Conditions at Cables in September
September: Spring Turn - Size Holds, Windows Tighten
September keeps the winter swell alive while hinting at change. Average height remains solid at 2.6m (8.5ft) and period stays at 13.0s. The direction distribution is still excellent, with SW at 35.9%, WSW at 14.3% and W at 2.0%; most surf falls into the 1.5-2.5m (5-8ft) envelope, with a healthy sprinkle of more serious 2.5m+ lines. The Southern Ocean is still producing long-period groundswell, and the reef is holding plenty of size.
Windows tighten as ideal wind drops to 33%. The wind rose becomes spring-like: SSW (9.9%), S (9.0%), WSW (9.5%) and W (8.9%) all compete with the offshore side of the compass (E 6.5%, ESE 7.2%, SE 6.6%). Frontal passages are more frequent, so you need patience and a flexible schedule. Rain averages 2.56mm/day, water is at the annual minimum of 18.0°C and air temperatures sit near 15.8°C. Chase the days after a cold front when a strong high pressure ridge brings easterly offshores and September can still deliver world-class surf.
Average Spot conditions at Cables in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Cables 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 Cables for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cables 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 Cables.