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Conditions at Umdloti in December
December: Holiday Heat and Summer Grovel
December closes the year on the slow, warm end of Umdloti's spectrum. The average period is the shortest of the year at 8.7s, the average height is down to 1.6m, and ideal wind is only 18%. The trade wind regime is back: NE 18.8%, ENE 14.7%, S 11.9%, SSW 15.3% and SW 5.2%. The swell rose is still busy but less favorable. SSE 20.2%, E 18.6%, SE 16.7%, S 15.7%, ESE 14.5% and ENE 11.7%. The good news: there is plenty of 3-6ft (1-2m) SE and SSE swell, and the ESE-facing beaches pick up that energy. The bad news: with those short periods and NE/ENE winds, Umdloti is often a grovelly, bumpy summer wave. Water temp climbs to 24.1°C, air averages 23.3°C, and 2.95 mm/day rain brings humidity and thunderstorms. For consistent clean waves, December is a time to watch for a passing cold front, a late-season cyclone, or the rare morning calm before the trades fill in.
Average Spot conditions at Umdloti in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Umdloti 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 Umdloti for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Umdloti 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 Umdloti.