Windang Island - surf spot statistics

Best Surf Season (May - September)

Austral autumn and winter deliver the most consistent and high-quality surf to Windang Island. As the South Pacific storm track intensifies, long-period groundswells from the SE to SSE quadrant become dominant, often generated by powerful mid-latitude lows south of Australia. The average wave period climbs to 9.5-9.7 seconds, providing punchy, rippable waves in the 1-2.5m range. Crucially, the percentage of ideal offshore winds (from the W to NW) peaks at 35-38%, ensuring clean, groomed faces. This is the window for the island's best waves: powerful, lined-up sets with minimal onshore contamination.

Fair Surf Season (March - April & October)

The transition months offer a mixed bag but can produce phenomenal sessions when conditions align. March and April see a lingering summer swell mix with early winter groundswells, while October bridges the gap back towards summer. The average swell height remains solid at 1.6-1.7m, but the period drops slightly to 8.7-9.4 seconds, meaning more chop and less power. Ideal wind frequencies range from 25-33%, so you'll need to pick your windows. When a westerly change coincides with a solid SSE swell, the result can be glassy, hollow waves peeling off the island.

Low Surf Season (November - February)

Summer brings a significant downturn in surf quality at Windang Island. The dominant swell shifts east and northeast, with shorter periods (8.3-8.8s) and a higher proportion of windswell. The average height stays around 1.5-1.6m, but the consistency of clean, offshore conditions plummets to just 19-23% of the time. Onshore seabreezes from the E to SE are the norm, creating bumpy, blown-out surf. While occasional groundswell pulses from a distant cyclone or Tasman low can light up the island, these events are rare. Expect small, grovelly conditions most days, best reserved for beginners or the easily amused.

August: Late Winter – Holding Strong with Slightly Smaller Swell

August continues the winter trend but with a slight decrease in average swell height to 1.6m. The wave period remains solid at 9.2 seconds, still providing plenty of punch. The dominant swell directions are SSE (16.4%) and S (16.2%), with a significant contribution from SE (10.4%). The wind remains favorable, with ideal conditions 36% of the time. The wind rose shows a similar pattern to July, with strong W (14.6%) and WSW (11.4%) winds. However, there is a subtle increase in NW and NNW winds, which are lighter and more manageable. The swell height distribution shows a higher percentage of waves in the 1-1.5m range, making August a great month for surfing on a wider range of equipment. While the biggest swells are less frequent than June-July, the consistency of clean, offshore surf is still high. August is a reliable month for fun, rippable waves at Windang Island.