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.

July: Midwinter Sweet Spot – Most Consistent Offshore Flow

July offers the highest percentage of ideal wind at Windang Island – 38% of the time. This is the month when the offshore (W to NW) wind regime is most reliable. The swell mix is similar to June, with dominant directions from SSE (16.7%) and S (14.2%), but also a notable increase in SSW (6.1%) and SW (4.4%) contributions, indicating more westerly swell energy wrapping in. The average period is 9.5 seconds, and the height averages 1.7m, but the range often includes solid 1.5-2.5m sets. The wind rose highlights strong W (15.8%) and WSW (13.3%) winds, frequently in the 20-40kph range. While these are offshore, the strength can be intimidating for smaller board sizes. However, when the wind is lighter (10-20 kph from NW), the island offers pristine, glassy walls. July is a surfer's month – consistent, powerful, and with the best chance of all-day offshore conditions.