Milarrochy, United Kingdom offers 1 beach perfect for sunbathing, surfing, swimming, and more. Milarrochy, Scotland, United Kingdom, is known for the Milarrochy Bay on Loch Lomond, which is a popular spot for hiking and photography. The best time to travel to Milarrochy, United Kingdom, is during late spring to early autumn (May to September) when the average air temperature ranges from 10°C to 18°C and the water temperature is around 10°C to 15°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!