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Conditions at Woolamai in December
December: Summer's Onshore Struggle
December sets the tone for mid-summer: consistent but messy. The average swell height is 1.5m (5ft), the average period is 11.1s, and the swell rose remains full of SW (47.8%) and SSW (23.8%) groundswell, so there is almost always swell in the water. However, winds become a problem again - SSE (12.4%), SE (12.2%), S (9.0%) and SSW (8.1%) blow directly onshore for much of the day, while offshore NNW/NW/N/NNE winds account for about 11.5% of the time, leaving ideal conditions at 20%. Air temperature averages 16.2°C, water temp 16.7°C, and precipitation drops to 1.76 mm/day. Dawn patrol under a northerly offshore is the only reliable way to unlock Woolamai's summer sandbanks; afternoons are usually blown out.
Average Spot conditions at Woolamai in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Woolamai 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 Woolamai for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Woolamai 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 Woolamai.