Conditions at Porto Katsiki in May
May: The Fading Shoulder
May is the final month of the fair shoulder and the onset of the summer doldrums. Average swell height sinks to 1.6ft (0.5m), period compresses to 4.4s, and the ideal wind percentage wanes to 10%. Although the S/SSW/SW corridor still contains 20.6% of the directional energy, almost all of it is in the 0-0.5m or 0.5-1m classes, leaving the bay tiny and grovelly. The swell rose is now dominated by NW (23.2%) and WNW (17.8%) windswell generated by the first summer Etesian pulses, but those directions are not aligned for Porto Katsiki, so they mostly add surface chop rather than rideable surf. Air temperature climbs to 19.2°C and water temperature ties it at 19.2°C; rain falls only 0.93mm/day. A clean 2ft (0.6m) day requires a freak late-season cold front or an unusually strong low in the Adriatic, not impossible but not something to plan a trip around.
Average Spot conditions at Porto Katsiki in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Porto Katsiki during May. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Porto Katsiki for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Porto Katsiki for May. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Porto Katsiki.