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Conditions at Jeffreys Bay in December
December: Direct Swell With a Grain of Onshore
December closes the year with 8ft (2.5m) average swell, 10.9s period, and 35 percent ideal wind. The E/ESE swell window is at its best of the summer - E 2.6% and ESE 4.3% - offering more direct east-angled energy that hits the beach head-on. The problem is the wind. ENE (8.5%), E (13.9%), and ESE (10.0%) are all common, putting a chop on what could otherwise be perfectly lined-up waves. That said, WSW (16.4%) and SW (10.8%) still deliver clean days, especially in the mornings. With water temp at 18.6°C and air temps averaging 20.3°C, it feels like summer, but surf quality rides on the daily wind cycle. Rain averages 1.46mm/day.
Average Spot conditions at Jeffreys Bay in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Jeffreys Bay 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 Jeffreys Bay for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Jeffreys Bay 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 Jeffreys Bay.