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Conditions at Dee Why Point in June
June: Peak Winter Consistency
June brings the highest average swell height of the year at 6ft (1.8m), backed up by a powerful 9.6s average period. Tasman Sea lows and Southern Ocean storm systems send an almost constant supply of SSE, SE and S groundswell toward the New South Wales coast. At Dee Why Point, the westerly wind regime takes control, with SW, WSW, W and WNW winds totaling over 40% of the wind field. The ideal wind percentage remains at a strong 45%, meaning the Point is groomed and clean far more often than it is messy.
Air temperatures fall to 14.9°C, water drops to 19.3°C, and rainfall increases slightly to 2.97 mm/day. This is the heart of winter surf: consistent, pushy and full of energy, with plenty of long-period lines wrapping around the beach.
Average Spot conditions at Dee Why Point in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Dee Why Point during June. 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 Dee Why Point for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Dee Why Point for June. 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 Dee Why Point.