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Conditions at Cloud 9 in November
November: Big Swells, Building Trade Winds
November sees the northeast monsoon take over once more, and Cloud 9 starts to fire on size. Average swell height rises to 4ft (1.3m), the period remains solid at 9.9s, and the NE swell direction dominates with 61% of observations-a full third of those falling in the 3-5ft (1-1.5m) class. ENE (24%) and NNE (9.5%) keep the energy window well covered, and on the best event days 6.5-8ft (2-2.5m) sets roll through. The trade-off is wind: NE/ENE trades build back to onshore and ideal offshore wind drops to 12%, so the surf often arrives with lumpy, windblown texture. Still, when a cold front from southern China or a late-season typhoon disrupts the pressure gradient and swings the wind to S/SW, the reef absolutely lights up. Water temperature is 28.9°C, air 28.0°C, and rainfall increases to 12mm/day.
Average Spot conditions at Cloud 9 in November
Swell history for November
Wind history for November
Swell quality
Analyze the groundswell consistency at Cloud 9 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 Cloud 9 for your next trip in November.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cloud 9 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 Cloud 9.