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Conditions at Huntington Beach in December
December: Peak Season, Peak Consistency
December is the zenith of the Huntington surf calendar. With a 12.3s period and an average swell height of 0.8m (2.5ft), it might not look big on paper, but the quality and consistency are unmatched. The swell-direction mix is classic winter: W (43%), WSW (33%), SW (16%), with a dash of SSW (4%). That's a powerful groundswell mix that wraps efficiently into the southwest-facing beach. The wind stats are the best of the year: ideal offshore flow (NE 18%, ENE 10%) occurs 51% of the time, while onshore SW/WSW flow is just 25%. Morning offshore winds groom the long-period lines into glassy, workable walls, making the pier genuinely fun. Expect 0.5-1m (2-3ft) averages but with plenty of 1-1.5m (3-5ft) sets, and the occasional 1.5-2m (5-6ft) pulse when a strong low digs in. Water sits at 14.8°C (58.6°F), air at 14.8°C (58.6°F), with 1.86 mm/day of rain-good for keeping swell runs active.
Average Spot conditions at Huntington Beach in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Huntington 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 Huntington Beach for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Huntington 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 Huntington Beach.