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Conditions at Upper Trestles in November
November: Winter's Official Arrival at Lowers
November stacks the deck for quality. Average wave height sits at 3ft (0.9m), and the period shifts back to 12.8s as North Pacific groundswell becomes the primary driver. Swell energy is split between W at 36.5%, WSW 35.8% and SW 21.2%, giving Trestles a broad, powerful mix that can produce both walled A-frames and long Lowers corners. The 2-3ft (0.5-1m) class still leads, but the 3-5ft (1-1.5m) window expands and a meaningful 5-6ft (1.5-2m) component appears during bigger W pulses. The wind story is dramatic: ideal offshore flow jumps to 50%, with NE at 20.2% and NNE at 8.9% doing the heavy lifting. Onshore S/SW/WSW totals drop to about 25%. Water temp falls to 16.2°C, air averages 16.2°C, rainfall rises to 0.81 mm/day. November is a serious contender for the best month of the year.
Average Spot conditions at Upper Trestles in November
Swell history for November
Wind history for November
Swell quality
Analyze the groundswell consistency at Upper Trestles during November. 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 Upper Trestles for your next trip in November.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Upper Trestles for November. 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 Upper Trestles.