Conditions at Yo-Yos in December
December: The Turning Point
December marks a clear return to more consistent surf quality. The average swell is 1.3m (4-5ft / 1.2-1.5m) with a 12.8s period - a little shorter than the summer swells but still powerful and punchy. The mix of SSW (63.7%) and SW (35.9%) swells provides a variety of peaks along the reef. The wind regime becomes more westerly and northwesterly, and the ideal wind frequency jumps to 28% - the best since April. This is the start of the surf season, and many days feature clean, offshore mornings before the sea breeze develops. With heavier rain (7.56mm/day), air temps at 26.9°C, and water holding at 29.5°C, December offers a warm, welcoming return to quality surf at Yo-Yos.
Average Spot conditions at Yo-Yos in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Yo-Yos 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 Yo-Yos for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Yo-Yos 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 Yo-Yos.