Port Mary - surf spot statistics

Port Mary offers the most consistent and favorable surfing conditions during the winter months, particularly from December through February. During this period, ground swell dominates (77–81%), providing powerful, well-organized waves with mean swell heights ranging from 2.5 to 2.7 meters—ideal for experienced surfers. However, wind conditions are less favorable, with bad onshore winds occurring 79–84% of the time, which can create choppy surf if not timed properly. The shoulder months of November and March still deliver solid ground swell (65–67%) and slightly better wind windows compared to peak winter. Spring (April–May) and fall (October) present a mix of ground and wind swells, with diminishing swell size (1.5–2.3m) but marginally improved wind conditions. Summer (June–September) is the least reliable season, with small, wind-driven swells (1.2–1.8m) and frequent poor winds, making it suitable only for beginners or longboarders on rare clean days. For quality waves, target December–February when ground swells are biggest and most consistent, though patience is needed for favorable winds.

June at Port Mary offers moderately consistent surf conditions with an average swell height of 1.3m and a solid period of 10.9s, providing decent energy for riding. The predominant swell direction is from the southwest, with WSW (17.18%) and SW (11.52%) delivering the most waves in the 1-1.5m range, often accompanied by larger sets up to 2.5m. This direction typically aligns well with the break, creating rideable walls and occasional punchy peaks. Winds are the limiting factor, with only 27% of days offering ideal conditions—mostly light offshore or cross-shore breezes from the north or northwest. However, southerly and easterly winds (10-30kph) frequently disrupt conditions, causing chop or onshore sloppiness. For experienced surfers, mornings often provide the cleanest sessions before winds pick up, though larger swells may require patience for optimal windows. Overall, June is a decent but inconsistent month here, best suited for surfers comfortable with variable conditions.