Conditions at Comporta in July
July: Smallest Waves of the Year
July marks the seasonal bottom for surf size. The average swell height is just 3ft (1.0m), and the average period is 8.7 seconds, putting the surf in the small, average-period category. NW swell overwhelmingly dominates at 67 percent, with most waves in the 2-4ft (0.6-1.2m) range. The persistent Azores High locks the storm track far to the north, leaving only pulses of background northwest swell. Wind is the secondary problem: ideal conditions are just 24 percent, and NNW wind blows a massive 40 percent of the time, with NW and WNW flow adding more surface texture. Summer afternoons often deteriorate into lumpy, wind-affected lines. Air temperatures average 23.3°C and water temperature sits at 17.3°C, making this a beach and SUP month more than a serious surf month.
Average Spot conditions at Comporta in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Comporta during July. 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 Comporta for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Comporta for July. 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 Comporta.