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Conditions at Little Wanganui in May
May: Winter Swell Machine Comes Online
By May, Little Wanganui is fully in winter mode. The average swell height climbs to 7ft (2.1m) with a 12.4s period, meaning powerful pulses roll in on a regular basis. Swell direction tells a slightly more varied story: WSW still leads at 45.7%, but W jumps to 13.7%, with meaningful WNW (6.8%) and NW (3.9%) contributions. That mix produces the best shape on the sand, as the W and WNW swells hit the beach almost head-on.
The wind quality is superb for this exposed coast. Ideal offshore flow reaches 49 percent of the time, and the ESE direction is the dominant player at 17.3%. South-east and east winds are also common, keeping the face of the wave reasonably clean. The trade-off is the cold: water temperature falls to 14.6°C and air temps average only 11.6°C, so winter rubber is essential. This is the month when Southern Ocean lows line up and Little Wanganui turns into a consistent, heavy-wave destination.
Average Spot conditions at Little Wanganui in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Little Wanganui 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 Little Wanganui for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Little Wanganui 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 Little Wanganui.