Conditions at Devil's Rock in May
May: The Summer Slump Begins
May is the last month of the shoulder season and the first clear sign of the summer lull. Average swell height eases to 6ft (1.8m) and period shortens to 9.4s, moving into wind-swell territory. The swell direction becomes heavily NNW at 62.9%, with NW at 19.3% - almost no W-SW energy reaching the spot. Ideal wind is just 27% of the time, one of the lowest marks of the year, and the persistent NNW (37.0%) and NW (24.4%) winds keep the ocean lumpy. Air temperature warms to 21.9°C, water temp sits at 17.4°C, and rain is scarce at 0.31 mm/day. For the summer months ahead, plan on dawn-patrol sessions and lower expectations.
Average Spot conditions at Devil's Rock in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Devil's 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 Devil's Rock for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Devil's 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 Devil's Rock.