Conditions at Marinaretti in September
September: First Autumn Whispers
September is a transition month with subtle signs of life. Average swell height is still modest at about 2ft (0.6m) and the period is only 4.7s, but the 'ideal wind' score inches up to 15% and the overall energy begins to shift. The S/SSW/SW window contributes around 27% of the swell rose, and about 3% of the time delivers surf above 3ft (1m) from the good directions.
The weather patterns are starting to break down. Rain increases to 2.79mm/day, the air cools to 22.6°C, and water temperature remains warm at 23.4°C. The first autumnal lows crossing the Mediterranean bring the chance of modest S/SW windswell, but the wind distribution still favors ESE/SE thermal winds and afternoon W/SW sea breezes. Look for choppy but fun late-summer sessions, especially before frontal passages.
Average Spot conditions at Marinaretti in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Marinaretti 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 Marinaretti for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Marinaretti 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 Marinaretti.