Conditions at Canoes in September
September: Autumn Stirrings
September is where the seasonal tide finally turns. The average swell height drops to its annual low of 4.5ft (1.4m), but the ocean's character begins to shift. E and ESE still lead the swell spectrum (31.1% and 20.8%), yet the tropical and south components begin to reassert themselves: SE jumps to 12.4%, SSE to 9.9%, and S/SSW/SW/WSW collectively reach 7.6% - a welcome sign for a reef starved of true southerly energy. The trades also loosen their grip, with ENE at 74.0% and a growing share of lighter winds; ideal conditions improve to 17%. At 27.0°C, the ocean is at its warmest, air temps peak at 26.2°C on average, and rainfall stays modest at 1.34 mm/day. September is the classic south shore sleeper month: the first real swells of the fall start to wrap into Canoes, the surface is still clean, and the lineup is quiet after the summer crowds.
Average Spot conditions at Canoes in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Canoes during September. 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 Canoes for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Canoes for September. 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 Canoes.