Conditions at Ponta Preta in September
September: The Ocean Stirs Back to Life
September is the hinge month between summer lull and winter swell. The average height stays modest at 1.4m (4-5ft), but the period climbs to 9.0s, and the waverose shows a more balanced mix: NNE 54.8%, NE 17.2%, N 12.1% and NNW 7.0%, with a hint of ENE/E energy from tropical systems. The wind is still summer-friendly, with NE and NNE nearly equal at 32.2% and 31.8%, and 35% of the month classified as ideal. Water temperature peaks at 27.0°C, while average air temperature of 26.4°C and 1.40mm/day precipitation reflect the warm humid pattern. The surf is small but gradually gaining length and power, making September a promising pre-season month for the first signs of autumn groundswell.
Average Spot conditions at Ponta Preta in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Ponta Preta 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 Ponta Preta for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ponta Preta 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 Ponta Preta.