Lennox Head seasonal overview
Lennox Head is a consistent surf spot with year-round waves, but the best conditions for surfers typically occur between April and August. During these months, ground swell frequency increases (peaking at 32% in July), reducing reliance on wind swells, which are less powerful and organized. The mean swell size remains steady around 1.5m-1.6m, providing a good balance of size and rideability. Wind conditions also improve significantly in this period, with good winds (offshore or light cross-shore) occurring 29-39% of the time—highest from May to July—while bad winds (onshore or strong cross-shore) drop to their lowest levels (61-71%). Outside this window, particularly from November to February, surf quality declines as wind swells dominate (81-86%) and good wind days become scarce (15-18%). Swell size slightly diminishes in late spring and summer (1.4m-1.5m), further limiting ideal surfing opportunities. For the most reliable, cleanest waves with solid ground swell and favorable winds, mid-autumn to late winter (April-August) is the prime window at Lennox Head.
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Conditions at Lennox Head in September
September at Lennox Head offers consistent surf with an average swell height of 1.4m and a solid 8.9s period, delivering well-organized waves. The dominant swell directions are SSE and E, with the highest frequency in the 1-1.5m range (10.30% for SSE, 6.47% for E), producing quality waves with good energy. Larger swells (1.5-2.5m) from the SSE and S occur regularly (7.36% and 2.31% respectively), providing punchy, powerful sections when combined with the longer period. Wind conditions are favorable only 26% of the time, with the best scenario being light offshore winds (W to NW) under 20kph, which are less frequent (around 5-7% combined). Unfortunately, northerly and easterly winds prevail, often blowing 10-30kph (NNE-ESE directions), creating choppy or cross-shore conditions. The spot handles southerly swells best, but onshore SE-SSE winds can degrade shape. Watch for larger SSE swells (2.5m+) paired with light winds—these days are prime for experienced surfers. Expect a mix of mid-sized, workable days with occasional clean peaks early mornings before wind picks up.
Average Spot conditions at Lennox Head in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Lennox Head 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 Lennox Head for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Lennox Head 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 Lennox Head.
