Conditions at Rosa in July
July: Punchy Winter Swell and Persistent Trades
July keeps the winter energy cranking at Rosa. The average wave period is 9.3s and the average swell height is 4-5ft (1.3m), with an even mix of E (18%), ENE (17%), S (16%), ESE (15%), SSE (15%) and SE (13%). The S and SSE directions are still producing the bigger 5-6ft (1.5-2m) waves, while the ENE/E swells fill in the middle ground. It is a consistent, powerful month, though not quite as clean as June.
Ideal wind drops slightly to 50%, with NNE (24%) building back to become the dominant direction. Still, SSW (11%), SW (12%) and NNW (10%) provide plenty of offshore opportunities, especially on the backside of cold fronts. Water temperature cools to 17.5°C, air averages just 15.1°C, and rainfall is a manageable 3.41 mm/day. July is a solid pick for quality, but be ready to pick your days around the trades.
Average Spot conditions at Rosa in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Rosa 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 Rosa for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Rosa 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 Rosa.