Curl Curl seasonal overview
Curl Curl, located in New South Wales, Australia, offers consistent surf conditions year-round, but the best months for surfing are typically from March through August, with optimal conditions peaking between May and July. During these months, the swell is more likely to be ground swell (ranging from 23% to 31%), which tends to produce cleaner, more powerful waves compared to wind swell, which dominates the rest of the year. The mean swell size remains fairly stable at around 1.5-1.6 meters, providing manageable but fun waves for intermediate to advanced surfers. Wind conditions improve significantly from March onward, with good wind days increasing to 35-40% between April and July, reducing the likelihood of onshore chop that can spoil sessions. Winter months (May-July) are particularly favorable, with ground swell percentages at their highest (30-31%) and bad wind conditions dropping to around 60-61%. While autumn (March-May) offers a good balance between swell quality and manageable winds, early winter (June-July) is prime time for consistent, clean waves. The summer months (December-February) are less reliable, with high wind swell (82-87%) and poor wind conditions (77-80% bad winds), making sessions more variable. September and October can still provide decent surf, though ground swell drops slightly and winds become less predictable. Overall, surfers should target the autumn and winter months for the best combination of swell power, favorable winds, and wave quality at Curl Curl.
Loading chart...
Conditions at Curl Curl in September
In September, Curl Curl offers decent surfing conditions with an average swell height of 1.4m and a solid period of 9.0s, producing clean, well-formed waves. The swell distribution is best from the east to southeast (E to SSE), with 1-2m waves occurring frequently, providing rideable conditions on most days. The SSE direction, in particular, delivers the most consistent quality, with 9.06% of waves in the 1-1.5m range and 6.49% in the 1.5-2m range—ideal for intermediate to advanced surfers. Wind conditions are favorable 36% of the time, primarily when winds are light (0-20kph) from the west to northwest (W to NW), which keeps the surface clean. However, stronger northerly or southerly winds can occasionally disrupt conditions. Overall, September is a reliable month for surfers looking for manageable swells and decent shape, especially when winds cooperate.
Average Spot conditions at Curl Curl in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Curl Curl during September. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Curl Curl for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Curl Curl for September. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Curl Curl.
