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Conditions at Golf Course Reef in December
December: Cyclone Season and Summer Chop
December rounds out the year with typical summer conditions. Average wave height is 5-6ft (1.7m), period is a modest 8.0s, and ideal wind sits at just 26%, the lowest of the year. The swell direction is very favorable in percentage terms - NE and ENE dominate - but that same NE quadrant is blowing onshore around 29% of the time. Trade-wind chop becomes the default texture, and the reef rarely gets the clean, groomed surfaces of winter.
The exception is the tropical cyclone season: when a cyclone tracks down the Coral Sea, it can deliver much larger, longer-period E/NE swell. Air temps warm to 19.9°C, water to 20.0°C, and rainfall is 2.45 mm/day. December is all about hunting the rare cyclone swell with an offshore southwest wind change.
Average Spot conditions at Golf Course Reef in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Golf Course Reef during December. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Golf Course Reef for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Golf Course Reef for December. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Golf Course Reef.