Conditions at Yerbabuena in October
October: The Atlantic Roars Back
The North Atlantic roars to life during October, and Yerbabuena starts to feel the change in the water. Average swell jumps to 3.6ft (1.1m) and period to 9.4s, but these are only averages; the first big autumn low-pressure systems of the season can quickly deliver much larger groundswell. The wave rose becomes more balanced: WNW drops to 38.3%, W increases to 19.0%, and west-southwest energy from southward-moving fronts becomes more common. S/SW swell registers about 1.4% of the total, more than it has in months, and those are the days to circle on the calendar.
Offshore wind windows open up again at 30% ideal. NNW at 6.0% and NW at 5.7% are present but not dominant, so you still need to be flexible with your surf-session timing. Strong E/ESE winds still plague the afternoons at 41% combined, but the onset of autumn cold fronts often brings a clean change out of the northwest. Water temp is 19.6°C, air 20.1°C, and rainfall increases to 2.57mm/day. October delivers real hope and the first proper surf of the season.
Average Spot conditions at Yerbabuena in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Yerbabuena 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 Yerbabuena for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Yerbabuena 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 Yerbabuena.