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Conditions at Whangapoua Beach in May
May: Autumn Transition and Soaked Frontal Energy
May marks the beginning of the fair season. The average period remains rideable at 7.8s, but the swell direction spectrum starts to lose its grip on the NE-ENE window. The favorable N-NNE-NE-ENE segment drops to 40%, with ENE and E tied at 15% each and NE at 13%. More energy begins to come from NNW at 8% and N at 4%, and while the average height is still 1.5ft (0.5m), the system is more mixed and less organized.
Wind-wise, the offshore quadrant becomes more dominant. WSW at 14.8% and SW at 12.8% combine for the strongest offshore signal so far, and the total flow from S through WSW reaches 38%. Ideal surf wind occurs only 1% of the time, but when a southwest front passes and the period stretches above 8s, there can be fun, punchy waves. Air temperatures cool to 16.2°C, water drops to 17.9°C, and rainfall increases to 3.07mm/day as winter storms begin to fire across New Zealand.
Average Spot conditions at Whangapoua Beach in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Whangapoua 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 Whangapoua Beach for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Whangapoua 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 Whangapoua Beach.