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Conditions at Perranporth in May
May: User-Friendly Waves as Spring Turns to Summer
May at Perranporth settles into a distinctly more user-friendly rhythm. Average swells run around 4ft (1.2m) with an average period of 9.3s, giving the beach short-interval, punchy surf that is perfect for groveling boards and high-rep turns. The direction mix is still heavily weighted toward the ideal west/northwest quadrant - W 36.4%, WNW 17.1%, WSW 14.5% - but the energy is spread across the 0.5-1.5m (2-5ft) range, and the rare bigger set becomes less common. Offshore wind remains a highlight at 23% of the time, and the drier weather (2.16mm/day) means more actual surfable windows. Air temperatures climb to 12.0°C, water warms to 12.0°C, and the longer daylight hours start to make dawn patrols genuinely enjoyable. Expect clean, fun-sized waves with occasional punchy shoulders; the big Atlantic days are fading for now.
Average Spot conditions at Perranporth in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Perranporth 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 Perranporth for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Perranporth 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 Perranporth.