Conditions at Avalon in August
August: Late-Winter Consistency - Still Good, Just Grittier
August carries the tail end of the winter season. Ideal wind remains high at 39%, while the average period eases slightly to 9.1s. The swell distribution is led by SSE 20%, S 15% and SE 14%, with ENE and E each around 7-8%, making it a more mixed but still favorable window. Water temp is at an annual low of 17.9°C, air temp averages 12.9°C, and precipitation remains low at 1.63 mm/day. The good news is that the western half of the wind rose, especially W, WNW, NW and NNW, stays well represented, guaranteeing plenty of clean mornings. Average height is 1.3m (4.3ft), but the SE/SSE quadrants still produce a meaningful percentage of 1.5-2.5m (5-8ft) events. August is slightly grittier and shorter-period than July, but it can still deliver excellent lefts and rights before the spring sea breeze starts to build.
Average Spot conditions at Avalon in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Avalon 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 Avalon for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Avalon 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 Avalon.