Conditions at Cap Sim in October
October: The Autumn Turn-On
October is the month when Cap Sim re-enters the conversation. The average swell height rises to 5.9ft (1.8m) and the period stretches to 11.6 seconds - proper long-period groundswell. The directional spread is healthier too: NNW at 53 percent, NW at 27 percent, WNW at 4 percent, with W and WSW adding small but important contributions. The North Atlantic storm track is shifting south and the ocean is beginning to show serious energy. Ideal wind returns to 49 percent, with NE at 29 percent and NNE at 22 percent as the leading offshore directions. Onshore SSW/SW events are still possible, but they often pass through quickly and are followed by clearing NE winds.
Water temperature remains warm at 19.3°C, air averages 20.7°C, and rainfall begins to increase to 0.75 mm/day. October is one of the best value months: autumn power is arriving while the water still feels like summer.
Average Spot conditions at Cap Sim in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Cap Sim 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 Cap Sim for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cap Sim 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 Cap Sim.