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Conditions at North Stradbroke Island in May
May: The Engine Room Wakes Up
May is the first month where the good surf windows get wider. The average swell is 1.2m (4ft), but the period has climbed to 9.1s and the direction is well spread across ESE (24%), SE (23%), E (21%) and SSE (12%). The increasing westerly airflow behind migrating lows means ideal offshore wind from W/WNW/NW/NNW now reaches 19% of the time. The persistent summer onshore trade machine is losing its grip. Rain is moderate at 3.46mm/day, air temps average 21.7°C and water temp drops to 24.0°C. Expect morning offshores to groom chest-shoulder-high to head-high sets (3-5ft, 0.9-1.5m) with the occasional bigger pulse - this is when Straddie begins to resemble its winter self.
Average Spot conditions at North Stradbroke Island in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at North Stradbroke Island 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 North Stradbroke Island for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at North Stradbroke Island 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 North Stradbroke Island.