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Conditions at Herradurra in December
December: Summer Grooming Returns
December rounds out the year in style, with ideal wind reliability back up to 94 percent. S winds account for 73.4 percent of observations, while SSE and SSW add another 24.2 percent combined. The 20-30kph wind fraction drops to just 3.8 percent, giving Herradurra long stretches of clean, offshore surf during the southern summer.
Swell averages 4ft (1.2m) at a 12.8s period. SSW remains the chief energy source at 86.8 percent, with SW at 12.7 percent and a small WSW component at 0.3 percent. The 3-5ft (1-1.5m) range is dominant at 75.8 percent, though there are still some 5-7ft (1.5-2m) days at 8.7 percent. Water temperature warms to 18.6°C, air averages 18.5°C, and rain remains nearly zero at 0.09mm/day. December is a perfect reset button and an excellent time to enjoy the bay in cleaner, more forgiving conditions.
Average Spot conditions at Herradurra in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Herradurra 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 Herradurra for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Herradurra 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 Herradurra.