Conditions at San Juan in November
November: Trade Winds Return With a Winter Bite
November marks the return of a more winter-like regime. Average size rebounds to 2-3ft (0.8m), the period sits at 6.0s, and the ENE component in the swell rises to 8% while E (46%) and ESE (38%) still lead. Crucially, the first genuine NE/ENE groundswell pulses become possible as cold fronts push off the US East Coast and into the Atlantic. These are the moments when the NNE-facing beach remembers how to show its shape, even if they are still infrequent.
Winds, however, turn less favorable: ideal time drops to 24%. E (32%), ENE (21%) and ESE (19%) dominate, and the return of stronger trade winds means more bump in the water. Air is 26.4°C, water 28.4°C, rain 5.15mm/day. November is a tantalizing month - the swell window is slowly starting to open, but you still have to fight the trades for a clean surface.
Average Spot conditions at San Juan in November
Swell history for November
Wind history for November
Swell quality
Analyze the groundswell consistency at San Juan 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 San Juan for your next trip in November.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at San Juan 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 San Juan.