Today's Surf Conditions at Ondarreta
Best Surf Season & Climatology
Best Surf Season (October - March)
Ondarreta's surf year is written by the North Atlantic. From October through March, the storm track across the Bay of Biscay becomes active, cold fronts sweep across northern Spain, and average wave heights sit in the 1.6-2.1m (5-7ft) range with periods pushing 11-13s. The swell window is dominated by WNW/NW/NNW groundswell, and crucially, the wind story flips in your favor: southerly and southwesterly offshores blow on the backside of passing lows a good 41-49% of the time. That combination of long-period Atlantic groundswell and clean offshore airflow is why October through March is the prime window for real quality at this NNE-facing spot.
Detailed Surf Information for Ondarreta
Detailed Surf Forecast
Access our detailed 8-day swell and wind forecast charts for Ondarreta with tidal graphs, period ranges, and daily forecast text summaries.
Swell & Wind Statistics
Explore historical swell consistency, wave heights, and offshore wind windows month-by-month, compiled from over 40 years of data.
Historical Surf Report
Browse the historical database archives to view past wave reports and understand spot climatology during specific years and months.
