Port Isaac, United Kingdom offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Port Isaac is known for its picturesque fishing village charm and as the filming location for the television series "Doc Martin." The best time to travel to Port Isaac, United Kingdom, is from June to September, with average air temperatures around 15-20°C (59-68°F) and sea temperatures around 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!