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Conditions at Supertubes in April
April: The Magic Transitional Month
April delivers the best blend of swell quality and clean wind at Supertubes. The average swell height rises to 6.5ft (2.0m) and the period lengthens to 12.8s. SW is the dominant swell direction at 41.9 percent, with SSW at 14.3 percent and WSW at 12.1 percent. The growing WSW signal is significant because it starts to line the swell up more directly with the NW-facing break, though there is still very little N/NW swell in the data.
Most importantly, ideal offshore conditions reach a yearly high of 29 percent. While SSE/SE winds still appear around 23 percent combined, the S/SSW/SW/WSW quadrant becomes much more regular, and the sea breeze is less aggressive than in summer. Air temperature is a pleasant 19.4°C (13.5-27.8°C), water temperature remains at 21.1°C, and rain increases to 1.23 mm/day. This is the month to mark on the calendar for long-period swell and groomed reef lines.
Average Spot conditions at Supertubes in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Supertubes 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 Supertubes for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Supertubes 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 Supertubes.