The Bahamas are in the Atlantic Ocean and water is chilly in January (73-74 avg), and daytime high temps the lowest of the places on your list. If you go south in the Caribbean you can find better averages. Aruba, for instance, averages a high of 85 in January, with warmer water temps (77-80).
The weather in the BahamasThough this Caribbean territory does not experience winter, months like January tend to be cooler than most with lows of 63°F at night. Highs in January are typically around 79°F during the day.
Depending on the air temperature trends, the water will cool down or warm up in a matter of days. Of course, the water temperatures on the offshore reefs are not as drastic. If you are traveling to the Bahamas during the winter months, you can expect the water temperatures to be around 74 degrees Fahrenheit.
Because of the tropical climate, you can fish, dive and snorkel year-round. You also can comfortably swim in the ocean, as water temperature in The Bahamas rarely dips below 72 degrees (22 degrees Celsius) near the shorelines.
Winter is the best time to go to The Bahamas. In December, January, and February, average temperatures in Nassau hover around 73? (22.7?) with highs reaching a comfortable 81? (27.2?). Winter is the dry season, with rainfall of two inches (50mm) per month. Take advantage of the balmy weather to explore.
According to the Atlantis Bahamas statistics, August is the hottest month of the year, with an average temperature of 84°F, while January is usually the coldest, with an average of 72°F. Rainfall is highest in August, while the driest month is January.
Geographically, the Bahamas is located in the Atlantic Ocean, while the majority of other Caribbean territories are located in the Caribbean Sea. Although both are considered warm-weather destinations during the summer months, the Bahamas becomes more temperate in the winter.
Daytime essentials include t-shirts, camisoles, sarong and shorts as most people spend their time on the beach. Don't forget sunhat and sunglasses too, plus good sunscreen (we love the Riemann P20 range for 10 hour protection).
Most days are warm enough to swim and snorkel. The first week in December is usually the nicest weather of the year -- not too hot and mostly sunny skies. Once in a while, a cold front reaches us that early, but not too often.
The best time of year to visit is from December to May. Temperatures at this time are between 21 to 24 25°C (70-75 F), and the risk of tropical storms is low. Swimming year round is also possible however, because seawater temperatures usually stay above 25°C (80 F).
What you can expect. Take an exciting boat ride to three islands near the mainland in Nassau, Bahamas! See Gilligan's Island from the opening scene of the popular sitcom. Swim with turtles at a nearby island and then explore the beautiful reef covered with vibrant, colorful exotic fish and coral life.