The best time to visit Bressay is during the summer months, from June to August, when the weather is mildest and the days are long.During this period, you'll experience the famous "simmer dim," where daylight extends late into the evening, sometimes only dimming for a few hours around midnight. This provides ample opportunity for outdoor activities like walking, cycling, and wildlife watching. The Bressay Lighthouse, a prominent landmark on the island's south-east coast, is particularly striking under these extended daylight conditions.Birdwatchers will find June and July especially rewarding, as these months coincide with the breeding season for many seabirds. The cliffs around the island, particularly near the lighthouse and in the Noss National Nature Reserve (a short ferry ride from Bressay), are filled with species like puffins, gannets, and guillemots.While the summer offers the most comfortable weather for exploring Bressay's natural beauty, the shoulder seasons of May and September can also be pleasant, often with fewer visitors and still decent daylight hours.