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Conditions at Green Island in October
October: Swing Month Between Winter and Summer
October is a true swing month. Average size holds at 1.6m (5ft), but the average period shortens to 8.3s and ideal wind drops to 43 percent. The offshore component is still useful at 30.8 percent, led by NNW at 12.3 percent, but the trade-wind tendency starts to reappear with NE and ENE combined pushing past 24 percent. Good SSE and S swells remain common - 17.3 and 13.3 percent respectively - so there are plenty of waves, just less consistency in quality. Water temperature warms to 17.9°C, air averages 16.8°C, and rainfall is moderate at 2.59 mm/day. Dawn patrols with NW/NNW wind and fresh S swell are the ones to chase.
Average Spot conditions at Green Island in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Green Island 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 Green Island for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Green Island 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 Green Island.