Surf forecastSpot statisticsHistorical report

Amoreira seasonal overview

Amoreira in Portugal offers surfable conditions year-round, but the best months for quality waves and favorable wind conditions are typically from October through March. During this period, ground swell dominates (64-90%), providing powerful, clean waves with mean swell sizes ranging from 1.5m to 2.0m, peaking in January and December. Wind conditions are far from perfect, but late autumn and winter still have the highest percentages of good winds (22-25%) compared to the rest of the year. The worst months for surfing are June, July, and August, when wind swell becomes predominant (70-81%), wave size drops to 1.0-1.1m, and bad wind conditions prevail (83-84%). Spring (April-May) and early autumn (September) serve as transition periods, with declining ground swell influence but manageable wave heights. If you’re looking for consistency and size, target the winter months, but be prepared for challenging winds—October and November offer a slightly better balance of swell and wind conditions compared to deep winter. Summer is best avoided unless you’re after small, less predictable waves.

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Conditions at Amoreira in September

In September, Amoreira offers moderately consistent surf conditions with an average swell height of 1.1m and a solid period of 10.5s, producing clean, well-spaced waves. The dominant swell directions are NW and WNW, accounting for the majority of rideable waves, particularly in the 0.5-2.5m range, with NW swells delivering the best size and power (peaking around 1-1.5m). WSW and W swells also contribute, though less frequently. Wind conditions are variable, with only 22% of days offering ideal offshore or light cross-shore winds (typically from the E/NE). However, stronger onshore winds from the NW/NNW occur regularly, creating choppier conditions. For experienced surfers, September can provide good sessions, especially when NW swells align with lighter winds, but consistency is tempered by wind interference. Smaller days (0.5-1.5m) are more frequent, making it suitable for all skill levels, while larger swells (1.5m+) are rarer but offer higher performance potential.

Average Spot conditions at Amoreira 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 Amoreira 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 Amoreira for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Amoreira 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 Amoreira.

Swell with good wind

Swell with good wind by size