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.

In May, Llangennith sees moderate surf conditions with an average swell height of 0.7m and a decent period of 8.6s, offering rideable but often small waves. The swell direction is predominantly from the southwest (SW) and west-southwest (WSW), which aligns well with the beach's orientation, providing the most consistent and surfable waves. Notably, WSW swells account for a significant portion of the swell distribution, particularly in the 0.5-2.5m range, ensuring frequent surfable days. However, wave heights are generally on the smaller side, with the majority falling below 1.5m, making it more suitable for longboarders or beginners. Wind conditions are less favorable, with only 10% of days offering ideal offshore or light cross-shore winds. The prevailing winds tend to come from the west and southwest, often blowing in the 10-30kph range, which can create chop or make conditions messy. Stronger winds (over 20kph) are fairly common, reducing surf quality. For advanced surfers, the best sessions will likely occur when WSW swells combine with lighter winds, though opportunities for powerful or hollow waves are limited this time of year. Overall, May delivers consistent but small to medium-sized surf with variable wind conditions—worth checking for clean days but not peak season performance.