Conditions at Mejillones in March
March: Late-Winter Gold with a Side of Wind
March begins the slow fade, but only slightly. The average swell height is still a solid 2.1m (7ft) and the average period remains a very respectable 12.0s, while the swell distribution is still heavily loaded to the NNW (38.8 percent) and NW (18.1 percent), with N adding another 8.6 percent. That means Mejillones continues to fire when conditions align. However, the wind stats show a tell-tale spring shift: NNE ramps to 30.0 percent and NNW contributes 13.2 percent, while ideal wind drops to 10 percent. The NNE flow-and the moderate afternoon seabreeze regime-often adds cross-onshore chop to otherwise solid waves. Water temperature sits at 18.3°C, air temps warm slightly to 17.8°C. March is still worth chasing, but you need to be more selective, favoring early mornings and the days when a S/SW flow takes over.
Average Spot conditions at Mejillones in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Mejillones during March. 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 March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mejillones for March. 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.