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Conditions at Playa Rio Mar in September
September: Hurricane Season Energy and Stormy Wind Shifts
September delivers the most concentrated SSW swell of the entire year: 97.5 percent of the swell arrives from the SSW, and the favorable southern-hemisphere directions make up over 99 percent of the wave rose. With an average period of 12.4 seconds, the base rhythm is powerful. However, this is also the peak of the rainy season and tropical cyclone season, and the wind rose becomes more chaotic. Onshore WSW/SW flow climbs, cutting the ideal-wind percentage to 60 -- the lowest since spring. Rain peaks at 9.21 mm/day, air temperatures stay around 26.2°C, and water temperatures remain very warm at 29.1°C. The good news: when tropical cyclones or strong Southern Ocean storms send SSW swell, there's a chance of 3 to 5 foot (1 to 1.5m) waves on top of the usual 2 to 3 foot (0.6 to 1m) baseline. The challenge is finding a window between rain squalls and onshore winds.
Average Spot conditions at Playa Rio Mar in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Playa Rio Mar 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 Playa Rio Mar for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa Rio Mar 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 Playa Rio Mar.