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Conditions at Outer Kom in December
December: Summer Lull and the Dawn Patrol Reward
December is classic Cape Town summer: warm, dry, and dominated by the SE wind machine. Average swell height has eased to 7.5ft (2.3m) and period is 11.3s. The directional mix remains south-heavy, with SW at 27.0 percent, SSW at 15.6 percent, S at 9.9 percent and WSW at 7.4 percent. The frequent SW groundswell can still light up Outer Kom for a session, but the consistency is not there without the W/NW component.
Wind is the limiting factor. SE is 23.8 percent and SSE 22.6 percent, with a lot of that wind blowing hard in the afternoon. Only 7 percent of the time can the conditions be called ideal. The best chances are sunrise sessions before the Cape Doctor winds up. Water temp has risen to 17.8°C, air averages 19.1°C, and rainfall is low at 0.42mm/day. It is a lovely month to be in the water, but if you want Outer Kom at its best, set your sights on the autumn/winter months ahead.
Average Spot conditions at Outer Kom in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Outer Kom 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 Outer Kom for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Outer Kom 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 Outer Kom.