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Conditions at Topanga Beach in December
December: Prime Time
December is the cleanest month of the year at Topanga, with ideal wind 60% of the time - the highest mark on the calendar. Average swell height is 0.8m (2.6ft) and the period is a strong 12.4s. The swell mix is more west-heavy than the previous month: W 53.6%, WSW 29.5%, SW 10.4%, WNW 2.7%, and SSW 2.5%.
Most waves arrive in the 0.5-1m (2-3ft) range, but there are plenty of 1-1.5m (3-5ft) sets from W and WSW. Northerly winds are the norm - NNE (20.2%), NNW (15.1%), N (11.2%), NW (6.5%) - producing glassy, lined-up conditions. Air temps average 13.3°C, water temp sits at 14.4°C, and precipitation is 2.30 mm/day. For surfers willing to brave the winter chill, December delivers Topanga's most consistent quality.
Average Spot conditions at Topanga Beach in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Topanga 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 Topanga Beach for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Topanga 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 Topanga Beach.