Conditions at Santa Catarina in April
April: Cleaner Shoulder-Season Juice
April is a transition month. The average swell height eases to 8ft (2.4m) and the average period shortens to 10.8s, signalling less raw North Atlantic power. The swell direction becomes more northerly and more favorable: NNW at 16.0% is the clear leader, followed by NW at 9.9%, WNW at 7.1%, NNE at 6.5% and NE at 5.0%, so the N through E window now carries a more meaningful share of the energy. The wind distribution is split between SSW/SW at 6.8%/8.3% and a healthy NNW/NW component at 11.1%/7.2%, so the ideal offshore window remains limited to 13%. Still, when the wind settles into the S/SW quadrant, April is often glassy with fun, rippable 4-8ft (1.2-2.4m) peaks. Sea surface temps are 16.1°C (61°F), while air temps range from 11.5-19.1°C (53-66°F).
Average Spot conditions at Santa Catarina in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Santa Catarina 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 Santa Catarina for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Santa Catarina 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 Santa Catarina.