Conditions at Costa da Caparica in March
March: Energetic Shoulder Surf with a W-Swell Sneak
March remains solidly surfable. Average swell height eases to 1.7m (5-6ft) and periods stay a healthy 12.4s. The swell rose is split almost evenly between WNW (32%) and NW (31%), but W jumps to 13.6%, one of the better W percentages of the season. That gives the lineup a better chance of seeing true west-southwest freight trains rather than only northwesterly energy. Ideal wind frequency is still strong at 40%, although the now-strengthening NNW thermal flow also takes up 26% of the wind rose. Light NE-E offshore winds remain common enough to keep quality high, especially before the afternoon seabreeze kicks in. Water temperature holds around 14.8°C, air averages 14.0°C, and precipitation drops to 1.72 mm/day - a good month for a hooded 4/3 and a quiver of step-up boards.
Average Spot conditions at Costa da Caparica in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Costa da Caparica 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 Costa da Caparica for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Costa da Caparica 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 Costa da Caparica.