Winter (June-Aug) is high season in Queensland; the water can be chilly -- at least to Australians -- but its temperature rarely drops below 72°F (22°C). April through October is peak visibility time for divers. Summer is hot and sticky across the state. In North Queensland (Mission Beach, Cairns, and Port Douglas), the monsoonal Wet season is from November or December through March or April. With heavy rains, high temperatures, extreme humidity, and cyclones, it deserves its alternative name: the "Green" season.

When to Visit the Reef -- April through November is the best time to visit the Great Barrier Reef, although southeast trade winds can sometimes make it a tad choppy at sea. December through March can be uncomfortably hot and humid, particularly as far north as the Whitsundays, Cairns, and Port Douglas. In the winter months (June-Aug), the water can be a touch chilly (Aussies think so, anyway), but it rarely drops below 72°F (22°C).

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.