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Conditions at Cat Bay in August
August: The Biggest Swell Of The Year
August brings the peak of the Southern Ocean storm train. Average swell height reaches 1.7m (5.6ft), the highest of the year, with a 12.8s average period. WSW swell is enormous at 23.1%, SW at 36.1%, and W at 9.6%; nearly 45% of all swells are 1.5m (5ft) or greater, giving Cat Bay more raw power than any other month. Yet the offshore wind percentage is stuck at a bleak 17%, matching July's lowest mark. NNW is again the dominant wind at 23.9%, with NW at 12.0% and WNW at 11.4%, essentially a constant onshore assault. If you can catch a rare S/SW offshore window, the waves will be well overhead, dense and hollow; otherwise, August is a reminder that size means little without the right wind direction.
Average Spot conditions at Cat Bay in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Cat Bay during August. 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 Cat Bay for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cat Bay for August. 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 Cat Bay.