The Bahamas enjoys a hot and sunny climate year-round, although June to October is considered the rainy season. It usually rains once a day, every day but only for short periods of time. June to October is also considered hurricane season. If you are planning a trip to the Bahamas during these months, consider taking out travelers insurance on the off chance a hurricane forms during your vacation.Air temperatures during the summer months range from 75-91°F (24-33°C) while water temperatures are approximately 88°F (31°C).If you enjoy getting the best deals and diving at uncrowded dive sites, book your trip from June to October. This is low season on Grand Bahama Island. Besides the sometimes stormy weather and the number of sharks present, diving in the Bahamas changes little from month to month. November to May is the dry season in the Bahamas. During these summer months, you can expect sunny, hot and mildly humid conditions. Air temperatures during the winter months range from 65-77°F (18-25°C) while water temperatures are 75-80°F (24-27°C).In addition to great topside conditions, November to May is also the best time for shark diving. Tiger sharks are present from October to January at Tiger Beach, and you’ll find Caribbean reef sharks at Shark Junction during the same months.However, November to May also represents high season for tourism in the Caribbean. So be sure to book early in order to get a good deal on accommodation and flights.