Osbourne • Statistics for October

October: Atlantic Storms Re-Ignite the Swell

October is arguably the most reliable surf month of the year at Osbourne. The average swell height rises to 4-5ft (1.4m), the average period holds at 8.2s, and the North Atlantic storm track begins to churn out consistent groundswell. The direction distribution becomes beautifully mixed: SE (12.9 percent), SSE (11.2 percent), S (11.5 percent), SSW (14.4 percent), and SW (10.7 percent) all show significant energy, while the favorable E-SSE window stays near 37 percent. This means there is a much better balance between size and direction. Winds are strong and mostly favorable: W (9.7 percent), WNW (9.6 percent), NW (8.3 percent), and NNW (9.9 percent) combine for a solid offshore component, though SW (11.1 percent) also makes its presence felt. Ideal wind drops to 28 percent because of the overall stronger synoptic flow. Water temperature falls to 12.0°C, air temperature averages 11.8°C, and precipitation ramps up to 4.06 mm/day. October delivers a potent mix of surfable size, cleaner angles, and still-relatively-warm water-an excellent window to catch Osbourne firing.