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 January offers surfable waves with an average swell height of 1.2m and a solid period of 10.6s, indicating decent energy and quality for winter conditions. The swell direction is predominantly from the southwest to west-southwest, with the strongest contributions coming from WSW (accounting for 10.6–20.7% of waves in the 0.5–2m range). This aligns well with the beach's orientation, creating rideable waves, though wind conditions are less consistent—only 10% of the time is the wind ideal for surfing. Winds from the southwest and west-southwest are common but often brisk (20–40kph), which can create choppy or cross-shore conditions. Smaller, cleaner waves occur when winds are lighter and more easterly, but these are rarer. Expect a mix of surfable days, with the best sessions likely when WSW swells coincide with lighter winds. Winter storms can occasionally push waves into the 2.5m+ range (mainly from SW/WSW), but these are less frequent. Overall, January provides opportunities for surfers willing to work with variable conditions, prioritizing WSW swells and watching for brief windows of favorable winds.