Byberg - surf spot statistics

Best Surf Season (October - March)

The North Atlantic roars to life during these months, delivering the most consistent and powerful swell to Byberg's WNW-facing beach. Average wave heights climb from 1.3m in October to a peak of 1.6m in January, with periods often in the 8-9 second range—solid, punchy, and rideable. The combination of deep low-pressure systems tracking across the Norwegian Sea and a favorable NAO index funnels W, WNW, and NW swell directly into the coast. Offshore wind conditions from the east through south-southeast are most frequent during these months, especially in February and December when ideal wind percentages hit 15% and 13% respectively. This is prime time for clean, lined-up waves at Byberg.

Fair Surf Season (April & September)

As the seasons transition, April and September offer a mixed bag. Swell heights average 0.9-1.0m and periods drop to 7.1-7.5s, indicating more windswell than groundswell. The wind is ideal only 9-12% of the time, but episodes of high pressure can bring light offshore breezes from the ESE-SSE quadrant. While not the peak, these months can produce fun, rippable waves when conditions align. Expect smaller, groveling days interspersed with occasional solid pulses.

Low Surf Season (May - August)

Summer settles in with a dramatic drop in swell activity. Average wave heights hover around 0.7-0.8m and periods dwindle to 6.0-6.8s—mostly windswell with little power. The dominant swell direction shifts to NW and even NNW, which, while not ideal, still provides some surf. However, ideal offshore wind conditions are rare (only 7-8% of the time) and onshore winds from the NW and NNW prevail, ruining wave quality. This is the time for longboard groveling or seeking other activities; consistent, quality surf is scarce.

December: Winter Peak Arrives

December delivers the second-highest average swell of the year at 1.5m with a period of 8.3s. Swell direction is prime: W (13.0%), WNW (12.6%), and NW (12.0%) dominate. The percentage of ideal wind is 13%. The wind rose shows SE (11.5%) and SSE (9.6%) as the main offshore directions, while onshore NNW (6.8%) is slackening. This combination yields frequent XXL sessions when deep low pressures in the Norwegian Sea line up. Expect pumping barrels and long, rippable faces. December is a month for charging—just be ready for cold, dark mornings and the occasional Arctic gale.