Conditions at Costa Nova in October
October: Autumn Awakening
October is perhaps the most exciting month of the year at Costa Nova. The North Atlantic roars back to life as the first strong extratropical cyclones of the season spin up, lifting average swell heights to 2.0m (6-7ft) and periods to 11.3s. The swell distribution is excellent, with NW (31.3 per cent) and WNW (22.2 per cent) dominating, and W (8.6 per cent) and WSW (2.6 per cent) adding deep-water westerly energy. This is the month when winter-like groundswell starts to line up with the west-facing sandbars, and the potential for 15s+ swell becomes real.
Wind conditions are also turning favourable. Ideal offshore wind occurs 40 per cent of the time, and although the NNW flow (20.0 per cent) still lingers, the wind rose becomes more mixed with E, ENE, SSE and S elements all in play. As the high pressure over Iberia strengthens in between Atlantic lows, offshore easterlies can produce pristine, hollow conditions. Water temp is a comfortable 17.5°C, air averages 17.0°C, and rain increases to 3.87mm/day. The trade-off is a little more storminess, but the surf is well worth it.
Average Spot conditions at Costa Nova in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Costa Nova during October. 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 Nova for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Costa Nova for October. 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 Nova.