Conditions at El Porto in May
May: Southern-Hemisphere Swell Season Begins
May is a true shoulder month. Average swell height still sits near 3ft (0.9m), period 12.0s, but the directional mix becomes more southerly. WSW leads at 40.2%, W drops to 29.3%, and SW surges to 24.2% as the southern-hemisphere storm track starts sending longer-period swell into Southern California. The W component can still fire: 3.6% of observations reach 5-6.5ft (1.5-2m) and another 0.7% hit 6.5-8ft (2-2.5m). But the majority of the swell is smaller, 2-3ft (0.5-1m), and southern-hemi energy often arrives more inconsistent.
Wind quality continues to decline, with ideal offshore conditions just 31% of the time. SW and WSW winds dominate the afternoon, which puts a low ceiling on wave quality after lunch. Air temperatures warm to 17.4°C, water temperature edges up to 14.2°C, and precipitation nearly dries out at 0.30mm/day. Early mornings and a well-timed SSW/SW groundswell can still deliver fun, clean waves, but the window is shorter.
Average Spot conditions at El Porto in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at El Porto 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 El Porto for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at El Porto 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 El Porto.