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.

June at Caswell Beach offers generally small but rideable conditions, with an average swell height of 0.6m and a decent period of 8.2s, suggesting some potential for clean, albeit weak, waves. The dominant swell direction is from the WSW (34.32% under 0.5m, 30.69% 0.5–1m), which aligns well for this spot, producing the most consistent and slightly larger waves (peaking at 1.89% in the 1.5–2m range). SW swells also contribute, occasionally pushing into the 1.5–2m range with better energy (2.66% 0.5–1m, 1.33% 1–1.5m). However, larger swells over 2m are rare, limiting high-performance surfing. Wind conditions are less favorable, with only 9% of days offering ideal offshore or light cross-shore winds. The prevailing winds are from the WSW and W (5.65% and 5.29% at 10–20kph, respectively), often blowing onshore or sideshore, creating choppy or less clean conditions. Stronger winds (20–30kph) are frequent from these directions, further reducing wave quality. Overall, June is a marginal month for surfing here—best suited for beginners or longboarders on smaller days, with occasional mid-sized swells when winds align. Patience is key, as clean sessions are infrequent.