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Conditions at Johanna in October
October: Big Swell Meets the Spring Westerly Storm Track
October is the hinge between winter's giant swells and summer's fickle patterns. Average height remains solid at 2.7m (9ft), the period holds at 12.6s, and the swell direction swings back to a stronger SW component - SW 25.9%, WSW 14.4%, SSW 4.5%, W 2.2%. There is still plenty of muscular, long-period groundswell; you just have to work around the wind.
Ideal conditions settle at 25%, and the biggest issue is the strengthening westerlies: WSW and W winds combine for about 25% of the wind rose, while onshore S/SW flow also increases. The N through ENE offshore quadrant is around 16% of the wind rose, usually occurring during the passage of high pressure between fronts. Water temp is still cold at 14.2°C, average air temp warms slightly to 13.2°C, and rainfall backs off a little to 2.54 mm/day. October can produce epic, heaving days if you are willing to hunt for the transient N/NE windows.
Average Spot conditions at Johanna in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Johanna 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 Johanna for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Johanna 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 Johanna.