Caswell Beach - surf spot statistics

Caswell Beach in the UK offers surf conditions that vary significantly throughout the year, with the best surfing months typically being during autumn and winter. The data shows that from October to February, the swell quality and size are more favorable for surfers, with ground swell percentages peaking in December (43%) and January (49%). These months also have larger mean swell sizes, averaging 1.0–1.2 meters, which is more suitable for intermediate and advanced surfers. Wind conditions, however, are consistently poor throughout the year, with bad wind conditions dominating 89–93% of the time, making clean surf sessions rare. The worst months for surfing are from May to September, when ground swells drop sharply (2–10%), and swell sizes diminish to 0.6–0.7 meters, often resulting in weak, wind-affected waves. Wind swells become more dominant during this period, but they provide less consistent and lower-quality surf. Overall, the prime window for good waves at Caswell Beach is late autumn through early winter, particularly November to January, when ground swells are more frequent and wave heights are more substantial—despite the challenging wind conditions that require careful timing for the best sessions.

Caswell Beach in March offers surfers a mix of conditions, with an average swell height of 0.9m and a decent period of 9.9s, suggesting generally clean, well-spaced waves. The swell is predominantly from the WSW (26.69% in the 0.5-1m range, 15.87% in 1-1.5m), providing consistent, rideable waves, though larger swells over 1.5m are less frequent (6.76% for 1.5-2m). SW swells also contribute with some bigger sets (3.33% in 1-1.5m, 1.78% in 1.5-2m). Wind conditions are less favorable, with only 11% of winds ideal for surfing. Westerly winds (WSW, W, SW) dominate, often blowing at 10-30kph (3.04-3.52% frequency), which can create chop, particularly on larger days. Cross-shore or light offshore winds are rare, so the best sessions will likely coincide with lighter wind periods or protected conditions. Overall, March delivers workable surf, but patience and timing are key to scoring cleaner waves.