Duranbah - surf spot statistics

Duranbah in Australia is a surf spot with consistently rideable conditions year-round, but the best months for quality waves and favorable winds fall between May and August. During this period, the percentage of ground swell increases significantly, peaking at 30% in July, while wind swells decrease, providing cleaner and more powerful waves. The average swell size remains steady around 1.5m to 1.7m, offering solid but manageable waves for experienced surfers. Wind conditions also improve in these months, with the highest likelihood of good winds in June and July (36% favorable). Outside this window, from September to April, the spot becomes more wind-affected with a higher proportion of wind swells (up to 88% in November) and less ideal wind conditions (over 80% bad winds in summer months). Swell size slightly drops from September onward, averaging 1.4m, making the waves less consistent and powerful. If you’re looking for the best balance of swell quality and wind, late autumn to mid-winter (May to July) is the prime time, while summer months (December to February) offer smaller, more chopped-up conditions with frequent onshore winds.

October at Duranbah offers decent surf conditions with an average swell height of 1.4m and a period of 8.3s, suggesting mostly clean and organized waves. The swell is predominantly easterly (ENE to SE), contributing to the majority of rideable waves, with a solid distribution in the 1-2m range. SSE swells bring the largest waves (peaking at 2-2.5m), offering more powerful sessions for advanced surfers. Wind conditions are mixed—only 20% of the time is ideal (typically light offshore WNW to NW winds), but moderate onshore winds from the NE to SE can create chop, especially at higher speeds (20-30kph). Expect smaller, weaker waves from northerly or westerly swells. Overall, October delivers fair to good surf, with the best days occurring when easterly swells combine with lighter winds.