Cuba Weather, climate and geography
Hot, sub-tropical climate all year. Most rain falls between May and October and the hurricane season officially runs from July to November, with most storms historically occurring in October and November. Humidity varies between 75% and 95%. Cooler months are January to April when the least rain falls.
Lightweight clothes most of the year; the high humidity makes it unwise to wear synthetics close to the skin. A light sweater is advisable even during the hottest months for installations with air conditioning (e.g. the Viazul bus, which is always frigid) and a heavier sweater or jacket for December through March when cold fronts can drop the mercury to 10 degrees Celsius (50°F). Light waterproofs are advisable all year round.