Llangennith - surf spot statistics

Llangennith in the UK offers varied surf conditions throughout the year, with the best months generally being autumn and winter when ground swells dominate and wave quality improves. From January to February, ground swells are most frequent (around 52-53%), with mean swell sizes around 1.3-1.4m. However, wind conditions are poor (87-89% unfavorable), often creating choppy surf. March sees a slight drop in ground swells (40%) and smaller waves (1.1m), maintaining challenging winds. Spring (April-June) brings weaker conditions, with ground swells dropping significantly (8-24%) and wind swells taking over. Swell size averages a modest 0.7-0.8m, and wind quality remains poor (87-91% unfavorable). Summer (July-August) is the least favorable, with minimal ground swells (3%), tiny waves (0.7m), and very poor winds (95% unfavorable). September marks a transition, with a slight uptick in ground swells (11%) but still subpar winds. October-December sees improving conditions, with ground swells increasing (23-46%), swell sizes growing (1.1-1.3m), though wind quality remains an issue (90% unfavorable). The prime window for surfers is late autumn to early winter (October-December), when ground swells return and wave heights increase, despite persistent wind challenges. January-February also provides solid swells but similarly tricky winds. For the cleanest and most powerful waves, advanced surfers should target the winter months, while summer offers only small, wind-affected conditions suitable for beginners or longboarders.

April at Llangennith offers mostly small to moderate surf, with an average swell height of 0.8m and a decent period of 9.2s, providing some rideable energy despite the modest size. The dominant swell directions are WSW and SW, which are favorable for this spot, contributing to 20.39% and 5.25% of waves in the 0-0.5m range, respectively, but also delivering larger swells—21.88% of waves from WSW and 8.23% from SW fall in the 0.5-1m range, with occasional bigger sets (1.5-2m+). However, clean conditions are relatively rare, with only 13% of winds being ideal (likely light offshore or sideshore). Winds are often from the W, WSW, or SW, which can be onshore and choppy—especially at higher speeds (10-30kph). Expect a mix of small, weak days and occasional punchy, mid-sized sessions, particularly when W/SW swells align with lighter winds. Patience and timing are key for scoring the best waves in April.