Conditions at Guincho in April
April: Thinning Winter Swell, Rising Nortada
April is where Guincho starts to shake off the true winter heavyweight label. Average swell drops to 6-7ft (1.8-2.1m) and period to 11.1s, but the character is still exciting: NW and WNW swells dominate, with a good share of head-high to double-overhead waves in the 5-8ft (1.5-2.4m) range. The main obstacle is wind. NNW flow blows 31% of the time, and ideal offshore windows shrink to 12%. That means classic Guincho walls are mostly a morning proposition - light land breeze first thing, then the daily summer nortada switches on by midday. Water temperature warms to 15.6°C, air temperatures reach 15°C, and showers remain possible at 1.8mm per day. April can produce exceptional wedges when a late-season North Atlantic low aligns with an eastern quadrant flow, but do not expect every swell to be clean.
Average Spot conditions at Guincho in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Guincho 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 Guincho for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Guincho 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 Guincho.