Conditions at Turtles in September
September: Late Season Power with a Southerly Peak
September holds onto the winter swell trains: average wave height is 2.1m (6.9ft) and the average period is 14.0s, maintaining that very powerful, long-period feel. The direction is heavy on S (55.5 percent), with SSW (18.7) and SSE (9.9) secondary - again, more south than the ideal west-southwest pulse. The trades remain strong and offshore, with SE (57.6) and ESE (33.4) accounting for over 90 percent of the wind, but stronger speeds cut the ideal surf window to 56 percent. Look for mornings with lighter SE flow; those afternoons can get chunked out. Rain remains low at 2.72 mm/day, air temperatures cool slightly to 25.6°C, and water temperature drops to 26.9°C - the coolest water of the year, but still tropical. September rewards surfers who know the breaks and pick their moments.
Average Spot conditions at Turtles in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Turtles 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 Turtles for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Turtles 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 Turtles.