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.

January at Stent Road delivers solid surf conditions with an average swell height of 1.9m and a strong period of 11.6s, providing powerful, well-spaced waves ideal for experienced surfers. The most consistent swell direction comes from the WSW, contributing 16.8% of waves in the 1-1.5m range and 17.69% in the 1.5-2m range, with larger sets (2-2.5m) appearing 12.08% of the time. SW swells also play a notable role, particularly in the 1-1.5m range (7.06%). Cross-shore or light offshore winds, crucial for clean surf, occur only 13% of the time, with the predominant winds being W to SW at moderate speeds (10-30kph) leading to choppy or textured conditions. Larger swells (over 2.5m) are rare but possible, mainly from WSW (0.91%). Wind conditions are often less than ideal, with W, WSW, and WNW winds frequently blowing in the 10-30kph range, creating onshore or side-shore effects. Overall, expect punchy, mid-sized waves with decent power, though wind quality limits perfect sessions to a smaller window. Surfers should monitor forecasts for those rarer light wind days to score the best conditions.