- Home
- ...North America
Costa Rica- Playa Ostional
Conditions at Playa Ostional in April
April: Groundswell Season Ignites
April is when the southern-hemisphere swell machine turns on and the character of Playa Ostional changes completely. SSW swell explodes to 75.6% of all wave energy, with SW adding another 13.3%, meaning more than nine out of ten waves arrive from the ideal direction. The average period jumps to 14.1s, and while the mean height is still around 4ft (1.3m), a significant amount of SSW and SW energy sits in the 1.5-2m (5-6.5ft) range. The flip side is that the NE trades weaken to only 21.2%, and light S/SW sea-breezes start to creep in, holding ideal wind to 46%. Air temp averages 29.4°C, rain begins to increase at 1.10mm/day and water temp hits 29.4°C. April offers long, clean, powerful groundswell, especially in the early morning before the onshore wind develops.
Average Spot conditions at Playa Ostional in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Playa Ostional 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 Playa Ostional for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Playa Ostional 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 Playa Ostional.