Conditions at Carrownisky in March
March: Winter Power Meets Spring Light
March is a transition month that still delivers serious Atlantic surf. Average swell size eases to 5-6ft (1.7m) and the period remains solid at 12.0s, so groundswell still has real power. The direction distribution is excellent: W (21.7%), WNW (18.4%) and WSW (14.8%) dominate, with a healthy addition of NW/NNW swell that still hits the west-facing beach with plenty of force. The wave heights now cluster in the 3-6ft (1-2m) range rather than the giant winter sets, making it a great month for surfers who want quality without the full-on January hold-down. Ideal offshore winds improve slightly to 16%, and there is a better chance of a morning ENE/E breeze stacking the swell into clean peaks. Air temperatures rise a little, averaging 7.4°C (range -1.6 to 14.9°C), rainfall drops slightly to 3.30 mm/day, and water temperature is 8.3°C (47°F). The later light and improving wind odds make March a sneaky-good month at Carrownisky.
Average Spot conditions at Carrownisky in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Carrownisky 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 Carrownisky for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Carrownisky 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 Carrownisky.