For much of the year Jamaica's weather is as near perfect as one could wish for - plenty of sunshine, not too hot and pleasant cooling breezes. But there are considerable variations throughout the year and across the island. With fairly stiff northeasterly trade winds ensuring relatively low humidity levels, it is rarely likely to feel uncomfortable.
Annual rainfall is generally low, at least on the coast.
But the Blue Mountains extend to over 2,300 metres and on their northern slopes there can be as much as 5,000 millimetres of rain each year. This contrasts with just 750 on the sheltered south coast. The one hazard which needs to be borne in mind is hurricanes. From June to November is hurricane season, with a peak in August and September. The worst of these tropical cyclones can deposit as much as 500 millimetres of rain in two or three days.