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Conditions at Port Alfred in December
December: Summer Easterlies, Flat Patches and Dawn Patrol
December rounds out the year with classic summer surf. Average swell dips to 1.7m (5.6ft), the period is 10.2s, and ideal wind is just 21%. The SSW direction still leads the swell distribution at 29.0%, with S at 19.1% and SSE at 12.2%, but the E/ESE/SE sector makes up 29.2% while SSE adds another 12.2%, meaning a lot of lower-energy, shorter-period windswell in the mix. The most common wind is ENE at 19.8%, with E at 13.1%, while onshore S/SSW/SW/WSW totals around 38%. Genuine offshore N/NNW/NW/WNW flow is scarce. That combination can leave the surf small, soft or textured, but it is not always bad: when a SSW groundswell lines up with an early offshore land-breeze and a rising tide, the first few hours of daylight can offer surprisingly clean 1-2m (3-6.5ft) waves. Water temperature climbs to 19.0°C, air temperature averages 21.5°C, and precipitation is 2.07 mm/day.
Average Spot conditions at Port Alfred in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Port Alfred 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 Port Alfred for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Port Alfred 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 Port Alfred.