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Conditions at Still Bay in April
April: Autumn Gets Serious
April marks a clear shift towards winter. The average swell height holds at 2.0m (6.5ft), but the period now stretches to 11.7s - a sign of more distant, powerful low-pressure systems. The swell direction mix spreads out across SSW (29.5%), S (17.3%), SW (13.8%) and SSE (10.3%), meaning the favourable SE-SSW window plus the wrapping SW component covers almost 78% of the wave energy. Just as important, the wind distribution becomes much more balanced. E/ESE drops to 24% and the ideal wind percentage doubles to 35%. NW, WNW and NNW winds appear regularly behind cold fronts, providing clean offshore sessions. Water temperatures are still comfortable for a good summer wetsuit, and the combo of strong autumn groundswell with improving winds makes April a real turning point for Still Bay stalwarts.
Air temperature averages 18.5°C, water temperature 18.0°C, and rainfall is 0.95mm/day.
Average Spot conditions at Still Bay in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Still Bay during April. 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 April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Still Bay for April. 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.