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Conditions at Mossel Bay in August
August: Late-Winter Maximum Size and a Glimmer of Spring
August produces the biggest average swell of the year at 7.9ft (2.4m) with a 12.0s period. SW and SSW swells combine for 45 percent of the total wave energy, and there is a healthy amount of 2-2.5m plus swell in the mix. At this time of year, Mossel Bay is a serious wave, not a playful summer beach break.
Wind quality is starting to recover, with ideal flow at 28 percent. WSW and W winds are still strong, but the SW/SSW directional component is a little more common than in mid-winter, offering more post-frontal clean-up sessions. Air temperature averages 13.1°C, water temperature is 15.2°C, and rainfall is 1.33mm/day. The surf is maxing out, but you still have to pick the windows carefully.
Average Spot conditions at Mossel Bay in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Mossel Bay during August. 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 Mossel Bay for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mossel Bay for August. 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 Mossel Bay.