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Conditions at Curl Curl in September
September: Spring Showdown
September is a classic spring transition month. The average swell is around 5ft (1.6m) with a 9.0s period, and ideal wind remains respectable at 37%. Swell is still substantial from the winter window, with SSE (17.5%), S (16.4%), SE (10.8%), and E/ENE/NE around 8-9% each, but the E/SE summer swell types are slowly re-emerging. Wind tables show NNW (11.2%) as the leading direction, with W (8.9%), NW (7.7%), WNW (7.2%) and WSW (7.6%) still offering offshore and clean windows. However, NE (7.4%) and NNE (7.3%) are on the rise, and the afternoon sea breeze is becoming a more regular feature. Water temperature sits at 18.4C, air averages 16.3C, and precipitation is low at 1.68mm/day. Dawn patrols with a fading NW wind are the highest percentage play, although the occasional winter-like front can still produce an all-day gem.
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.