The best time to go to Green Turtle Cay is during the dry season, which runs from December to May, offering warm temperatures and less rain.During these months, you'll experience average daily temperatures ranging from 24°C to 28°C, with pleasant breezes. This period is ideal for enjoying the island's outdoor activities, such as snorkelling, diving, and boating, as the waters are generally calm and clear. The lower humidity also makes exploring the charming settlement of New Plymouth more comfortable.For travellers looking for a more relaxed and less crowded experience, the shoulder months of May and early June, or late November and early December, can also be excellent. While there's a slightly higher chance of rain, you'll still find lovely weather and fewer visitors, potentially offering better value on accommodation and activities.However, it's worth noting that June through November is hurricane season. While direct hits are infrequent, there is a risk of tropical storms which can disrupt travel plans.