Average sea temperature in March: 9.7°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 March - Porthleven, United Kingdom
  • Average daylight in March: 11.9h

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