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Conditions at Ilha dos Lobos in September
September: Size Is There, But Wind Gets Tricky
September boasts the largest average swell height of the year at 1.8m (6ft), with significant energy across ENE (18.9%), E (15.7%), ESE (13.9%), SE (13.6%), SSE (12.0%) and S (10.4%). The larger height classes are well populated, particularly in ENE and E, where 2-2.5m (6.5-8ft) waves show up frequently. Period remains respectable at 9.1s, so there is plenty of raw power on offer.
The problem is wind. The spring transition brings the NE trades back with a vengeance -- NE (20.3%), ENE (10.6%) and NNE (12.1%) are dominant -- and ideal wind drops to 29%. That often means a lot of 6ft+ swells with onshore chop. But when a frontal system dives into the South Atlantic and turns the breeze offshore, September can produce some of the heaviest, most spectacular sessions of the year. Air temp 15.8°C, water temp 17.1°C.
Average Spot conditions at Ilha dos Lobos in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Ilha dos Lobos 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 Ilha dos Lobos for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ilha dos Lobos 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 Ilha dos Lobos.