Yallingup seasonal overview
Yallingup, Western Australia, offers consistent surf year-round, dominated by clean ground swells (89-95% prevalence) with minimal wind swell interference. The best months for quality surf are April through October, when swell energy peaks and wave heights average 1.5m to 2.3m—reaching their largest in June-August (2.2-2.3m). However, winter (June-August) brings challenging wind conditions, with only 21% favorable offshore winds. April and May stand out as the sweet spot: swell size builds (1.5m-1.8m) while wind conditions improve (31-34% good winds), offering cleaner faces. September-October retains solid swell (2.2m-1.7m) but winds deteriorate slightly. Summer (December-March) provides smaller, manageable waves (1.2m-1.3m), though onshore winds plague 71-78% of days. For advanced surfers, late autumn (April-May) delivers the optimal balance of size, consistency, and cleaner conditions, while winter suits those prioritizing raw power over wind quality.
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Conditions at Yallingup in December
December at Yallingup offers consistent surf with an average swell height of 1.3m and a solid period of 12.7s, indicating well-formed, powerful waves. The dominant swell direction is from the southwest and west-southwest, contributing to quality waves, particularly in the 1-2m range, which makes up a significant portion of the conditions. Wind is favorable for surfing only 23% of the time, with cleaner sessions more likely when winds are light offshore (easterly) or variable. However, the prevailing winds tend to be south-southeasterly to southwesterly at moderate speeds (10-30kph), which can create chop or cross-shore bumps, especially on larger days. Swell energy is most reliable from SW/WSW directions, offering the best chance for overhead waves (1.5-2.5m), though smaller, rippable conditions (0.5-1.5m) are frequent. Expect a mix of workable days with occasional high-quality sessions when swell, wind, and tide align—particularly when winds stay below 20kph from the east or northeast. Advanced surfers will find the most opportunities, while beginners may struggle with the power and wind-affected chop on stronger swell days.
Average Spot conditions at Yallingup in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Yallingup during December. 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 Yallingup for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Yallingup for December. 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 Yallingup.
