Tywyn - surf spot statistics

Tywyn, located on the west coast of the UK, is a surf spot heavily influenced by Atlantic swells and prevailing winds. The best conditions for surfing are typically found in the autumn and winter months, when ground swells are more consistent and swell sizes are larger. The prime months are from October through February, with November to February offering the highest likelihood of good swell and manageable wind conditions. During this period, ground swell percentages peak (28-34%), mean swell sizes range from 1.3m to 1.5m, and wind conditions, though often challenging (bad winds 82-91%), still see occasional favorable days (9-18%). Winter months bring powerful swells, but strong onshore winds frequently create messy conditions. Spring and summer (April-September) see a significant drop in ground swells (2-23%) and smaller waves (0.6-0.8m), with wind conditions worsening (bad winds 80-97%). The worst time to surf is mid-summer (June-August), when swell energy is minimal, and onshore winds dominate. October and March can offer a balance, with decent swell (17-34%) and slightly improved wind odds (14-18% good winds). Surfers should target the colder months for bigger, cleaner waves, but be prepared for frequent wind-related challenges.

In April, Tywyn offers modest surf conditions with an average swell height of 0.7m and a decent period of 9.8s, indicating mostly clean, but small waves. The swell is predominantly from the WSW and SW directions, with the highest frequency (around 20%) coming as WSW swells in the 0-0.5m range, followed by SW swells (12% at 0-0.5m and 11% at 0.5-1m). Larger swells (1.5m+) are rare, mostly from the SW and WSW, accounting for just 2-5% of occurrences. Wind conditions are favorable for surfing only 20% of the time, with lighter winds (0-20kph) being most common. The dominant wind directions are NNE and NE, often blowing at 10-20kph, which can create cross-shore or slightly onshore conditions depending on swell direction. Surfers can expect smaller, mellow waves best suited for beginners or longboarders, with occasional clean days when SW swells coincide with lighter winds. However, consistent high-quality surf is unlikely due to the limited swell size and variable wind patterns.