The Bluff - surf spot statistics

Best Surf Season (May - August)

The Southern Ocean reaches its peak fury during the austral winter, and The Bluff feels the pulse of the deep water swells that radiate from the Roaring Forties. From May through August, the average wave height sits around 1.3-1.6m with long periods consistently above 13 seconds, reaching 14.1s in the heart of winter. This is when the south-west swell machine is running at full steam. However, the spot's west-northwest orientation means these swells aren't perfectly aligned – they wrap in from the southwest, producing powerful but sometimes a bit wonky lines. The real magic happens when the wind clocks around to the east-southeast, providing clean offshore conditions. During these months, the frequency of such ideal wind is at its highest, especially in May and June when offshore winds blow over 35% of the time. Expect solid, ripable waves with occasional pumping sets in the 1.5-2m range.

Fair Surf Season (March - April & September)

During the transitional months of March, April, and September, The Bluff experiences a blend of winter and summer patterns. The Southern Ocean still delivers long-period swells, but the average heights begin to dip slightly in March-April while September holds onto 1.6m at 13.8s. The wind patterns become less reliable. April sees the best wind conditions of the fair period with 26% offshore, but March and September drop to around 16-19%. This means you'll have to be patient and pick your windows. When a high-pressure system settles over the Tasman Sea, it can funnel east-northeasterly winds, but more often the prevailing sea breeze from the south or southwest kicks up onshore chop. Surfers willing to hunt for the clean early mornings can score fun, powerful waves with long walls.

Low Surf Season (October - February)

From October through February, The Bluff enters its summer lull. The Southern Ocean storm track weakens and shifts south, resulting in shorter-period swells and smaller average heights. October still shows decent 1.6m waves with 13s periods, but the offshore wind percentage plummets to a mere 10%, and it only gets worse as summer progresses. November through February see average swell heights of 1.4m and periods below 12s, with the wind ideal for surfing only 7-16% of the time. The dominant swell direction remains SSW-SW, but the energy is lower and the wind predominantly blows from the south and southwest, which is onshore or side-onshore for the west-northwest beach. This combination produces choppy, messy conditions more often than not. The best chance for a session is during a rare cold front passage or tropical cyclone swell, but these are unpredictable. For most of the summer, expect micro to fun-sized waves with poor wind – better to chase an exposed east-facing coast.

March: Autumn Transition Begins

March is a transitional month as autumn approaches. Swell averages 1.3m with a period of 12.3s – longer period means more quality when conditions align. SSW (48.8%) and SW (42.5%) remain the dominant swell directions, but the modal period jump signals the arrival of more distant Southern Ocean storms. Offshore wind probability increases to 19%, the highest since February. South-southeasterly winds (SSE) become more prevalent (12.4% of all winds), bringing cleaner conditions compared to pure southerlies. However, onshore S and SSW winds still dominate (56.7%). Waiting for a high-pressure system to build from the southeast can create windows of clean, long-period swell. When it all comes together, you'll see fun 1-1.5m waves with occasional bigger sets from the SW quadrant.