The best time to go to Portuguese Island is during the dry season, which runs from May to October. This period offers pleasant weather with clear skies and comfortable temperatures, making it ideal for enjoying the island's outdoor activities.During these months, you can expect warm, sunny days great for swimming, snorkelling, and relaxing on the beaches. The sea is generally calm and clear, which is excellent for water sports and boat trips. It's also the best time for wildlife viewing if you plan to visit nearby areas on the mainland.For those looking to avoid the busiest crowds, the shoulder months of May, June, September, and October are particularly good. You'll still benefit from the fantastic weather but with fewer visitors.