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Conditions at Ansteys in May
May: The Winter Swell Engine Fires Up
May is a serious upgrade. The average period jumps to 10.4s, the wave height stays at a solid 5-6ft (1.7m), and the wind is ideal 50% of the time. The directional spectrum swings towards the south: S direction now accounts for 21.9% of all swell, SSE for 19.0%, and SE for 15.6%, while E/ESE remain important. There are plenty of 5-6.5ft (1.5-2m) waves, and the S direction throws in 4.4% at 6-8ft (2-2.5m) plus a hint of bigger water above 8ft (2.5m). Periods like these mean the swell wraps into Ansteys with real push.
Wind patterns finally align with the offshore ideal. The W/NW/NNW sector becomes a regular feature, with NNW at 10.5%, NW at 4.6%, W at 3.2%, and WNW at 3.8%, while NE trades weaken. That combination of long-period groundswell and offshore flow is pure gold. Air temperature cools to 22.2°C, water drops to 23.7°C, and rainfall falls to just 1.33mm/day. Dry, crisp, and considerably more reliable.
Average Spot conditions at Ansteys in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Ansteys 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 Ansteys for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ansteys 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 Ansteys.