Karmay - surf spot statistics

Karmøy, Norway, is a surf spot heavily influenced by wind swells, with ground swells playing a secondary role. The best months for surfing here are from late autumn to early spring, specifically October through March, when swell activity is more consistent and wave heights are larger. During these months, the mean swell size ranges between 1.3m and 1.6m, with wind swells dominating (66-72% of the time). However, wind conditions are generally poor, with good winds occurring only 9-11% of the time, meaning offshore or cross-shore winds are rare. The worst conditions are from May to August, when swell size drops significantly (0.7-0.8m), and ground swell contribution is minimal (3-9%). Summer months also see higher frequencies of no swell (35-42%), making surfing unreliable. While winter offers bigger waves, surfers must contend with strong onshore winds and challenging conditions, requiring experience and proper gear. For the most surfable conditions, target October-November and February-March, when swell size and frequency are decent, though wind quality remains a limiting factor. Overall, Karmøy is a spot for committed surfers who can handle less-than-ideal winds and colder temperatures in exchange for consistent waves.

October at Karmøy offers moderate surf conditions with an average swell height of 1.3m and a decent period of 7.5s, providing rideable waves, though they tend to be on the smaller side. The most consistent swell directions are from the S, SSW, and SW, with the highest frequency of waves in the 0.5-2.5m range. Notably, swells from the S and SSW contribute to the largest waves, occasionally reaching over 2.5m, though such instances are rare. Wind conditions are often less than ideal, with only 9% of the time offering favorable offshores (E to NE) for clean surf. The predominant winds come from the S, SSE, and SE, frequently blowing in the 20-40kph range, which can create choppy conditions. Surfers should watch for days with lighter winds from the E or NE, as these will provide the best shape, particularly when paired with SSW or SW swells. Overall, expect somewhat inconsistent but occasionally fun waves, with the best sessions depending on wind alignment.