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Conditions at Middleton in July
July: Maximum Winter Power
July takes winter to its outermost limit. The average swell is 1.4m (4.6ft) at 12.3s, and the direction has shifted decisively to the south-west: SW commands 43.0% of the swell energy, SSW 28.0%, with WSW at 11.3% and W at 4.4% adding a broad, westerly spread. That means Middleton is catching groundswell from nearly every angle of its exposure, producing consistent, heavy, long-period surf. The bulk of the sets sit in the 1-1.5m (3.3-4.9ft) class (19.2% from SW), with another 10.5% from SW and 7.9% from SSW running at 1.5-2m (4.9-6.6ft).
The wind holds at 50% ideal, and the offshore quadrant is emphatic: NNW (17.4%), NW (13.1%) and WNW (11.2%) combine to dominate the rose. This is the classic winter setup - strong north-northwest pre-frontal winds grooming deep Southern Ocean groundswell into the south-facing sandbanks at Middleton. Air temperatures bottom out at 11.2°C, water at 14.1°C, and rainfall is heavy at 2.18 mm/day. It is raw, cold and relentless - exactly what serious winter surfers come to Middleton for.
Average Spot conditions at Middleton in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Middleton during July. 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 Middleton for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Middleton for July. 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 Middleton.