Oceanside - surf spot statistics

Oceanside, USA, offers consistent surf conditions year-round, with ground swell dominating the majority of the time, peaking from May to September at 92–96%. However, the best surf months are typically late fall and winter—November through February—when ground swell remains strong (75–83%) and wind conditions improve slightly compared to summer. During these months, mean swell sizes hover around 0.8–0.9m, with offshore or lighter onshore winds more likely (37–40% good wind conditions). Summer (May–September) sees extremely reliable ground swell (95+%), but strong onshore winds prevail (bad conditions 76–79% of the time), making sessions challenging despite the consistency. Swell size drops marginally in summer (0.8m), and while there’s almost no flat days, wind quality is the limiting factor. Spring (March–April) and early fall (October) are transitional periods, with still-decent ground swell (83–89%) but worsening wind odds (70–75% bad winds). For the best balance of swell and favorable winds, target late autumn or winter, though summer can work if you prioritize wave frequency over wind conditions.

February at this surf spot offers a mix of manageable conditions with some good surfing opportunities. The average swell height is 0.9m with a solid 13.7s period, indicating clean, well-spaced waves, though often on the smaller side. The dominant swell direction is from the W, WSW, and SW, providing the best rideable waves, particularly in the 0.5-2m range. There's a decent chance (36%) of favorable offshore or light winds, mostly from the N-NE sector, which helps keep the surf clean. However, stronger onshore winds (W-WNW) occasionally disrupt conditions, especially in the afternoons. The best sessions will likely come during W or WSW swells in the 1-2m range, paired with light NNE winds. While bigger days (over 2m) are rare, the spot works well for intermediate surfers when the wind cooperates and the swell direction aligns. Expect smaller, more playful waves early in the morning before winds pick up.