Conditions at Ervik in December
December: Peak Winter Power
December is the apex of the big-wave season at Ervik. Average swell height is 6.2ft (1.9m), average period is 11.8s, and the Atlantic storm track sits squarely across the Norwegian Sea. The swell rose is led by NNW at 15.2%, W at 14.0% and WSW at 10.1%, with NW at 9.8% and WNW at 9.4% adding steady optimal-angle energy. A real and powerful 5-8ft (1.5-2.5m) band dominates the distribution, and the best swells are long-period and heavy.
Wind patterns remain mixed: S at 11.6% and SSW at 10.8% blow offshore, but onshore NW/NNW flows are also present, and ideal conditions are only 15%. Water temperature is still relatively warm at 8.1°C, though air temperatures average a cold 3.3°C and precipitation is at its highest, 7.00mm/day. December rewards the local crew who can read the dark, stormy windows - these are the days for charging Ervik at full capacity.
Average Spot conditions at Ervik in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Ervik 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 Ervik for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ervik 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 Ervik.