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.

In April, Karmøy typically offers small to moderate surf conditions with an average swell height of 0.8m and a decent period of 7.6s, indicating relatively clean and well-spaced waves. The most consistent swell directions come from the S-SW and W-NW sectors, with the majority of waves in the 0.5-1.5m range (peaking around 1-1.5m from the SSW and SW). Larger swells (1.5-2.5m) are less frequent but possible, especially from the SSW and SW, making these directions ideal for more experienced surfers. Wind conditions are often inconsistent for surfing, with only 11% being ideal (likely light offshore or cross-offshore). Winds from the N-NNW and S-SSE are common and can be problematic, as they frequently blow at 10-30kph or stronger, creating choppy or blown-out conditions. Overall, April delivers rideable waves, but sessions are highly wind-dependent, with the best opportunities occurring during rare clean wind/swell alignments. Patience and flexibility are key for scoring good surf this month.