Surf forecastStatisticsHistorical report

Fistral Beach seasonal overview

Best Surf Season (October - March)

The North Atlantic roars to life during these months, sending consistent, powerful swell trains toward the Cornish coast. Average wave heights range from 1.6m to 2.2m with periods often exceeding 11s, providing the raw energy Fistral needs for its best waves. The dominant swell direction is from the W and WSW, which aligns perfectly with the beach's WNW exposure. However, the wind is the wildcard: onshore westerlies (W, WNW, NW) are common, and the percentage of ideal offshore flow (SW, SSW, WSW) hovers around 22-24%. When a high-pressure system sets up over Scandinavia or the UK, light easterlies can deliver glassy conditions on these powerful swells, creating epic days with long, hollow lines peeling across the bay.

Fair Surf Season (April, May, September)

Transitional months offer a compromise between winter size and summer consistency. April sees a slight drop in average swell height to 1.3m but an uptick in ideal wind frequency to 27%. September mirrors this with 1.3m swells and 24% offshore wind. The wave period drops to around 9-10s, making conditions more manageable but still punchy. Swell direction remains predominantly W, with a notable WNW component. These months are the sweet spot for intermediate surfers looking for fun, rippable waves without the winter crowds or the brutal onshore gales. Expect occasional long-period groundswells from decaying hurricanes or deep lows tracking north.

Low Surf Season (June - August)

Summer brings a distinct lull in the North Atlantic storm track. Average swell height plummets to 1.0-1.1m and periods shorten to 8-8.5s, resulting in weaker, more inconsistent surf. The wind pattern also becomes less favorable: ideal offshore flow drops to 16-18% as the dominant wind shifts from the SW and W. Most days see onshore westerlies that chop up the already small swell. While the water is warm and the sun often shines, the surf is mostly small and grovelly. Longboarders and beginners can still find fun 0.5-1m waves, but for anything with power, you'll need to time a rare groundswell with a morning offshore easterly breeze – a combination that becomes increasingly hard to find as summer progresses.

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Conditions at Fistral Beach in September

September: Autumn Wake-Up Call

September marks a clear step up in surf quality as autumn begins. The average swell height rises to 1.3m and period to 9.6s. The W swell component remains strong (40.2%), but there is an increase in swell from the SW (4.3%) and WSW (13.0%), indicating a more active Atlantic. The percentage of waves in the 1-1.5m range increases to 14.3%, and the 1.5-2m range accounts for 8.2%. More importantly, ideal wind conditions improve to 24%, tied with October for the highest in the autumn. The wind rose shows a shift away from strong onshore westerlies toward more SE and S winds (11.7% combined), which blow offshore at Fistral. The first strong frontal systems begin to develop, bringing longer-period swell and more consistent surf. It's a transitional month where you can often score clean, chest-high waves with offshore winds, especially in the weeks following early season storms. September is a prime time for surfers looking to avoid winter crowds while still enjoying quality waves.

Average Spot conditions at Fistral Beach 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 Fistral Beach 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 Fistral Beach for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Fistral Beach 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 Fistral Beach.

Swell with good wind

Swell with good wind by size