Stent Road - surf spot statistics

Stent Road in New Zealand is a consistent surf spot with year-round swell, primarily driven by ground swells, which dominate between 67-79% of the time. Wind swells contribute the rest, but there is rarely a flat day (0% no swell). The mean swell size increases from summer to winter, peaking at 2.5m from June to October, making these months ideal for larger waves. However, wind conditions are challenging, with bad winds (onshore or cross-shore) occurring 82-89% of the time year-round. The best balance of swell size and slightly improved wind conditions occurs in autumn (April-May) and late winter (August), where ground swells remain strong (76-79%) and mean swell hovers around 2.1-2.5m, though winds are still unfavorable 83-85% of the time. Summer (January-March) offers smaller swells (1.8-1.9m) and marginally better winds (13-18% good conditions), but the waves are less powerful. Overall, Stent Road is most rewarding for experienced surfers willing to tolerate tricky winds, with the biggest and cleanest opportunities likely in late autumn and early winter (May-July). For smaller but slightly more manageable conditions, February and March provide a modest window before winds deteriorate further into spring and summer.

In May, Stent Road delivers consistent surf conditions with an average swell height of 2.4m and a solid period of 12.4s, ensuring well-formed, powerful waves. The primary swell direction is from the WSW, contributing to the majority of rideable waves, particularly in the 1.5–2.5m range. SSW and SW swells also play a role, though WSW swells dominate with higher energy and better organization. Wind conditions are less favorable, with only 15% of days offering ideal offshore or light cross-shore winds (typically from the east or ENE). Onshore winds from the west and WSW are more common, creating choppier conditions, especially at higher speeds (20–40kph). For experienced surfers, May provides solid, sizable waves, but wind interference can limit the number of clean sessions—timing swells around lighter wind periods is key. Bigger days (over 2.5m) are less frequent but offer powerful, barreling sections when conditions align.