The best time to go to Trelights is typically during the late spring, summer, and early autumn months, from May to October, when the weather is at its most pleasant for exploring the Cornish coast.For those looking to enjoy the beaches and outdoor activities like coastal walks and watersports, the summer months of July and August offer the warmest temperatures and longest daylight hours. This is also when the sea is warmest for swimming. However, it's the busiest time, so expect more people and higher prices for accommodation.If you prefer a quieter experience with comfortable weather, late spring (May and June) and early autumn (September and October) are ideal. The crowds are smaller, the scenery is still beautiful, and you'll often find better value on places to stay.