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Conditions at Aramoana in December
December: Peak NE Summer Swell
December is statistically the best month for Aramoana's preferred swell direction, with the N through ENE quadrant supplying over 20% of all wave energy - the highest of the year. The trade-off is that average wave height drops to 5-6ft (1.7m) and period shortens to 9.9s, putting it just shy of the long-period bracket and giving the surf a punchy, locally-forced feel. ENE is the standout direction, producing plenty of fun-sized 1-1.5m (3-5ft) waves and some bigger ones. The downside is a powerful NE sea breeze that blows through the afternoon, making clean conditions rarer; ideal offshore wind sits at 22%. Air temps are mild at 12.6°C, water temp is 12.8°C, and precipitation averages 2.14 mm/day. Score a morning SW offshore with an ENE pulse in December and Aramoana is genuinely firing.
Average Spot conditions at Aramoana in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Aramoana 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 Aramoana for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Aramoana 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 Aramoana.