Conditions at Gruissan in March
March: Fading Winter, Building Breeze
March sees average swell height slip to 3ft (1.0m) while the period holds at 5.2s, but consistency fades as ideal offshore wind drops to 19%. The swell rose still carries a solid E/ESE/SE/SSE signal at 33%, with ESE and SE totalling over 20% combined, meaning good direction and moderate size are still possible. The problem is the growing influence of spring high pressure and thermal effects. NW/WNW winds remain common, but they often generate short-period, locally forced windswell rather than true groundswell. Water temperature begins its slow climb to 12.4°C, air temps reach 10.7°C, and precipitation averages 1.44 mm/day. March stays rideable, but the best waves come when an ESE low moves through and the NW tramontane cleans up in its wake.
Average Spot conditions at Gruissan in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Gruissan 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 Gruissan for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Gruissan 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 Gruissan.