Black Rock - surf spot statistics

Black Rock, Australia, is primarily a windswell-dominated spot, with ground swells playing a minor role throughout the year. The best months for surfing here are from February to April, when ground swell percentages are slightly higher (19-27%) compared to other months, and wind conditions are relatively better (27% good winds in February and March, 24% in April). The mean swell size during this period hovers around 1.6-1.7m, offering decent surfable waves. Wind conditions deteriorate significantly from May to August, with only 13-18% favorable wind days, making these months less ideal due to frequent onshore and cross-shore winds. The swell size remains consistent year-round (1.5-1.7m), but the low ground swell contribution and poor wind conditions outside the early-year window limit quality surfing opportunities. September to December sees a return of slightly better wind stats (19-25%), but the dominance of windswell (81-87%) and minimal ground swell reduce wave quality. Overall, late summer and early autumn (February-April) provide the most balanced conditions with a modest increase in ground swell and marginally better wind alignment. Surfers should prioritize this window for cleaner, more reliable waves, though even then, windswell remains the primary energy source.

May at Black Rock offers decent surf conditions, with an average swell height of 1.6m and a solid 9.6s period, providing enough power for intermediate to advanced surfers. The swell is predominantly from the S to SSE (peaking at 8.75% for S in the 1-1.5m range), delivering consistent, well-formed waves with a good mix of mid-sized and larger swells (SSE shows 4.87% in the 1.5-2m range). Winds are the main limiting factor—only 18% of the time are they ideal for surfing, often blowing from the S to SW at 10-30kph, which can create onshore chop. However, early mornings or periods with lighter ENE/NE winds (under 20kph) may provide cleaner conditions. Overall, expect workable waves but variable wind quality—best suited for surfers who can adapt to changing conditions.