Weather in Cuba is hot and humid pretty much all year long, and the island’s location in the Caribbean means it doesn’t experience the same drastic seasonal changes you might expect elsewhere. This is a mild subtropical climate, with the heat mitigated by the island's location along the Tropic of Cancer and by the fact that it is a narrow island stretching east/west. This means northeasterly trade winds and sea breezes are prevalent. The temperature is relatively steady year-round, so the weather in Cuba is essentially divided into two distinct periods: the wetter season from June to November and a drier season the rest of the year.
Summer in Cuba: During the summer, the Cuba weather forecast will call for temperatures from 75 degrees to 80 degrees Fahrenheit pretty much every day. It is warmer in the eastern part of the island, though the city of Havana, located on the northwestern coast, can be quite hot in the summer. Combine these balmy temperatures with the 77-degree water temperatures off the island's beautiful beaches, and you have the makings for idyllic vacations.
Fall in Cuba: In addition to the temperature, another factor of the weather in Cuba is humidity and rainfall. There can be downpours anytime during the year, but most rainfall occurs during the summer and autumn, with September and October traditionally getting the most precipitation. The western part of the island receives the most rainfall, which is one of the reasons this is the most fertile area in the country.
Winter in Cuba: Average temperatures in the winter hover around 70 degrees, though on rare occasions it can get as low as 50. Bring a light rain jacket anytime of year you visit, and a heavier jacket for the winter.
Spring in Cuba: The precipitation in Cuba is lowest in March and April, making the spring typically the driest season in the country. Temperatures are still very comfortable and the humidity remains about average. As the days warm up, it’s still good to have a sweater with you as some establishments have the air-conditioning set quite low; this is even true on the Viazul buses.
Hurricane season: If you're visiting from June to November, you should keep tabs on the Cuba weather forecast in order to be aware of hurricane warnings. The island nation has a fairly efficient and effective hurricane warning system and there is good response when a hurricane is predicted.