Conditions at Crab Island in July
July: The Dog Days of Small Waves
July is the most summer-like month at Crab Island, for better and for worse. Average swell height remains at 3-4ft (0.9-1.2m), but the average period sinks to 8.7 seconds, the lowest of the year. The swell rose is still dominated by the W (42.8%), WNW (21.8%), and WSW (20.0%) directions, leaving no shortage of swell direction, just no shortage of mush. Most of the energy falls in the 0.5-1.5m (2-5ft) range, with only a handful of 1.5-2.5m (5-8ft) waves.
Wind quality is the real summer casualty. Ideal offshore conditions drop to just 13%, and the onshore wind sector, particularly W and WNW, grows to roughly half of all observations. The afternoons are regularly blown out by a westerly sea breeze. With water temperatures at 16.1°C, air at 15.1°C, and rain at 3.27mm/day, it is pleasant to be at the beach, but you need a longboard, low expectations, and an early alarm if you want a clean session. This is the time to fix your wetsuit and wait for autumn.
Average Spot conditions at Crab Island in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Crab Island during July. 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 July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Crab Island for July. 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.