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Conditions at Rhossili Bay in August
August: The First Hints of Autumn
August remains in the summer doldrums, but you can start to feel the Atlantic stirring. Average swell height is still only 0.8m (2.6ft) and period is 7.4s, but the distribution shows slightly more 1-2m (3.3-6.6ft) swell than July, particularly from WSW and SW. The onshore wind machine is still running strong, with S/SSW/SW/WSW winds making up around 36% of the observations, but N/NE offshore windows still appear around 8.6% of the time, with ideal conditions at 6%. As water temperatures reach their annual peak at 17.8°C, it is the warmest time to sit in the water, and the occasional early-season Atlantic low or ex-hurricane can inject sudden groundswell into the forecast. Most days are small and wind-affected, but August is the month when the first real swell of the season can appear out of nowhere.
Average Spot conditions at Rhossili Bay in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Rhossili 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 Rhossili Bay for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rhossili 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 Rhossili Bay.