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Conditions at Newport in December
December: High Summer, High Energy, Low Glass
December brings the full summer pattern to Newport. Average swell is around 4ft (1.3m), period is a short 8.1s, and ideal wind occurs just 16% of the time. Once again, the swell direction is good-ENE (19%), E (18%), ESE (16%), SE (18%) and SSE (20%)-but the ocean is mostly wind-affected. NE (15%), ENE (11%), NNE (11%) and SSE (11%) keep the surface lumpy through the afternoon, while W/NW offshore flow accounts for only about 9% of wind observations. Water temperature is a swimable 21.1°C, air averages 21.6°C, and rain totals 2.68 mm/day. December can still deliver fun, rippable 3-5ft (1-1.5m) east swells if you get lucky with a pre-dawn westerly, but consistency takes a backseat to high summer's thermal winds.
Average Spot conditions at Newport in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Newport 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 Newport for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Newport 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 Newport.