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.

July at Black Rock offers fairly consistent surf, though conditions are far from perfect. The average swell height sits at 1.6m with a decent period of 9.4s, providing some solid, well-formed waves. Swells predominantly come from the S-SE quadrant, with the SSE and S directions delivering the most rideable waves—especially in the 1-2.5m range. However, larger swells (over 2.5m) are rare, limiting the chance for bigger, more powerful sessions. Wind is a mixed bag: only 13% of the time is it ideal (likely light offshore breezes). Southwest and westerly winds dominate, often blowing at 10-30kph, which can create choppy or cross-shore conditions. Mornings may see cleaner waves before winds pick up. Overall, expect variable surf with some good days, but be prepared for inconsistent winds and moderate swell energy. Intermediate to advanced surfers will find the most opportunities, though patience is key.