St Ives - surf spot statistics

St Ives in the United Kingdom offers surfable conditions year-round, but the best months for quality waves and favorable winds are typically from late autumn through early spring, particularly November to February. During these months, ground swell dominates (65-82%), providing more consistent and powerful waves with mean swell sizes ranging from 2.0m to 2.4m. However, wind conditions are often challenging, with bad onshore winds prevailing 88-91% of the time, which can make sessions messy. The prime window is likely December to February when ground swell percentages peak, but surfers must be prepared for strong winds. Spring (April-June) and summer (July-August) see a significant drop in ground swell activity, replaced by wind swell (42-77%) and smaller waves (1.1-1.4m). While wind conditions improve slightly (15-17% good winds), the lack of consistent ground swell makes sessions weaker and less reliable. September and October mark a transitional period, with ground swell increasing again (37-53%) and better wave energy returning (1.3-1.7m). For surfers seeking cleaner conditions, these shoulder months might offer occasional good days, though wind remains a limiting factor. Overall, winter delivers the most powerful waves, but patience is required to score optimal wind alignment.

February at St Ives delivers solid winter surf conditions, with an average swell height of 2.3m and a strong 12.3s period, providing powerful, well-spaced waves. The dominant swell direction is from the west, with W, WNW, and WSW collectively producing the highest frequency of rideable waves, especially in the 1.5-2.5m range. Larger sets (over 2.5m) are occasional but manageable, peaking at 1.32% from the west. Swells from the east (E, ENE) also contribute, albeit less consistently, with smaller but cleaner conditions when paired with favorable winds. Wind conditions are the main limiting factor—only 12% of days offer ideal offshore or light cross-shore breezes, primarily from the northeast quadrant. Strong onshore WSW-W winds are frequent (20-50kph), creating choppy or blown-out surf, particularly in the afternoons. For advanced surfers, dawn patrols and westerly swells are the best bet, offering the cleanest and most powerful rides, though winter wetsuits and local knowledge for handling shifting peaks are essential. Expect a mix of challenging, wind-affected days and occasional epic sessions when winds align.