Ral Island - surf spot statistics

Ral Island in Papua New Guinea offers surfable conditions year-round, though the best months for quality waves are from November to March. During this period, ground swell dominates (48-56% of the time), providing more consistent and powerful waves with mean swell sizes ranging from 0.7 to 1.0 meters. December and January are particularly good, with ground swell peaking at 55-56% and decent swell sizes. Wind conditions, however, are less favorable, with bad winds occurring 64-83% of the time, making offshore winds rarer but still possible. April and October are transitional months with a mix of ground and wind swell, but wind conditions improve slightly (29-35% good winds). Swell size drops to 0.6-0.7 meters, making them decent but not ideal for advanced surfers. From May to September, conditions deteriorate significantly, with low ground swell (2-20%), frequent flat spells (34-48% no swell), and small waves (0.5-0.6 meters). Wind conditions remain mostly poor, further reducing surf quality. For the best experience, target late November through early March when ground swell is strongest, despite challenging winds. If you prioritize cleaner conditions over wave power, April and October offer a compromise with slightly better winds and manageable swell. Avoid mid-year (May-September) when weak swells and onshore winds prevail.

October at Ral Island offers generally small but rideable surf, with an average swell height of 0.6m and a solid 10.5s period, suggesting clean and well-spaced waves. The swell is predominantly from the NNE (31.85% of waves in the 0.5-1m range) and N (9.8% in the same range), with occasional contributions from NNW and NE. While most waves stay below 1.5m, the consistency from the northern quadrant ensures workable conditions, though bigger days are rare. Wind is the limiting factor—only 29% of the time is it ideal (likely light offshore or glassy), with ENE to ESE winds (10-30kph) being most common, potentially creating choppy or cross-shore conditions on many days. Expect smaller, manageable surf with occasional clean sessions when wind aligns, best suited for longboarders or those content with playful waves rather than heavy barrels.