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.

January in St Ives offers challenging but potentially rewarding conditions for experienced surfers. The average swell height is 2.4m with a solid 12.3s period, indicating powerful, well-spaced waves. The dominant swell direction is from the W to WNW, which often produces clean, well-formed waves, though larger sets can push overhead (2.5m+ waves occur 10% of the time). Cross-shore winds (SW-WNW) are frequent, with only 9% of conditions providing ideal offshore winds—typically from the E or NE. However, strong onshore winds (SW-WSW) are common, reaching 20-40kph over 30% of the time, which can create choppy or unruly surf. Winter swells are consistent but demand respect; smaller, cleaner days are rare but excellent when ENE or E winds align. Prepare for powerful, chilly sessions and prioritize wind-sheltered spots on bigger days.