The average monthly temperatures in Martinique are surprisingly constant, with little seasonal variation. This stability is due to the refreshing breezes that blow from the northeast, known as the trade winds (Les Alizés). The dry season is December through May, while June through November is the more humid and damp season. However, rain showers can occur at any time throughout the year.Average air temperatures in coastal regions range from 72ºF to 86ºF (22ºC - 30ºC), while the inland areas average from 66ºF to 81ºF (9ºC - 27ºC). The warm coastal waters average between 68ºF and 74ºF (20ºC and 23ºC) all year. Hurricanes may occur any time from June to the end of November and are most common in September.