Gnaraloo

Best Surf Season (May - August)

Gnaraloo's best window runs from May through August, when the Southern Ocean low-pressure train cranks into gear and the average swell period climbs to a powerful 13.8-14.1s. Average heights build into the 4-5ft (1.2-1.5m) range, with a solid share of 5-8ft (1.5-2.4m) groundswell, while the favourable offshore quadrant-WSW through south-delivers ideal conditions 25-35% of the time. This is also when the subtropical ridge sitting south of Australia helps funnel a clean S/SE flow into the coast. The dominant SSW/SW swell direction is not Gnaraloo's dream N/NW window, but the long periods allow that energy to wrap, refract and line up on the exposed NW-facing stretch, producing powerful, rideable waves on the better days.