- Home
- ...South America
Peru- Cabo Blanco
Conditions at Cabo Blanco in September
September: The Final Winter Push
September is the last full month of winter, and the ocean is still going hard. Average swell height is 6.2ft (1.9m), period 13.9s, and an incredible 91% of the swell comes from the SSW - the highest directional concentration of the year. There is 55% of the swell in the 5-6.5ft (1.5-2m) range and 24% in the 6.5-8ft (2-2.5m) range, so long-period, powerful waves are the norm. Wind remains the limiting factor, with ideal conditions at just 21%. S (43%) and SSW (37%) winds dominate, frequently at 20-30kph, and 7.5% of SSW readings reach 30-40kph. Surface conditions are rarely glassy, but when the trades ease for even a short window, the swell is so consistent that Cabo Blanco can turn on quickly. Water is 19.6°C, air 20.8°C, and precipitation stays at 0.04 mm/day as spring approaches.
Average Spot conditions at Cabo Blanco in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Cabo Blanco 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 Cabo Blanco for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cabo Blanco 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 Cabo Blanco.