The best time to go to Lagg is during the summer months, from June to August, when the weather is at its most pleasant, or the shoulder seasons of May and September for fewer crowds.Summer offers the warmest temperatures and the longest daylight hours, making it ideal for exploring the Isle of Arran's outdoor attractions. You'll find the weather comfortable for hiking, cycling, and enjoying the beaches around Lagg. This is superb for families looking to make the most of the island's natural beauty and activities.For couples seeking a more tranquil experience, May and September are excellent choices. While the weather might be a little cooler, you'll benefit from fewer visitors at popular spots like the Arran Distillery or Brodick Castle.