Conditions at Ribeira d'Ilhas in April
April: Transitional Energy and Shoulder-Season Windows
April is the hinge between winter and summer. Average surf height eases to 2.0m (6.5ft), and the average period backs off to 11.1s - still rideable, but with less of the deep-ocean, long-period punch compared with midwinter. The waverose is dominated by NW (28.0%), WNW (21.3%) and NNW (20.0%) swells, with the largest portion in the 1-2m (3-6.5ft) class. The wind picture is decidedly more spring-like: NNW wind is by far the most common at 28.6%, offshore quadrant winds fall to just around 9% of observations, and only 18% of the time is rated ideal. That means Ribeira is best in the morning before the seabreeze, or during a settled high-pressure spell with light E or NE flow. Air temps average 14.7°C, precipitation remains moderate at 1.88mm/day, and water temps climb to 15.7°C. It is not the most consistent month, but when a late-season Atlantic low lines up, there is still excellent, grinding surf to be found.
Average Spot conditions at Ribeira d'Ilhas in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Ribeira d'Ilhas 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 Ribeira d'Ilhas for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ribeira d'Ilhas 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 Ribeira d'Ilhas.