Conditions at Ervik in April
April: Spring Showers and Cleaner Windows
The storm track starts to back off in April, but quality remains at Ervik. Average swell height is 4.3ft (1.3m) with an average period of 10.1s - solid, rideable groundswell. The swell direction distribution is excellent: NNW leads all directions at 20.9%, W is 14.9%, WNW 10.6% and NW 10.5%, so the good NW/NNW quadrant accounts for roughly 46% of all wave energy. Most waves now sit in the 2-5ft (0.5-1.5m) range, with enough 5-6.6ft (1.5-2m) peaks to keep the winter crew interested.
Wind becomes more bipolar. Spring pressure gradients ramp up NE at 14.8% and NNE at 8.9%, which can create lumpy cross-shore texture and are not the offshore flow Ervik wants. But SSW remains dominant at 15.3%, with S at 9.9%, and ideal surf windows hit 18%. Air temperature improves to 5.1°C, water temperature is 5.9°C, and precipitation drops to 3.67mm/day. April is one of the best late-season cold-water windows, with longer daylight and plenty of clean NNW swell.
Average Spot conditions at Ervik in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Ervik 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 Ervik for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ervik 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 Ervik.