Conditions at Ribeira das Janelas in April
April: Transition Time: Trading Size for Shape
April marks the first real step down in size. Average swells run 6-7ft (1.9-2.1m) and periods ease to 11.2s, still in the powerful long-period range. The swell rose shifts more toward the N and NNE, which is a good thing for Ribeira das Janelas because those directions hit the beach best. In fact, N and NNE together account for nearly 17% of the total swell, while the NNW sector remains strong as well. Winds are slightly lighter than winter, but the northeasterly direction still dominates, with NNE at 21.1% and NE at 15.8%. The ideal offshore wind percentage remains at 16%. With water at 18.3°C and air temperatures around 17.1°C, it is still a bit fresh, but drier conditions at 0.76 mm/day and more sun make the dawn patrol much more enjoyable.
Average Spot conditions at Ribeira das Janelas in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Ribeira das Janelas 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 das Janelas for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ribeira das Janelas 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 das Janelas.