Surf forecastStatisticsHistorical report

Seal Point seasonal overview

Best Surf Season (May - July)

The heart of winter sees the Southern Ocean roar to life, sending consistent, long-period groundswells marching toward the Cape. Average wave heights peak at a solid 3.1m with periods averaging 12.4–12.5s, offering a steady diet of powerful, well-structured lines. Offshore wind potential also hits its annual high at 36–37 percent, driven by frequent cold fronts that deliver clean W to NW winds in their wake. This is when Seal Point truly fires, with overlapping SW and SSW swells wrapping perfectly into the bay.

Fair Surf Season (April, August - September)

Shoulder months bring a slight drop in consistency but still offer excellent potential. April averages 2.7m at 11.8s, while August and September hold onto 3.0–3.1m with periods around 12s. Ideal wind percentages cool to 28–31 percent, meaning more onshore days from the E and ENE. However, when a strong high-pressure system sits just south and a cold front passes, the windows of W/NW wind align with the remaining SW groundswell, producing firing sessions.

Low Surf Season (October - March)

Spring and summer bring a noticeable lull in size and consistency. Average wave heights dip to 2.4–2.6m and periods drop to 10.9–11.1s. The wind pattern becomes dominated by persistent E and ENE breezes, blowing directly onshore and ruining wave quality. Ideal offshore wind frequency falls to 21–25 percent. While occasional long-period pulses from distant storms in the Southern Ocean can still deliver pumping days, they are often accompanied by poor wind. Patience and careful timing are essential during these months.

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Conditions at Seal Point in May

May: Winter Kicks into Gear

May is when Seal Point hits its stride. Average swell height climbs to 2.9m with an average period of 12.2s, reflecting the full force of the Southern Ocean storm track. Swell direction sees a peak in SW (17.9%) and SSW (13.7%), with a notable increase in WSW (1.4%) indicating more west in the swell, which is excellent for the east-facing bay. The wind situation improves dramatically: onshore E and ENE winds drop to just 16% combined, while westerly winds dominate at 24.7% (W) and 14.1% (WSW). Ideal offshore wind now occurs 36% of the time, the highest since the start of the year. This is the prime month to chase clean, long-period SW groundswell with offshore W winds—expect solid, hollow waves at the point.

Average Spot conditions at Seal Point in May

Swell history for May

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

Wind history for May

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

Swell quality

Analyze the groundswell consistency at Seal Point during May. 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 Seal Point for your next trip in May.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Seal Point for May. 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 Seal Point.

Swell with good wind

Swell with good wind by size