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).

Porto Katsiki in August offers generally small and weak surf conditions, unsuitable for most experienced surfers. The average swell height is 0.4m with a short 4.3s period, resulting in weak, crumbly waves. Nearly all wave energy comes from the WNW, W, and NW directions, with 96% of waves below 1.5m—mostly tiny (0-0.5m). Only about 13% of the time does wind align favorably for surfing, typically as light offshore winds (0-20kph) from the NE quadrant. However, the dominant summer NW winds often create choppy or cross-shore conditions. While WNW swells occasionally reach 1-1.5m (11.9% probability at 0.5-1m, 0.8% at 1-1.5m), these remain rare. Expect mostly flat spells punctuated by knee-high windswell best suited for beginners on foam boards or longboarders making the most of small conditions. Advanced surfers will find meaningful rideable waves only a handful of August days.