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.

August at Llangennith typically offers small to mid-sized surf with an average swell height of 0.7m and a decent period of 7.6s, suggesting somewhat clean but generally weak waves. The most consistent swell direction is from the WSW, accounting for a notable portion of waves in the 0.5-1m range (31%) and occasionally reaching 1-1.5m (12.6%). However, larger waves above 1.5m are rare, with WSW swells only hitting 2-2.5m 0.7% of the time. Winds are a mixed bag—only 5% are ideal for surfing, often coming from the SW to WSW. Unfortunately, winds from these directions frequently blow in the 10-30kph range (6.55-4.42%), creating chop or cross-shore conditions. Stronger winds (>20kph) are common, particularly from the SW and WSW, further reducing wave quality. While the spot can offer rideable waves, expect small, inconsistent surf with frequent onshore wind interference. Advanced surfers may find occasional cleanish sessions on mid-period WSW swells, but overall, August is far from prime season here.