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Conditions at Bathtub Beach in December
December: Winter Rhythm and Offshore Windows
December closes the year with familiar winter rhythm. Average swells sit at 4ft (1.2m) with periods around 8.0s, and the NE, ENE, and NNE directions continue to feed the east-facing reef. The notable shift is in the wind: offshore frequency bumps to 25 percent, with NNW winds at 12.5 percent and NW at 7.3 percent. These are the clean, west-quadrant flows behind strong cold fronts that groom the incoming east swell and give Bathtub Beach its best shape. The winter storm track is fully active, so the swell is not only frequent but also capable of delivering punchy, powerful sets. Water temps settle at 23.8°C, air temps average 21.6°C, and precipitation is at its driest at 2.11 mm/day. Winter is exactly where Bathtub Beach wants to be.
Average Spot conditions at Bathtub Beach in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Bathtub Beach 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 Bathtub Beach for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Bathtub Beach 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 Bathtub Beach.