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.

In October, Black Rock offers decent surf conditions with an average swell height of 1.6m and a solid period of 8.6s, indicating consistent, well-formed waves. The swell distribution is predominantly from the south and southeast, with the highest frequency in the 1-2.5m range (peaking around S and SSE directions), providing surfable waves most of the time. However, there’s a limited chance of larger swells over 2.5m (only ~0.2-0.6% from S/SSE). Wind conditions are somewhat variable, with only 22% of winds being ideal for surfing—typically lighter offshore winds from the north or northeast. Stronger onshore winds (10-30+ kph) from the south and southwest are more common, which can chop up conditions. For intermediate to advanced surfers, October delivers rideable waves, but patience is needed for ideal wind windows, especially early mornings when winds are lighter. Expect a mix of clean and messy days, with the best sessions occurring when swell aligns with offshore flow.