Woolamai seasonal overview
Best Surf Season (May - September)
Winter and early spring bring the most consistent combination of powerful, long-period swell and favourable offshore winds to Woolamai. As the Roaring Forties intensify, low-pressure systems track across the Southern Ocean, delivering a near-constant stream of SW groundswell. The average wave period sits around 12 seconds, with heights frequently in the 1.5-2.5m range – solid, pumping surf that works beautifully on the south-facing beach. Offshore winds from the N to NW quadrant dominate over 40% of the time, grooming the waves to perfection. This is the prime window for quality sessions on the Points and beach breaks.
Fair Surf Season (March - April & October - November)
The transition months offer a mix of solid swell and increasing wind variability. During March and April, the ocean is still fired up from winter, with average periods around 12s and heights often in the fun to solid 1-1.5m range. However, the ideal wind percentage drops to 25-38%, meaning you'll need to pick your days as onshore SE-SSE winds creep back in. October and November see the tail end of winter's energy, with average swell heights at 1.5-1.6m and periods around 11.5-12.2s. Offshore flows are less frequent (25-32%), but when a high-pressure system parks over the Tasman Sea, it can channel clean N-NW winds over the peninsula, making for excellent mid-morning sessions.
Low Surf Season (December - February)
Summer is the quietest time for reliable surf at Woolamai. The dominant SW swell still rolls in, but it's often smaller and less consistent, averaging 1.5m with a shorter 11s period. The real issue is the wind: SE and SSE onshore flows blow over 30% of the time, chopping up the waves. Light offshore winds from the north occur only 19% of the time. While you can still score fun, rippable waves on good days, the overall conditions are more grovelly and less dependable. Early mornings often offer the slickest windows before the seabreeze kicks in.
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Conditions at Woolamai in September
September: Spring Mix – Still Good, But Wind Changing
September is a transitional month. The ocean is still full of winter energy: average swell height 1.7m, period 12.6s. Swell direction is led by SW (45.0%) and WSW (15.6%), with some NW contributions. However, the wind pattern begins to shift. Ideal offshore conditions drop to 41%, as westerly and north-westerly flows are still common but are now more frequently interrupted by high-pressure systems that bring lighter, variable winds. Onshore SE-SSE winds increase to 6.6%, still manageable. The waves themselves are often powerful and consistent. September offers many good days, but you'll need to be more selective. The longer days and warmer air make it a pleasant time to surf, but the wind windows may be shorter. Early mornings with a NW breeze are your best bet for clean conditions.
Average Spot conditions at Woolamai in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Woolamai 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 Woolamai for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Woolamai 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 Woolamai.
