Conditions at Crab Island in June
June: First Summer Lull
June marks the beginning of Crab Island's low season, but it is still far from flat. The average swell height is 3-4ft (0.9-1.2m) with a period of just 9.1 seconds, meaning short-period, locally generated Atlantic windswell becomes the dominant wave. Swell direction actually looks great on paper, W at 35.2%, WSW at 21.4%, WNW at 20.7%, and NW at 7.3%, but the shorter period and lack of size prevent the spot from showing its full potential.
Wind becomes the bigger issue. Offshore flow from the ENE-to-SE quadrant drops to just 13.8%, while the onshore WSW-to-NW quadrant increases to 41.3%. That is a recipe for lumpy, choppy afternoons. The summer sea breeze often kicks in from the west, putting a cross-onshore chop on the already small swell. Water temperatures rise to 14.3°C, air to 13.6°C, and precipitation stays low at 2.95mm/day. Dawn patrol is your best bet, and fun-sized waves are the name of the game.
Average Spot conditions at Crab Island in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Crab Island during June. 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 Crab Island for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Crab Island for June. 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 Crab Island.