Conditions at Mejillones in July
July: The Wind Season's Peak
July represents the toughest wind window of the year at Mejillones. Ideal surf wind is 0 percent, and that shows in the numbers: NNE dominates with an incredible 65.5 percent of all wind directions, N adds 21.0 percent and NNW 10.0 percent. That is essentially a constant cross-onshore airflow over an already NNW-exposed beach. Swell is still present-46.7 percent from N, 26.2 percent from NNW and 25.6 percent from NNE-but the average period is a weak 7.7s and the average height is only 1.6m (5ft). This is the classic summer combo of short-interval windswell and bumpy texture. Water temperature rises to 21.3°C, air temp averages 21.7°C and rainfall is negligible. If you are in the water anyway, it is a small-wave, reduced-expectations session; the longboard and fish are the quiver of choice until the early morning glass-off.
Average Spot conditions at Mejillones in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Mejillones 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 Mejillones for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mejillones 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 Mejillones.