More often than not you can expect weather in Porthleven right through the month of September is 12. Average high degrees are usually 17 and lows being 11 degrees. For more context we have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 12 |
| High Temperature | 17 |
| Low Temperature | 11 |
| Sunshine Per Day | 6 |
Useful Links: Porthleven Weather: Average Weather & Yearly Climate