Conditions at Middles in December
December: Winter Storms Deliver
December is statistically tied for the biggest month of the year, with average swell height at 1.9m (6.2ft) and period at 9.8s. The source is a mix of ENE (37.7%), NE (31.3%), NNE (12.4%), N (2.7%), and NNW (2.2%). The winter north and northeast swells are key: when a strong low pressure system spins up off the East Coast, Middles can see its most powerful and lined-up waves of the year. The catch is the wind. ENE (42.8%) and E (30.1%) dominate, leaving ideal wind at only 15%. But the sheer amount of swell and the improving north angle make December a month to watch the charts closely. Water temp is 27.3°C, air temp is 25.5°C, and rain is 2.37 mm/day.
Average Spot conditions at Middles in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Middles 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 Middles for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Middles 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 Middles.