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Conditions at Pease Bay in September
September: First Autumn Pulse
September is a key transition month and the start of the upwards curve back into surf season. The average swell height rises to 3ft (1.0m) and the period extends slightly to 5.5s. The favourable N, NNE, NE and ENE sectors produce about 30% of the wave spectrum, and there is an increase in the 3-5ft (1-1.5m) bands; this is enough to make the bay fun again. The jet stream begins to dip south, allowing the first real Atlantic lows to brush the UK.
Offshore wind frequency reaches 16%, tied for the highest of the year. WSW/W winds are still strong but not as relentless as summer, and the lighter S/SSW/SW windows come with more consistency. At 14.1°C water and 12.6°C air, with rainfall at 2.11 mm/day, it is still comfortable enough for shorter sessions. The late September equinox often brings one of the first proper groundswells of the autumn.
Average Spot conditions at Pease Bay in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Pease Bay 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 Pease Bay for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Pease Bay 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 Pease Bay.