Conditions at Big Rock in October
October: A Tale of Two Monsoons
October is a transition month at Big Rock, and its quality depends entirely on which monsoon is in control. The wind rose becomes more balanced: NE/ENE/NNE flow represents about 30% of the observations, while SW/WSW/W offshore flow still appears frequently enough to push ideal wind time to 43%. Swell direction is a mix of SSE/SE and E/ESE/ENE, giving this spot more of its preferred east-side directions than at any time since spring. Average height drops slightly to 0.8m (2.6ft) and period is 8.6s, so the waves are smaller but a little cleaner when the wind cooperates. Water temp remains up at 29.5°C, air temp at 27.3°C, and precipitation jumps to 7.94mm/day with the onset of the northeast monsoon. October is a gamble but offers some of the best E/ESE swell opportunities of the year when the SW wind hangs on.
Average Spot conditions at Big Rock in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Big Rock 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 Big Rock for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Big Rock 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 Big Rock.