Conditions at Grindavik in March
March: Late-Winter Groundswell
March is still prime time at Grindavik. The average swell height eases slightly to 2.2m (7.2ft), but the average period remains a solid 11.0s. The S-SSW-SW quadrant is the dominant engine, with SW at 16.0%, SSW at 10.8%, S at 7.7% and WSW at 8.6%. Much of the surf is in the 1.5-2.5m (5-8ft) range, making it punchy and powerful. The wind is a little more favourable than midwinter, with ideal offshore flow reaching 14% of the time. NNW and NNE directions are better represented, particularly as late-season cold fronts sweep across Iceland. Still, NE and ENE winds are the most frequent, so clean conditions remain a select-window affair. Air temps average 1.5°C, water temps are 5.4°C, and precipitation remains substantial at 4.58mm/day. March is the last truly consistent month for heavy, long-period Atlantic groundswell before the spring energy fades.
Average Spot conditions at Grindavik in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Grindavik 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 Grindavik for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Grindavik 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 Grindavik.