Porto Katsiki - surf spot statistics

Porto Katsiki in Greece is primarily a windswell-dominated spot, with very little ground swell influence throughout the year. The best months for surfers are generally from November to February, when wind swell frequency is highest and mean swell size approaches 0.8–0.9m. December and January offer the most consistent conditions, with wind swell occurring around 69–75% of the time, though wind conditions remain challenging, with bad onshore winds affecting 76–79% of days. February sees a slight drop in wind swell frequency (64%) but remains one of the better months. From March onward, wind swell activity decreases significantly, and the surf becomes far less reliable, with June through September being the least favorable due to low swell frequency (25–36%) and small mean sizes (0.4–0.5m). Summer months (May–September) are particularly poor, with very few rideable days and unfavorable winds persisting 83–88% of the time. Autumn (October–November) shows a slight uptick in wind swell activity, but conditions remain inconsistent. Overall, Porto Katsiki is a spot suited for experienced surfers willing to endure marginal conditions, with winter providing the best—though still limited—opportunities for surfable waves. Wind is a major limiting factor year-round, with clean offshore conditions rare (only 12–24% of days even in peak months).

In May, Porto Katsiki offers generally small and mellow surf conditions with an average swell height of 0.5m and a period of 5.0s, indicating weak energy and short-lived waves. The swell is predominantly from the WSW (15.68% of the time in the 0-0.5m range) and WNW (13.44% in the 0-0.5m range), with occasional slightly larger waves from the SW and S directions—though anything over 1.5m is rare. The wind is only ideal for surfing 12% of the time, with the most favorable conditions likely occurring when light offshore or cross-shore breezes (N, NE, or E) counteract the prevailing onshore/sideshore winds. Stronger winds (10-30kph) frequently come from the NW, WNW, and WSW, which can create chop and reduce wave quality. For surfers, May is a low-performance month here—best suited for beginners or longboarders on small, clean days, with only a handful of sessions likely to offer decent shape if the wind cooperates. Keep expectations low unless a rare, larger SSW or S swell arrives.