Conditions at Backdoor in July
July: The Deep Summer Lull
July is the most dormant month of the year at Backdoor. The average swell height holds at 1.7m (5.6ft), but the average period bottoms out at 7.8s - messy, low-energy windswell. An extraordinary 64.5% of the wave energy arrives from the ENE, with another 27.8% from E, and almost no north or northwest swell. The wind rose is even more extreme: ENE (55.0%) and E (39.4%) total over 94% of observations. Ideal offshore wind is at its yearly minimum of just 9%. This is the season of choppy, drifty, onshore summer surf; even a solid pulse of ENE windswell is unlikely to make Backdoor turn on. Air temperatures peak around 25.7°C (min 22.3°C, max 30.2°C), precipitation is 1.04 mm/day, and water temperature is a warm 25.9°C. Put the shortboard away and look for another coast.
Average Spot conditions at Backdoor in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Backdoor 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 Backdoor for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Backdoor 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 Backdoor.