Conditions at Grupuk in July
July: Peak Size, Peak Frustration
July is the heaviest month on average at 1.8m (6ft) with 14.3s periods, and the SSW direction alone accounts for 60% of all swell. S swell adds another 30%, and over 20% of the waves are in the 2-2.5m range - this is proper groundswell. But the ideal wind figure collapses to 2%. The SE trade regime is locked in, blowing 20-30+kph out of the ESE/SE. For a south-facing spot, that is pure onshore chop. The surf is there, but it rarely cleans up. Keep an eye on local wind shadow effects; otherwise July is for watching the ocean roar.
Average Spot conditions at Grupuk in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Grupuk 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 Grupuk for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Grupuk 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 Grupuk.