Canide Norte seasonal overview
Best Surf Season (October - March)
The North Atlantic firing squad is in full effect. During these months, average swell heights consistently top 1.4m with long periods above 11s, primarily from the W-NW quadrants. The Portuguese coastline becomes a magnet for powerful groundswells generated by intense extratropical cyclones tracking across the Atlantic. Importantly, a high percentage of offshore wind events (up to 48% in December) from the SW-WNW directions create pristine, glassy conditions at Canide Norte. When the jet stream aligns and a strong Azores High extends east, the result is clean, pulsing WNW groundswell wrapping perfectly into the bay. This is prime time for consistent, quality surf.
Fair Surf Season (April, May, September)
As the seasons transition, the frequency and intensity of Atlantic storms decrease. Swell heights average between 1.1m and 1.3m, with periods in the 10-11s range—still rideable but lacking the power of winter. Winds become more variable, with a higher prevalence of northerly and northwesterly components that are often onshore or cross-shore. However, occasional injections of longer period swell from distant storms can still produce fun surf, especially in September when the first autumn lows begin to form. Patience is key during these months.
Low Surf Season (June - August)
Summer settles in and the surf goes into a lull. Average swell heights drop to around 0.9m with periods under 10s, predominantly short-period NW and WNW windswell. The dominant wind pattern is from the north-northwest (NNW), which blows directly onshore at Canide Norte, chopping up what little swell exists. Offshore wind from the SW-WNW is rare, occurring less than 15% of the time. Expect small, weak, and often messy conditions. This is the time for gear adjustments or alternative activities.
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Conditions at Canide Norte in September
September: First Stirrings of Autumn
September signals the beginning of the transition back to winter. Average swell height increases to 1.1m, and period climbs to 10.4s—a welcome return to longer period groundswell. Swell is mainly WNW (42.0%) and NW (39.3%), with a touch more W (11.5%). Ideal wind frequency rises to 25%, as the first autumn lows begin to generate offshore wind episodes. However, the wind pattern still features strong northerly components (NNW 21.7%, N 16.3%). The combination of improving swell and occasional clean wind windows means September can produce some fun, shoulder-high sessions. Keep an eye on the forecast for developing storms.
Average Spot conditions at Canide Norte in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Canide Norte during September. 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 Canide Norte for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Canide Norte for September. 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 Canide Norte.
