Conditions at Martinhal in October
October: The Atlantic Wakes Up
The North Atlantic roars to life in October and we see a sharp jump in average surf heights, from 1.5m (5ft) in September to 1.8m (6ft), while the period lengthens to 11.4s, a clear sign that low-pressure systems are re-establishing across the eastern Atlantic. NW remains the primary swell direction at 38.0%, with WNW at 17.7% and NNW at 16.5% also in the mix; these are the first true groundswells of autumn and they fill the bay with consistent, sweeping peaks. Wind is also favourable: NNW leads at 28.6%, NW adds 8.1%, and ideal conditions reach 31%. E/SE winds become a bit more common as high pressure builds over Europe, but the clean NW windows are worth chasing. Air cools to 19.4°C, water is still warm at 19.3°C, and rainfall picks up to 2.23mm/day.
Average Spot conditions at Martinhal in October
Swell history for October
Wind history for October
Swell quality
Analyze the groundswell consistency at Martinhal 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 Martinhal for your next trip in October.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Martinhal 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 Martinhal.