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.

July at Caswell Beach offers generally small but rideable conditions for surfers, with an average swell height of 0.6m and a decent 7.6s period, providing some energy for maneuvering. The most dominant swell direction is from the west-southwest (WSW), contributing the largest share of waves—particularly in the 0.5-1m range (31.57%)—though most are under 1.5m. The wind is a limiting factor, with only 7% of conditions being ideal for surfing. Wind speeds between 10-30kph prevail, frequently from the southwest through west, which can create onshore chop, reducing wave quality. Cleaner sessions are rare but most likely with lighter winds from the east or northeast, though these directions bring smaller swells. Overall, expect small, playful waves with occasional rideable days when wind conditions align, but don’t anticipate powerful or large surf this time of year.