Mavericks seasonal overview
Mavericks, known for its powerful and often dangerous waves, offers the best surfing conditions during the winter months, particularly from November through February. During this period, ground swell dominates, with percentages ranging from 87% in November to 93% in January, ensuring consistent, high-quality waves generated by distant storms. The mean swell size peaks at 1.9m in January and February, dropping slightly to 1.8m in December, which is ideal for experienced surfers seeking challenging surf. Wind conditions are most favorable in January and December, with good winds occurring around 50% of the time, though February sees a dip in favorable winds (42%). Outside these months, wind conditions deteriorate significantly, with bad wind frequencies above 50% from March onward, peaking at 89% in July. Swell quality declines noticeably in spring and summer, with ground swell percentages dropping as low as 50% in June and wind swell becoming more prominent, leading to less predictable and generally smaller waves (1.0m–1.5m). September and October mark a transitional period, with improving ground swell (71%–82%) and marginally better wind conditions (21%–36%), but still fall short of winter’s consistency. For surfers targeting Mavericks’ legendary waves, the prime window is clearly winter, when large, clean ground swells and relatively manageable wind conditions combine to create world-class surf.
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Conditions at Mavericks in September
September at Mavericks generally delivers small to moderate surf, with an average swell height of 1.1m and a solid 12.9s period, indicating well-spaced, clean energy. The swell direction is predominantly from the W and WNW, contributing the majority of rideable waves (1-2.5m), with WSW and SW also providing smaller but consistent contributions. Wind conditions are favorable only 21% of the time, with light to moderate speeds (0-20kph) coming mostly from the NW, W, and WSW—though stronger WNW winds can create chop. Expect smaller, more manageable waves compared to winter, but with occasional overhead sets (1.5-2.5m) when W/WNW swells pair with lighter winds. Advanced surfers can still find quality rides, but it’s far from Mavericks’ famed massive winter barrels.
Average Spot conditions at Mavericks in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Mavericks during September. 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 Mavericks for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mavericks for September. 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 Mavericks.
