Conditions at Grindavik in July
July: Peak Summer, Clean but Weak
July is the smallest surf month of the year at Grindavik. The average swell height is just 1.0m (3.3ft), and the average period falls to 8.2s. The S-SSW-SW quadrant still produces the most waves, with SW at 25.0%, SSW at 17.1%, S at 10.6% and WSW at 12.3%, but the mix is heavily weighted toward 0.5-1.5m (1.6-5ft) swell and short-period windswell. On the bright side, ideal offshore winds are at their annual peak of 25%; NNW is the most common wind direction at 14.9%, with NW adding another 9.1%. This means the small waves are frequently clean and well-ordered, perfect for longboards and small-wave boards. Air temps reach 10.9°C, water temps settle around 11.3°C, and precipitation remains modest at 2.75mm/day. It is a low-energy, high-cleanliness month.
Average Spot conditions at Grindavik in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Grindavik 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 Grindavik for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Grindavik 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 Grindavik.