The Bahamas

• The Bahamas enjoys a tropical maritime climate with warm temperatures year-round, typically hovering between 24°C and 29°C (75°F to 84°F).
• A subtle north-to-south temperature gradient exists, with northern islands like Grand Bahama feeling slightly cooler in winter than the far southeastern cays.
• The dry season from November to April delivers the most comfortable combination of mild heat, lower humidity, and sunny skies.

The Bahama archipelago stretches across nearly 800 kilometres of the Atlantic Ocean, straddling the Tropic of Cancer. This position gifts the islands a classic tropical marine climate, where temperatures remain pleasant throughout the year and extremes are rare. Even during the coolest months, daytime highs generally reach a comfortable 24°C to 26°C (75°F to 79°F), while summer afternoons typically climb to around 30°C to 32°C (86°F to 90°F). The surrounding shallow, turquoise seas and persistent northeast trade winds work together to moderate the heat, preventing the kind of oppressive stagnation found in some continental tropical destinations. As indicated by the WeatherBox temperature map, the entire country sits within a narrow warm band, yet small shifts are visible when you look closely at seasonal averages across the island groups.

Geography plays a gentle but noticeable role in shaping these temperature patterns. The Bahamas is overwhelmingly low-lying, its highest point reaching just 63 metres on Cat Island, so altitude offers no cooling relief. Instead, the main regional variation comes from latitude. The northernmost islands, including Grand Bahama, Abaco, and the Berry Islands, experience slightly cooler winter nights, with occasional predawn lows dipping to around 17°C (63°F) in January. By contrast, the southern islands such as Inagua and Mayaguana often retain a warmer nighttime cloak, rarely falling below 20°C (68°F) even in mid-winter. The WeatherBox temperature map reveals this gentle thermal slope from northwest to southeast. Seasonally, the divide is more about moisture than temperature. The wet season runs from May to October, when high humidity, frequent afternoon showers, and the potential for tropical storms build over the warm Atlantic waters. The dry season, by contrast, brings fresh breezes, lower humidity, and gloriously clear skies for spotting dolphins around the Exuma Cays.

When you plan a visit, your comfort and the character of your trip will be shaped by this seasonal rhythm. The dry season, roughly November through April, is widely regarded as the most favourable window. Daytime temperatures sit in the sweet spot of 24°C to 28°C (75°F to 82°F), making it ideal for lazy beach days on Harbour Island’s pink sands or snorkelling the Andros Barrier Reef without feeling overwhelmed by heat. This is high season for a reason, and light breathable fabrics, sun protection, and a hat are all you really need. From May onward, the humidity intensifies and afternoon downpours become more frequent, though mornings often remain sun-drenched. The summer and early autumn months also sit within the hurricane season, which can disrupt travel plans. If you pack a rain jacket and stay flexible, you can still find uncrowded resorts and warm seas. Overall, The Bahamas offers a reliably inviting warmth that peaks in freshness from late autumn through spring. To compare temperature patterns across different cays and find the ideal time for your visit, explore the detailed maps and weather charts here at WeatherBox.

• The Bahamas enjoys a classic tropical savanna climate (Aw), with a sun-drenched dry season and a rainier, more humid summer.
• Prevailing northeast trade winds help temper the year-round warmth, but flat, low-lying limestone islands offer no cooling elevation.
• Warm ocean shallows keep air temperatures mild in winter, while the Atlantic hurricane season poses a distinct risk from late summer into autumn.

The Bahamas stretches across sparkling Atlantic shallows just north of the Tropic of Cancer, yet its climate feels purely tropical thanks to the warming influence of the Gulf Stream. The entire island chain falls under the Köppen tropical savanna climate (Aw) classification, meaning temperatures stay consistently warm but rainfall splits into two distinct seasons. The dry season runs from November to April, bringing bright, mostly clear days and refreshing northeast trade winds. The wet season from May to October sees higher humidity and frequent, brief afternoon downpours, often in the form of passing tropical waves. Daytime highs typically range from 27°C to 32°C (81°F to 90°F) year-round, with overnight lows rarely dipping below 17°C (63°F) even in the coolest months on the northern islands.

Because the islands are low coral and limestone platforms with no significant mountains, the climate varies little across the archipelago. Instead, what shapes your experience are the constancy of the trade winds and the minor seasonal differences between the drier northern and more arid southern islands. The northwest, including Nassau and Grand Bahama Island, can occasionally feel the edge of North American cold fronts between December and February, bringing a few breezier, slightly cooler days ideal for strolling the pastel-hued streets of Nassau. The southern Out Islands, such as Great Inagua, lie deeper in the tropics and stay warmer and even sunnier during the dry season. Everywhere you go, the shallow sun-warmed waters surrounding endless cays and sandbars create that trademark Bahamian seascape of dazzling turquoise flats. Steady trade winds make the Abacos and Exumas world-renowned sailing grounds, where the breeze often fills sails from November through July.

For travellers seeking gloriously clear skies and low humidity, the months between December and April are the optimum window. This is when the legendary pink sand beaches of Harbour Island and the calm shallows of the Exuma Cays Land and Sea Park glisten under brilliant sunshine, and the weather feels most comfortable for exploring. The wet season brings higher humidity and the chance of afternoon thunderstorms, and the peak hurricane season from August to October can disrupt travel plans with heavy rain and strong winds. If visiting during summer, pack light, breathable fabrics, ample sun protection, and a light raincoat for quick-drenching showers that often pass within an hour. Check our WeatherBox charts for detailed monthly averages of rainfall and sunshine hours to pick your ideal stretch of calm seas and blue skies. Whether you plan to drift over coral gardens or simply lounge on sun-baked sands, our Köppen-based climate maps give you the clearest picture yet of when the islands truly shine.