Surf forecastStatisticsHistorical report

Superbank seasonal overview

Best Surf Season (August - October)

While the Superbank faces north and ideally requires swell from north through northwest directions, the data reveals a unique window during the late winter and spring months where a greater prevalence of north-northeast and north swell energy arrives. Combined with a slight uptick in average swell heights, this period offers the highest probability of rideable, albeit modest, surf. The trade-off comes with less frequent offshore winds, as the southerly breeze becomes more erratic, but when a crisp S/SSW flow aligns with a pulse of north groundswell, the bank can produce clean, rippable walls in the 1-1.5m range. Expect mostly average 7-9s periods, providing punchy but not overly powerful waves.

Fair Surf Season (November - January)

As summer approaches, the north swell window narrows, but the wind regime becomes slightly more favorable. November through January sees a higher percentage of days with ideal offshore southerly winds (S/SSW), cleaning up the surface and creating smooth conditions. However, the swell composition shifts almost entirely to easterly quadrants, which the north-facing bank cannot fully harness. Wave heights linger around 1m with short periods, leading to small, grovelly waves that are best suited for longboards or high-performance shortboards on a good day. Occasional cyclonic pulses from the Coral Sea can inject some north-east swell, but these are rare.

Low Surf Season (February - July)

From late summer through mid-winter, the Superbank experiences its most challenging surf conditions. Optimal north swell drops to a mere whisper, with the vast majority of swell arriving from the east and southeast – directions that are essentially blocked by the north-facing orientation. Wave heights average only 0.9-1.1m, and periods are short, often below 9s, resulting in weak, messy waves. Although the offshore wind frequency is decent (especially in May), without a proper swell source, those clean days produce tiny, unrideable peaks. This is the time for micro-session gear or a trip elsewhere. The few surfable days come from rare north pulses that sneak through, but they are fleeting.

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Conditions at Superbank in September

September: Peak North Swell Window

September delivers the highest percentage of optimal north swell of any month – 16.6% – thanks largely to a surge in north-northeast waves (12.7%). Wave height remains modest at 0.9m with a shorter period of 7.8s, but the frequency of swell from the right direction is a game‐changer. Easterly and east‐southeasterly swells are still prevalent (20.7% and 17.2%), but the north component now offers consistent, rippable waves in the 0.5-1.5m range when conditions align. The trade‐off is a drop in offshore wind frequency to 38%, with northerly and north‐northeasterly winds (13.1% combined) ruining many sessions. Still, on the days when a southerly change cleans up the north swell, the Superbank can produce excellent, long walls – a true spring highlight.

Average Spot conditions at Superbank in September

Swell history for September

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for September

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Superbank 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 Superbank for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Superbank 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 Superbank.

Swell with good wind

Swell with good wind by size