The best time to go to Mustique Island is during the dry season, which runs from December to May.This period offers consistently warm temperatures, low humidity, and very little rain, making it ideal for enjoying the island's beaches, outdoor activities, and sailing. The seas are generally calmer during these months, great for swimming, snorkelling, and diving.Travellers looking for a luxurious winter escape will find December to February particularly appealing. The island is at its liveliest with a full calendar of events and social gatherings, though this is also peak season, so booking well in advance is essential. The weather is consistently superb, providing a great retreat from colder climates.For those seeking a slightly quieter experience with excellent weather, April and May are wonderful choices. The island remains beautiful and sunny, but with fewer crowds than the mid-winter months.