Porthleven Weather in September

September in Porthleven averages 18°C (64°F) during the day and 14°C (57°F) at night. Quite a bit of rainfall is typical this month, with around 66 mm (2.6 in) on average. An umbrella is a good idea.

Rainfall in Porthleven in September

Looking at the last 30 years, the data shows about 16 days with rain, averaging 66 mm (2.6 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Porthleven in September

Expect highs of 18°C (64°F) in Porthleven in September, with nights dropping to around 14°C (57°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Porthleven in September

With about 165 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

If you prefer dry days with pleasant temperatures, August typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.