Conditions at Castaways in September
September: The Monsoon Breathing Its Last
September is the tail end of the southwest monsoon, and the surf still runs with considerable energy. Average height is 1.6m (5ft) and the period remains a respectable 11.0s. The SSE and S sectors again trade places - SSE 46%, S 34% - meaning the perfect south swell window is wide open. But as with the preceding months, wind is the limiting factor. Ideal wind moves up only to 19%, and WSW and W winds persist. There are glimpses of change, however; the occasional NW pulse sneaks in, hinting at the shift to come. It's a month of waiting for gaps in the monsoon as much as for quality glass.
Average Spot conditions at Castaways in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Castaways 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 Castaways for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Castaways 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 Castaways.