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Conditions at Nine Palms in December
December: The Most Consistent Clean Window of the Year
December puts an exclamation point on the surf year. The ideal wind statistic hits 71%, the highest of any month at Nine Palms. NNW winds dominate a remarkable 32% of the time, with NW at 12% and N at 11.5%; these are predominantly light to moderate offshore and cross-offshore flows that keep the wave face clean and rippable. Swell energy comes mainly from S at 40.5% and SSW at 28.8%, with a small but notable SSE contribution at 5.8% and more northern-hemisphere N and NNW swell appearing than in summer. Average swell height is around 2.5ft (0.8m) with an average period of 11.9s, so expect fun-sized, groveling-to-waist-high surf-cleaner and more consistent than large.
Air temperatures average 22.6°C and water temperature remains pleasant at 24.4°C, with precipitation low at 0.38mm/day. December is a textbook month for logging sessions on a longboard or high-performance shortboard in small, clean conditions. The lack of oversized waves is offset by the highest probability of offshore, organized surf in the entire year.
Average Spot conditions at Nine Palms in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Nine Palms 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 Nine Palms for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Nine Palms 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 Nine Palms.