The best time to go to Long Bay, Portland, Jamaica is during the dry season, which runs from December to May.This period generally offers consistent sunshine and lower humidity, making it ideal for enjoying the beaches and outdoor activities. You can expect pleasant temperatures, superb for swimming, surfing, or simply relaxing by the coast.For those looking to avoid the peak tourist crowds and still enjoy good weather, the shoulder months of May and early December are excellent choices. You'll often find slightly better value on accommodation and flights, while still benefiting from plenty of sun.While the rainy season (June to November) can bring tropical showers, they often occur in short bursts, leaving plenty of sunshine afterwards.