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Conditions at Gunnamatta in July
July: Midwinter Power and the Northwesterly Onslaught
July sits at the core of winter. Average swell height climbs to 5-6ft (1.6m), with a wave period of 12.6s, and there is serious size on offer. Swell directions are heavily weighted toward the west and southwest: SW leads at 33.6%, WSW contributes 21.2%, and W adds 8.9%, while SSW remains an important secondary direction at 8.3%. The percentage of large swell in the 5-6.5ft (1.5-2m) and 6.5-8ft (2-2.5m) classes is among the highest of the year. When the swell hits, this is charging territory on a heavy sandbar.
Wind quality, however, is poor. Ideal offshore wind is only 15%, while NNW becomes the dominant wind at 20.7%, with a strong peak in the 30-50kph range. WNW and NW add another 21.9%, making for a very stormy, windblown month. The rare opportunity comes when a high pressure system parks to the north and delivers light E/NE winds with the groundswell. Water temperature drops to 12.5°C, air averages 11.4°C, and precipitation is 2.27mm/day. This is not a month for the faint-hearted.
Average Spot conditions at Gunnamatta in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Gunnamatta 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 Gunnamatta for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Gunnamatta 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 Gunnamatta.