The dry season runs from December to mid-April. This is the most comfortable time to visit: temperatures hover around 27°C (80°F), humidity is lower, and rainfall is minimal. It is also peak season — flights and accommodation are more expensive, and the beaches are busier.
The wet season runs from June to November and coincides with the Atlantic hurricane season. Martinique is not in the main hurricane belt and direct hits are rare, but heavy rain is common, particularly from August to October. The heat and humidity increase. On the upside, prices drop noticeably and the island is far less crowded. The rain usually comes in short bursts rather than all-day downpours, and the vegetation is at its most lush.
May is a shoulder month — the rains are beginning but not yet heavy — and can be a good compromise if you want reasonable weather without peak-season prices.
Carnival (Vaval) takes place in the days before Ash Wednesday, usually in February. It is the island's biggest celebration, with four days of costumed parades, music, and street dancing. Fort-de-France and other towns fill up; accommodation should be booked well ahead. The Carnival culminates on Ash Wednesday itself, when the effigy of Vaval (King Carnival) is symbolically burned.
Tour des Yoles Rondes is a traditional sailing race held in late July and early August. Yoles rondes are traditional fishing vessels sailed by large crews who use their body weight to balance the boat; the races are spectacular to watch from shore. The race visits a different port each day, with celebrations and music each evening.
Chanté Nwel in December is a traditional gathering where communities sing Caribbean Christmas carols (in Creole) in the streets, accompanied by drums and other instruments. It is informal and widespread throughout the island.
Sea temperature stays between 27°C and 30°C (80–86°F) year-round, so water sports are possible at any time.