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Conditions at Still Bay in June
June: Peak Season - Long Period and Offshore Flow
June is arguably the best month on the Still Bay calendar. Average wave height peaks at 2.2m (7.2ft), average period hits 12.3s, and ideal wind reaches the year's maximum of 58%. The synoptic setup is textbook: strong mid-latitude cyclones in the south-west Atlantic generate large SW (29.2%) and SSW (24.1%) swell, while the post-frontal N-NNW airflow provides clean offshore grooming across the SSE-facing coastline. Wind observations from N/NNE and NW/NNW make up nearly 37% of the total, and even the westerly component tends to be moderate. The result is a roaring, consistent, long-period groundswell with much more manageable surface conditions than the summer months. Sets in the 2-2.5m (6.5-8ft) range are common, with occasional 2.5m+ (8ft+) bombs when the strongest lows align. This is winter wetsuit territory - water temp drops to 16.0°C - but the quality more than makes up for the cold.
Air temperature averages 15.1°C and rainfall rises to 1.10mm/day, so expect fresh post-frontal conditions.
Average Spot conditions at Still Bay in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Still Bay during June. 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 Still Bay for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Still Bay for June. 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 Still Bay.