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Conditions at Itacoatiara in October
October: Transitional Mix and Trade Wind Battle
October brings a mix of late-winter swell and increasingly stubborn trade winds. The average swell height eases to 4ft (1.3m) and the period drops to 10.0s. The directional spread is still south-heavy: SSE at 26.3%, S at 22.5%, SE at 21.2%, and ESE at 19.2%, but true SSW is only 3.7%. So you get waves, but not as many in the perfect spot-south window. This is a difficult wind month: ideal wind scores only 47%, as ENE hits 23.5%, E 21.6%, and ESE 9.6%, with more 20-30kph pulses. When E/ENE winds blow hard, the surf gets sideshore and lumpy; when a front breaks the pattern and winds clock to the north or northwest, Itacoatiara can still fire on 3-5ft (0.9-1.5m) surf. Air is 22.7°C, water is 20.3°C, and seasonal rains return at 3.51 mm/day.
Average Spot conditions at Itacoatiara in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Itacoatiara during October. 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 Itacoatiara for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Itacoatiara for October. 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 Itacoatiara.