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Best Times to Visit Great Barrier Reef

The best time to visit the Great Barrier Reef is from June to October. This peak season offers some key advantages for travelers. Temperatures hover in the low 60s to mid-80s, and rainfall is uncommon, which means clearer waters and better diving conditions. Along with the ideal weather, these winter and spring months offer cheaper prices at hotels near the central and southern parts of the reef, but keep in mind that accommodations and diving excursions in Cairns tend to fill up quickly due to the influx of tourists to the region. Meanwhile, the area's low season (known locally as the wet or stinger season) takes place between November and May and brings more rain, resulting in poorer water visibility and an abundance of deadly box jellyfish.

Weather in Great Barrier Reef switch to Celsius/mm

Average Temperature (°F)

Average Precipitation (in)

Data sourced from the National Climatic Data Center

June-October

Balmy, 70- to 80-degree days, clear waters and refreshingly cool evenings are characteristic of the region's dry season. Temperatures are a little cooler during this period (after all, it is winter and spring in the Southern Hemisphere), but they rarely dip below the 60s. To be comfortable, plan on packing some warmer layers. Since this is prime diving season, expect to encounter crowds, especially in Cairns. You may also find higher room rates at hotels in Cairns, so book in advance. If you're looking for more elbow room and cheaper accommodation prices, head south to Rockhampton or Bundaberg.

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November-May

This is the Great Barrier Reef's wet season, with average daytime temperatures in the north hovering in the high 80s. Intermittent tropical downpours are common, meaning water visibility is blurred and conditions are muggy. The cloudy water not only poses a problem to divers, but it can also put swimmers in danger: Deadly box jellyfish roam the waters off of mainland beaches. To avoid any life-threatening stings, head to the southern part of the region (between the Capricorn Coast and Fraser Island), where temperatures are cooler and the water is safer. You can also rent stinger or Lycra suits to keep yourself protected while swimming. Hotel prices in Cairns are generally lower at this time, but vacationing Aussies flock to Queensland in summer and fall, so plan accordingly.

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