Conditions at Katagai in April
April: East Swell Dominates, Wind Becomes the Gatekeeper
April sees a major shift toward the ideal swell window - E, ESE and SE pulses make up over 60 percent of the wave spectrum, and average surf remains a user-friendly 1.3m (4ft plus) at 8.6s. The problem is the wind: only 23 percent of the time delivers true offshore flow. SSW/SW winds increase noticeably, delivering onshore or cross-shore texture for many afternoons, while NE/NNE flows keep things lumpy on other days. Precipitation becomes more frequent at 4.37 mm/day and the water begins to warm to 15.2°C, but even as spring greens up, you will need to pick your sessions carefully to make the most of the abundant easterly energy.
Average Spot conditions at Katagai in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Katagai 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 Katagai for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Katagai 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 Katagai.