Conditions at Porto Katsiki in August
August: Heat, Meltemi and No Relief
August mirrors July, with an average swell height of 1.6ft (0.5m), an average period of 4.0s, and ideal wind at 12%. The S/SSW/SW corridor is still a tiny 4.7% of the energy, while the NW sector has an extraordinary 53.1% share of the wave rose. At Porto Katsiki those NW windswells are far too angular and short-interval to produce clean lines; they only add sidewash and bump to an already calm sea. The positive note is that water temperature peaks at 25.6°C and air temperature at 26.6°C, so warm, glassy mornings are pleasant even if the surfboard stays in the car. A stray tropical-like Medicane or an unusual southerly low can produce a messy 1-2ft (0.3-0.6m) day, but conditions typically remain marginal and inconsistent. This is low season writ large: flat, hot and dry.
Average Spot conditions at Porto Katsiki in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Porto Katsiki during August. 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 August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Porto Katsiki for August. 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.