When does Jamaica receive most of its rainfall?

Jamaica experiences a tropical climate with seasonal rainfall. The island receives the majority of its precipitation during two primary periods: May and October.1

While these months see the heaviest rainfall, the summer period from June to September can also bring significant showers due to thunderstorms. The amount of rain varies significantly across the island; for instance, the eastern parish of Portland receives over 130 inches (3,300 mm) annually due to the influence of mountains on the trade winds, whereas the southern and southwestern savannas remain relatively dry.1