Nago - surf spot statistics

Nago, Papua New Guinea, offers surfable conditions year-round, but the best months for surfers are from October to March when ground swell dominates and wave consistency is higher. During this period, the mean swell size ranges from 0.7m to 1.0m, with ground swell percentage peaking at 55-56% in December and January. Wind conditions are less favorable, with good wind days averaging only 26-39% from November to March, but the swell quality compensates for the often onshore or cross-shore winds. The worst months are from May to September, when no-swell days increase significantly (34-48%), ground swell drops below 20%, and mean swell size decreases to 0.5-0.6m. Wind conditions deteriorate further in these months, with bad wind probabilities exceeding 77%. April and November are transition months, offering a mix of ground and wind swells, but November stands out as a better option due to higher ground swell influence (48%) and slightly improved wind conditions (39% good winds). For consistent, quality waves with manageable wind interference, target December through February, accepting that wind conditions may not be perfect but swell reliability is strongest. The summer months also bring larger waves compared to the rest of the year, making them the prime surf season despite the higher likelihood of unfavorable winds.

In September, Nago typically experiences small to very small surf conditions, with an average swell height of just 0.5m and a decent average period of 8.8s, indicating occasional well-organized but weak groundswells. The majority of waves come from northerly to easterly directions (NNE, NE, and E), though most remain below 1m—only about 6% of waves exceed 1m, primarily from E and ESE directions. Wind conditions are mixed: offshore or light winds (ideal for surfing) occur only 19% of the time, while moderate to strong onshore winds from E, ESE, and SE directions are frequent, especially in the 10-30kph range. This can create choppy or blown-out conditions, particularly when combined with small swells. Advanced surfers might find rare, clean sessions when light winds align with the infrequent 1-1.5m pulses from the E quadrant, but overall, September leans toward subpar surf with inconsistent waves and challenging wind patterns. Don’t expect much power—this is a month for grovelers or longboarders on the smallest days.