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Conditions at Seal Point in May
May: Rhythm of the Southern Ocean
May is a standout month. Average swell height climbs to 9-10ft (2.7-3.0m) and the average period reaches 12.2s, meaning the ocean is full of powerful, long-period energy. The wave direction spectrum is anchored by SW (17.9%), SSW (13.7%) and S (6.7%), with the best E-ESE-SE-SSE window contributing around 7 percent. That may sound low, but the sheer size and period coming from the south-southwest and southwest often wraps well and provides the heaviest waves of the season at Seal Point.
The wind story turns in the surfer's favor. Offshore W (24.7%), WNW (7.3%), NW (4.1%) and NNW (7.4%) combine for over 43 percent of the wind, and ideal conditions are present 36 percent of the time - the best of the autumn. Water temp drops to 17.7°C and air temp averages 17.2°C. With the frequent W/NW offshore winds and consistent Southern Ocean groundswell, May delivers some of the cleanest, most powerful sessions of the year.
Average Spot conditions at Seal Point in May
Swell history for May
Wind history for May
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.