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Conditions at Cottosloe in October
October: Spring Swing - Big Swell Mixed with Unsettled Winds
October brings a noticeable shift toward spring storminess. Average swell remains respectable at 2.2m (7.2ft) with a 12.8s period, but the direction starts to focus more on SW (48.7%) and SSW (9.5%), with WSW at 12.2% and W at 1.3%. The ideal wind percentage falls to 30%, and the wind distribution shows a strong SSW component (16.7%) and S (13.0%) - these cross-offshore breezes can create lumpy conditions. However, the increasing SW wind actually helps groom the SW swell when it's not too strong, and the water temp begins its slow climb from 18.5°C. Air reaches 17.1°C and rainfall drops to 1.11 mm/day. It's a period of dynamic weather; you'll have to read the synoptic charts carefully to score the cleanest days.
Average Spot conditions at Cottosloe in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Cottosloe 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 Cottosloe for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cottosloe 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 Cottosloe.