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Conditions at Motunau Beach Island in March
March: The Autumn Transition Begins
March marks the first meaningful shift toward winter. Average swell height climbs to 1.3m (4-5ft), period expands to 10.5s, and ideal wind frequency improves to 40 percent. The swell rose still favours E at 22.4 percent and ESE at 15.9 percent, but S and SSW energy is clearly on the rise, with S contributing 9.8 percent and SSW another 2.3 percent. These longer-period S pulses, when paired with NW/NNW offshore winds, yield some of the first proper, powerful surf of the season. Water temps ease to 16.2°C and air temps drop to 14.9°C, so it is time to break out a slightly thicker suit and start watching the Southern Ocean charts.
Average Spot conditions at Motunau Beach Island in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Motunau Beach Island during March. 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 Motunau Beach Island for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Motunau Beach Island for March. 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 Motunau Beach Island.