Conditions at Arenillas in April
April: Shoulder Season Shifts and Smaller Windows
April is the transition month. The average swell height falls to 4-5ft (1.4m) and the average period drops to 10.9s - still rideable, but the winter heavyweights have stepped aside. The swell direction remains locked in the northern quadrant, with NW 43.8%, NNW 20.3% and WNW 18.4%. There is a lot more surf in the 0.5-1.5m range, making it a good month for a wider range of boards. The wind regime is where the change is most noticeable. The percentage of ideal wind drops to 31%, because high pressure starts to build and the ENE/E winds become more prominent (ENE 8.6%, E 8.2%). W and WNW winds are also still common (10.4% and 13.6%), so you will do battle with onshore tendencies. Air temperatures average 12.5°C with precipitation 2.79mm/day and water at 14.0°C. It is a shoulder-season month: small, clean days exist, but you have to be flexible and pay close attention to the pressure chart rather than blindly chasing swell.
Average Spot conditions at Arenillas in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Arenillas 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 Arenillas for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Arenillas 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 Arenillas.