The cuban climate is what they class as subtropical. The island receives trade winds and lovely marine breezes throughout the year. The average temperatures range between between 20 and 30� C. The eastern side of the island benefits from much warmer weather than the east. The average water temperatures are around 25� C although you can expect the water to be slightly cooler on the north side of the island as this faces the Atlantic ocean. In Havana, the capital, you can expect to see Summer temperatures of 33� C. Between the start of July and the end of November you can get what's known as Cuba's hurricane season. Don't worry though they don't get them every year and the island is more likely to get a few storms.