Live weather and forecasts of the Great Barrier Reef’s main regions Cairns Weather & Climate Cairns typically tropical, island-esque climate makes for a reasonably pleasant environment to holiday in for most parts of the year, with the weather rarely approaching what anyone would label truly “cold”. The temperatures are recorded as average maximums of (Celsius) 30 degrees and average minimums of (Celsius) 21 degrees. The Great Barrier Reef comes alive at this time of year with coral spawning and all the large pelagics make their way form the other side of the world to the Great Barrier Reef; Its the most perfect time of year for snorkelling, diving as the water is crytsal clear ; It's the big time season for catching Marlin and other famous reef fish. Great Barrier Reef Weather. Unprotected skin risks burning in less than 10 minutes. The average sea water temperature in Great Barrier Reef in December is 28.6° which is very warm and ideal for relaxing and swimming for the whole day. The danger of Australia’s Great Barrier Reef experiencing another catastrophic heatwave similar to the recent shocking event is twice as likely if global average surface temperatures hit 1.5°C above pre-industrial conditions. These temperatures are far removed from those records observed in Great Barrier Reef in the month of february with a maximum record of 101°F in 2019 and a minimum record of 70°F in 2013. Today the wave height in Great Barrier Reef does not exceed 1 meter (3 ft 3 in) and it is sea suitable for swimming. Global warming which makes the average temperature of the Great Barrier Reef rise will cause the ozone layer to become thin and even hollow. Great Barrier Reef sea surface temperature in summer Average water temperature in Great Barrier Reef in July is 24°C/75°F and therefore suitable for comfortable swimming. Coral reefs are not able to endure temperatures that plummet below 18 degrees Celsius. We’re often told that the sea temperature along the Great Barrier Reef (GBR) is increasing and that soon the coral will be bleached and the reef be destroyed. Over the course of the year, the temperature typically varies from 64°F to 84°F and is rarely below 59°F or above 88°F. We can extract data for the grid cells that cover the reef from NOAA’s “Optimal Interpolation” sea surface temperature data (see here). The least windy month in Great Barrier Reef is January when the average maximum windspeed is 25kmh and the average wind speed is 12kmh. In 2016, bleaching of coral on the Great Barrier Reef killed between 29 and 50 percent of the reef's coral. Rainfall in Great Barrier Reef in December The average total rainfall in Great Barrier Reef in December is 13.4cm and on average there are 18.2 rainy days in December making it a wet time to visit the beach. Off-Season is also known as ‘stinger season’ due to the increased abundance of stingers, which becomes a great obstacle in diving and many other aquatic activities in the Great Barrier Reef. According to the United Nations Environment Programme, between 2014 and 2016 the longest recorded global bleaching events killed coral on an unprecedented scale. The wettest month in Great Barrier Reef is April with 45.5cm of rain and March has the most days of rain with 22.4 days with some rain, Other than swimming and several aquatic sports, tourists can also participate in various other events during this time. Fresh breeze, lower temperature, absence of stingers, and low humidity mark the winter months of the dry season. Special swimming enclosures are provided at popular beaches to protect swimmers. This means that the … We can extract data for the grid cells that cover the reef from NOAA’s “Optimal Interpolation” sea surface temperature data (see here). The average day light hours per day in Great Barrier Reef in … The average temperature over the next 25 days in great barrier reef from this forecast is 31°C (88°F) . Great Barrier Reef Weather Weather & climate information for each main reef destination. The lowest daily average low temperature is 64°F on July 23. The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres (1,400 mi) over an area of approximately 344,400 square kilometres (133,000 sq mi). Summer, or the 'Wet' season, extends from November to April and refreshes the region with tropical downpours of an afternoon and occasional dramatic electrical storms. Remember: When swimming in Australia it is recommended you swim at beaches patrolled by Lifesavers and to swim between the flags. But it gets worse – the higher the temperature … Bleaching in the Great Barrier Reef. Need assistance? 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