Conditions at Carcavelos in March
March: Power and Transition
March holds onto winter strength while the daylight lengthens. The average swell height is 2.2m (7ft) with a solid 12.4-second period, so long-period groundswell remains on the menu. The direction stats are led by NW (27.8%) and WNW (19.8%), with NNW at 11.0% and W at 8.0% - one of the best W percentages of the year. The W and WSW swell windows are especially important for Carcavelos because they hit the SSW-facing shore more directly. Combined with the S/SW/WSW energy that starts to appear, March can serve up big, organized surf.
The wind regime is transitioning: NNW builds to 25.9%, but the N/NNE/NE/ENE sector still totals around a quarter of the wind rose, enough to give plenty of clean mornings. Ideal wind is at 45%. Air temperatures moderate to 14.0°C and water stays 14.8°C, with rainfall easing slightly to 1.72 mm/day. Expect a mix of heavy winter-like days and early-spring glass, with the best sessions coming when the NW swell eases and a W/SW groundswell fills in under an offshore easterly.
Average Spot conditions at Carcavelos in March
Swell history for March
Wind history for March
Swell quality
Analyze the groundswell consistency at Carcavelos 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 Carcavelos for your next trip in March.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Carcavelos 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 Carcavelos.