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.

March at Duranbah offers decent surfing conditions with an average swell height of 1.7m and a solid period of 9.2s, providing well-formed, powerful waves. The swell direction is predominantly from the east and southeast, with the largest waves (2m+) most frequently coming from the E, ESE, and SE—ideal for generating quality rides. However, wind conditions are a mixed bag: only 19% of the time are they truly favorable (light offshore or sideshore), while stronger onshore winds (SSE-SE) are more common, potentially creating choppier surfaces. The best windows are likely early mornings when winds tend to be lighter. Expect a mix of mid-sized, clean sessions when wind aligns, but be prepared for occasional blown-out days, especially if S-SE winds pick up. Overall, March delivers rideable waves regularly, but patience and timing are key to scoring the best conditions.