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.

In October, Caswell Beach offers surfable conditions with an average swell height of 0.9m and a decent period of 8.8s, suggesting generally manageable waves with some energy. The most dominant swell directions are WSW and SW, accounting for the majority of rideable waves, particularly in the 0.5-1.5m range, with WSW providing the highest frequency of mid-sized waves (1-1.5m). Stronger swells (over 1.5m) are less frequent but possible, mostly from SW and WSW directions. Wind conditions are less favorable, with only 8% of instances offering ideal offshore or light cross-shore winds for surfing. The predominant winds come from SW to W, often blowing onshore at 10-30kph, which can create choppy conditions. Surfers should target days when winds are lighter and more easterly (ENE-E) for cleaner waves. Overall, October is an inconsistent month but can deliver decent sessions with the right wind-swell alignment, particularly when WSW swells coincide with lighter winds.