Surf forecastStatisticsHistorical report

Praia do Norte seasonal overview

Best Surf Season (October - March)

The North Atlantic flexes its muscles during this half-year, delivering consistent, powerful groundswells that put Praia do Norte on the big-wave map. Average swell heights hover between 2.1 and 2.4 meters with long periods of 12 to 13 seconds, fueled by deep extratropical lows tracking across the basin. Ideal offshore wind conditions (from the NW through WSW quadrant) occur between 44% and 53% of the time, often aligning with post-frontal high pressure that clears the skies and carves the faces. This is the time for charging.

Fair Surf Season (April & September)

These transitional months see a slight drop in average swell height to 1.8 m in April and 1.5 m in September, but periods remain respectable at 11.2 and 10.5 seconds. The westerly swell window (SW to WNW) still provides punchy to powerful waves, and ideal wind frequencies of 35% and 39% offer plenty of clean sessions. Spring and early autumn can surprise with a rogue storm lining up a solid west swell under crisp offshore winds.

Low Surf Season (May - August)

During these summer months, the North Atlantic settles into a lull. Average swell heights drop to 1.3-1.5 m and periods shorten to 8.7-10.0 seconds, with a dominant NW-NNW component that often lacks the angle to fully wrap into Praia do Norte. The trade wind regime strengthens, and the frequency of ideal offshore winds plummets to 21-31%. While the occasional fun-sized wave can be found, consistent quality is elusive. This is the time for groveling or exploring other spots.

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Conditions at Praia do Norte in September

September: Reawakening of the Atlantic

As autumn begins, average swell height climbs to 1.5 m and period to 10.5 seconds. NW swell still leads at 43.6%, but WNW adds 22.7% and W 5.2% – a more favorable mix. Ideal wind frequency jumps to 39%, a significant improvement over summer. N winds dominate at 27.4%, but the directional spread widens, with more E and ESE winds (about 6% combined) appearing as early continental highs form. The NAO transitions to a more neutral state, allowing low-pressure systems to dip south again. September is a transitional month where the first real groundswells of the season can push in, and the summer northerlies begin to break down. The quality improves markedly compared to July and August.

Average Spot conditions at Praia do Norte in September

Swell history for September

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for September

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Praia do 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 Praia do Norte for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Praia do 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 Praia do Norte.

Swell with good wind

Swell with good wind by size