- Home
- ...North America
Costa Rica- Witches Rock
Conditions at Witches Rock in May
May: Southern Hemi Swell Meets Clean Trades
May is where the surf season really comes alive at Witches Rock. The southern-hemisphere winter storm track starts producing consistent long-period groundswell that reaches Costa Rica almost directly. The average period is 13.7s - the highest of the year - and SSW/SW directions combine for roughly 66% of the total swell energy (SSW 43.7%, SW 21.9%, plus a sprinkle of WSW). Heights remain in the friendly 1-1.5m (3-5ft) zone, with occasional 1.5-2m (5-6.5ft) sets. Offshore NE and ENE winds are still present, though less brutish than in winter, which helps the ideal wind percentage reach 54%. Air temperatures are warm at 27.8°C and water has heated to 29.1°C, but the daily rain average rises to 5.71mm as the green season begins. When the sun pops through between tropical showers, Witches Rock serves up clean, punchy lines.
Average Spot conditions at Witches Rock in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Witches Rock during May. 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 Witches Rock for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Witches Rock for May. 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 Witches Rock.