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.

June: Winter's Grip – Big Swells and Strong Winds

Winter fully arrives in June, bringing the largest average swell height of the year at 1.8m. The wave period is a powerful 9.6 seconds, with a strong bias towards SSE (17.2%) and S (15.6%) swells. The SE quadrant also contributes significantly (12.5%). These swells are generated by deep lows tracking across the Southern Ocean. The average height hides the fact that many days see waves exceeding 2m, often in the pumping to massive range. However, the wind becomes a double-edged sword. Ideal offshore wind frequency drops slightly to 35%, but the wind rose shows a surge in W (14.3%) and WSW (12.4%) winds, often strong (20-40kph). While these are offshore, they can be gusty and create challenging conditions. The SSW (13.5%) and S winds also remain prevalent. June rewards those who can read the weather: look for a solid SSE groundswell combined with a moderate W/NW wind before a front. The result can be epic, heavy waves at the island.