Surf forecastStatisticsHistorical report

Bantham seasonal overview

Best Surf Season (October - March)

The North Atlantic flexes its muscles during these months, delivering consistent, powerful swells that light up Bantham's West-South-West facing beach. Average wave heights hover between 1.7m and 2.3m, with periods often pushing into the 9-second range, offering punchy, long-period lines that can hold serious size. The downside? Dominant onshore winds from the SW-W quadrants are frequent, spoiling the surface quality. However, when high pressure builds over Scandinavia or a cold front clears out, we see crisp offshore winds from the N to O directions, transforming the A-frame peaks into smooth, hollow waves. While the 'ideal wind' statistic sits around 11-15%, the raw power of the swell and the potential for epic sessions when the planets align makes this the prime time to charge Bantham.

Fair Surf Season (April - May & September)

As the Atlantic storm track begins to shift, swell heights drop to a more modest 1.2-1.4m range, and periods shorten to 7.9-8.5s. The trade-off is a noticeable increase in surfable wind conditions: April boasts a 21% ideal wind window, and May peaks at 22%, with more frequent intervals of clean offshore breezes from the NE and E. These months offer fun, rippable waves for the average surfer, especially on the better sandbanks. September mirrors this transitional feel—the ocean is still warm from summer, and the first whispers of autumn swells begin to stir. While not as powerful as winter, the combination of cleaner conditions and smaller crowds makes for a delightful, grovel-friendly season.

Low Surf Season (June - August)

Summer at Bantham is the calm before the storm—literally. Average swell heights bottom out at a meek 1.0m, with periods around 7.1-7.7s, delivering weak, short-period waves that rarely hold any shape. The onshore wind regime—dominated by SW, WSW, and W flows—ruins what little swell there is, making for messy, choppy conditions. Ideal wind percentages fall to 13-16%, and even the offshore windows (mainly from the NE and E) are often too light to clean up the small, gutless waves. This is the season for a longboard or a foamie, or perhaps a road trip to a more sheltered corner. The summer doldrums are real, but they make the return of autumn all the sweeter.

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Conditions at Bantham in May

May: Peak Spring Cleanliness and Small to Fun Swell

May sits at the sweet spot of shoulder season. Average swell height slips further to 1.2m and period to 7.9s, indicating a mix of small groundswell and building windswell. The swell direction is still strongly WSW (26.7%) and W (17.9%), but the energy is low. However, the onset of spring brings the best wind probabilities of the year: 22% ideal wind, with the highest offshore frequencies from ENE (9.2%), E (9.9%), and even ESE (4.4%). This creates many clean, glassy mornings with offshore winds cleaning up the small lines. Expect waves in the 1-2ft range, occasionally pushing to fun 3ft on the bigger swells. It's a fantastic month for longboarding and getting your foam fix without the winter crowds.

Average Spot conditions at Bantham in May

Swell history for May

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

Wind history for May

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

Swell quality

Analyze the groundswell consistency at Bantham during May. 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 Bantham for your next trip in May.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Bantham for May. 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 Bantham.

Swell with good wind

Swell with good wind by size