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.
Loading chart...
Conditions at Bantham in December
December: Peak Power and Punishing Onshores
December is the climax of the Atlantic storm fury. Average swell height peaks at 2.2m, with a solid 9.2s period, and the swell directions are dominated by WSW (20.3%) and W (10.7%), with significant contributions from SW (9.5%). This means Bantham receives constant, heavy groundswell throughout the month. However, the wind statistics are the most punishing of the year: ideal wind frequency drops to just 11%, the lowest of all months. Onshore winds from WSW (12.7%), W (11.3%), and SW (10.6%) are relentless. The key to surfing December well is to hunt for the brief but intense windows of offshore flow associated with high-pressure wedges or the immediate wake of a cold front. These windows can produce 6-8ft, clean, hollow waves that are the stuff of legend. But be prepared to wait—and to battle crowds when the conditions line up.
Average Spot conditions at Bantham in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Bantham during December. 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 December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Bantham for December. 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.
