Conditions at Costa da Caparica in April
April: Bigger Swells Fading as the Nortada Builds
April is the last true transitional month with real winter potential. Average wave heights are 1.5m (around 5ft) and periods still reach 11.1s, so there is genuine power in the water. WNW (37%) and NW (31%) dominate, while W adds 14% and WSW 4%, keeping the beach well exposed to westerly energy. The main change is wind: ideal surf wind drops to 32%, and the NNW wind now blows 31% of the time, including a notable 20-30kph component. That spells increasing afternoon chop and the beginning of the summer nortada regime. The recipe is to hunt the dawn patrol, when land breezes and lighter NE/E offshore winds often overlap with leftover groundswell. Water is warming to 15.7°C and air averages 15.1°C, with rain at 1.78 mm/day - spring suits are starting to work.
Average Spot conditions at Costa da Caparica in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Costa da Caparica 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 Costa da Caparica for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Costa da Caparica 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 Costa da Caparica.