Porthleven, United Kingdom offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Porthleven is known for its picturesque harbor, the annual Porthleven Food Festival, and the iconic Porthleven Clock Tower. The best time to travel to Porthleven, United Kingdom, is from June to September, when the average air temperature is around 15-19°C (59-66°F) and the water temperature is approximately 15-17°C (59-63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!