Conditions at Zavial in July
July: The Low Point
July is the absolute flatline for Zavial. Average swell height is 4-5ft (1.2-1.5m), but that is due to short-period NNW/NW windswell - the average period drops to 8.2 seconds, the lowest of the year. The S/SSW/SW swell columns show a clean 0.0%, so the waves are small and generally soft. The wind regime is powerful NNW (48.6%) and NW (27.4%), sometimes pushing into the 30-40kph bracket, which while offshore is often too strong and bumpy; ideal conditions are just 28%. In the heat of a Portuguese summer, with water at 18.5°C, air temps from 15.7°C to 34.5°C and only 0.04mm/day of rain, Zavial is a beautiful beach-longboard spot. Just do not expect much beyond waist-to-chest-high runners.
Average Spot conditions at Zavial in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Zavial 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 Zavial for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Zavial 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 Zavial.