Conditions at Marinella in September
September: The Autumn First Whiff
September is where Marinella begins to wake up. Swell heights tick up to an average of 3-4ft (1.1m), periods stretch to 10.6s, and the first powerful autumn lows start to inject longer-period WNW/NW energy. The direction split remains NW-heavy-NW 53.8%, WNW 33.3%-but now there is a healthier mix: 24.1% of observations from NW are in the 0.5-1m range and 17.9% are 1-1.5m, with some 1.5-2m sets making the odd session genuinely fun.
Wind quality improves with 29% ideal offshore conditions, though the daily sea breeze still tries to wreck the afternoon. As high pressure begins to break down, the E/ESE/SE/SSE quadrants become more common and mornings are increasingly clean. Water temperature is still warm at 20.8°C, air averages 18.9°C, so a 3/2mm wetsuit is comfortable and the autumn transitions are some of the most enjoyable of the year.
Average Spot conditions at Marinella in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Marinella 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 Marinella for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Marinella 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 Marinella.