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.

May: Peak Late Autumn – Power and Consistency

May represents the peak of the late autumn season, offering the most favorable conditions for experienced surfers. The average wave period hits 9.7 seconds – the highest of the year – ensuring powerful, long-period groundswell. The swell direction is dominated by SSE (19.9%) and S (14.6%), with a solid showing from SE (14.2%). These swells wrap beautifully into the island's east-southeast facing beach. The average height remains at 1.7m, but the frequency of waves in the 1.5-2.5m range is high, providing plenty of grunt. The wind is ideal 37% of the time, with a significant increase in W to NW winds, particularly from the NW and WNW. These offshore flows are often moderate to fresh (10-30kph), keeping the waves clean and hollow. May is a goldilocks month – not too cold, consistent swell, and reliable offshore windows. This is prime time for Windang Island.