Conditions at Lido di Ostia in April
April: Spring Forward, Surf Backward
April is the first true shoulder-month compromise. The average swell drops to around 2.5ft (0.8m) and the period stagnates at 5.2s, meaning slower, weaker waves. There's still a lot of westerly energy in the water - WSW 16%, W 14%, and a westerly quadrant total of roughly 47% - but the direction mix becomes messier, with a marked increase in SSE (13%) and S (12%) swell that doesn't groom the sandbars nearly as well. The wind picture deteriorates: offshore easterlies (NE/ENE/E/ESE) account for only 17%, while onshore westerlies reach 28%. The ideal wind ratio sits at a disappointing 18%. Spring warmth arrives (air 13.4°C, SST 15.5°C), making you want to surf, but the sea gods often say otherwise. Keep the board close for the odd west swell with a morning E/NE wind - it's not huge, but it can be clean.
Average Spot conditions at Lido di Ostia in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Lido di Ostia during April. 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 Lido di Ostia for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Lido di Ostia for April. 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 Lido di Ostia.