Conditions at Spiders in July
July: Peak Heat, Minimal Groundswell
July is the summer peak in temperature, not in surf. At Spiders, average wave height remains around 5ft (1.6m) but the average period sinks to 7.8s, the shortest of the year. The waverose is essentially a single-direction event: NNW holds an astonishing 93.8 percent of all recorded swell, and NW adds only 0.8 percent. That is pure trade-wind swell, often clean but extremely wind-sensitive. The wind percentage is slightly better than June at 39 percent ideal, tempered by the summer sea breeze cycle; NNW winds still rule at 40.4 percent. Air temperatures average 29C with daily spikes over 40C, while ocean water stays at a surprisingly cool 17.8C thanks to upwelling. If you find a dawn patrol with easterly offshore flow, there can be fun ones - but consistent quality is rare.
Average Spot conditions at Spiders in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Spiders 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 Spiders for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Spiders 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 Spiders.