Conditions at Boilers in December
December: Peak Season Showdown
December matches January for size and power. The average swell is 7ft (2.1m) with a 12.9s period; ideal wind is 45%. The distribution broadens more than any other month: NNW 31.7%, NW 27.9%, WNW 12.0%, and 1.9% from W, along with small contributions from WSW and SW. These are the months when a true south-west pulse can hit Boilers and turn it into a heavy, barrelling reef.
Wind is a bit more mixed than mid-winter: N 14.1%, NNE 14.4%, NNW 17.6%, plus a noticeable share of SE/S/SW components on the backside of passing lows. You have to pick the windows. Air temp 17.4°C, water temp 17.6°C, precipitation 1.10mm/day. For big-wave hunters, December is as good as it gets.
Average Spot conditions at Boilers in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Boilers 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 Boilers for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Boilers 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 Boilers.