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Conditions at Smiths Beach in July
July: Peak Winter Size, Maximum Power
July is the climax of the Southern Ocean swell season. The average wave height reaches 9ft (2.8m) and the average period is a thumping 13.1 seconds. The dominant directions remain SW/WSW, but there is a healthy slice of W and WNW energy feeding the coast. During strong events, waves easily exceed 10ft (3m) and the whole coast turns raw.
Wind remains the great separator. Strong W/NW flow blows a high percentage of the time, and ideal offshore wind is just 17 percent. The key is the passage of a cold front: as it clears, the wind clocks from NW to SW and then S, opening a window of clean, heavy surf at Smiths. In these windows, expect powerful, lined-up walls. Water temps fall to 18.2°C, so a hood is not yet essential but a decent 4/3 helps. Precipitation runs 3.82mm/day.
Average Spot conditions at Smiths Beach in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Smiths Beach 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 Smiths Beach for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Smiths Beach 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 Smiths Beach.