Conditions at Contreiras in July
July: The Summer Flat Spell
July is the most challenging month for good surf at Contreiras. Average swell height bottoms out at 1.4m (4.6ft), and the average wave period drops to 8.5s, which is short-period and easily chopped. The swell direction shifts northward, with NNE becoming the top source at 38.1 percent, followed by NNW at 30.6 percent, N at 18.4 percent and NW at 7.5 percent. This is mostly small, locally wind-driven swell and background NW pulses rather than organized groundswell. Wind statistics are brutal: NNE dominates an incredible 47.2 percent of observations, NE adds 27.2 percent, and NNW contributes 9.5 percent. The SSW-SW-WSW-W offshore wind window is essentially absent at 4 percent ideal conditions, meaning most days feature onshore or sideshore bump and weaker, closeout waves. Air temperatures are warm at 18.6-25.2°C, water temperature peaks at 22.0°C, and precipitation is just 0.13mm/day. If you are chasing waves in July, stay flexible and be ready to move to a more sheltered break, because Contreiras will mainly be small and soft.
Average Spot conditions at Contreiras in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Contreiras 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 Contreiras for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Contreiras 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 Contreiras.