Gritley, United Kingdom offers 1 beach perfect for sunbathing, surfing, swimming, and more. Gritley, Scotland, United Kingdom, is known for the historic Gritley Castle and the annual Gritley Highland Games. The best time to travel to Gritley, United Kingdom, is during late spring to early summer (May to June) when the average air temperature is around 15-20°C (59-68°F) and water temperature is approximately 10-15°C (50-59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!