Conditions at Backdoor in November
November: Building Toward Prime Time
November is a serious winter month in the making. Average swell height climbs to 2.4m (7.9ft), and the average period sits at a strong 11.4s. The swell direction mix is now much more evenly distributed between trade-wind swells and north ground swell: ENE 14.4%, NE 13.1%, NNE 12.7%, NNW 12.1%, N 5.9%. While no single direction dominates, the critical point is that the NNW/N/NNE window is supplying a large share of the energy, and those longer-period, better-aligned swells are what get Backdoor firing. Trade winds still blow strongly (E 35.4%, ENE 30.4%), but 21% of the time the wind goes offshore. With water temperature at 25.9°C, air temperature at 24.7°C (min 21.2°C, max 28.5°C), and precipitation at 2.22 mm/day, the North Shore is getting wetter, cooler, and more powerful as winter approaches.
Average Spot conditions at Backdoor in November
Swell history for November
Wind history for November
Swell quality
Analyze the groundswell consistency at Backdoor 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 Backdoor for your next trip in November.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Backdoor 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 Backdoor.