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Smiths Beach • Statistics for May

Conditions at Smiths Beach in May

May: The Southern Ocean Wakes Up

May marks a clear step up in power. Average swell height climbs to 7-8ft (2.3m) with an average period of 12.9 seconds, and for the first time in the climatology there is a meaningful sprinkle of WNW/NW/NNW swell in the mix. Those are the angles Smiths needs, so the new winter groundswell can finally push through to the beach with more authority. The dominant SW/WSW remains, but the westerly spread has widened.

The trade-off comes in the wind. The subtropical high has shifted away and frontal systems now arrive with muscle. W/NW winds become much more common, and ideal offshore flow runs at 26 percent. You need to catch the post-frontal S/SW window before the next low approaches. Water is cooling to 20.4°C and rainfall climbs to 2.70mm/day, a sign of the storm track waking up.

Average Spot conditions at Smiths Beach in May

Swell history for May

0 - 2
2 - 3
3 - 5
5 - 6
6 - 8
> 8 ft

Wind history for May

0 - 6.2
6.3 - 12.4
12.4 - 18.6
18.6 - 24.9
24.9 - 31.1
> 31.1 mph

Swell quality

Analyze the groundswell consistency at Smiths Beach 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 Smiths Beach for your next trip in May.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Smiths Beach 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 Smiths Beach.

Swell with good wind

Swell with good wind by size

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