Surf forecastSpot statisticsHistorical report

Wewak seasonal overview

Wewak, Papua New Guinea, offers surfable conditions year-round, but the best months for quality waves and favorable winds are December through February, with a secondary window in November and March. During these months, ground swell frequency peaks (30-41%), and wind swell remains consistent (41-55%), ensuring rideable waves. The mean swell size hovers around 0.7m—small but sufficient for beginners and intermediates. Wind conditions are relatively better in these months, with 33-34% good wind days, though onshore winds still dominate (66-67%). From April to October, surf potential drops significantly due to a steep decline in ground swell (1-22%) and persistently poor wind conditions (79-93%). Swell size also diminishes to 0.5-0.6m, making sessions unreliable. May through September are particularly weak, with ground swell nearly absent (1-10%) and strong unfavorable winds (90-93%). October marks a transition as ground swell begins to rebuild (22%) but remains hampered by poor winds (90%). For the most consistent surf, target the wet season (December-February) when swell energy, frequency, and marginal wind improvements align best. However, even in peak months, expect frequent onshore winds and smaller waves—ideal for relaxed surfing rather than high-performance conditions.

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Conditions at Wewak in December

December at Wewak offers surfable conditions, though somewhat inconsistent and best suited for intermediate surfers. The average swell height is modest at 0.7m, with a decent period of 10.4s, providing some energy in the waves. Most swells come from northerly directions (NNE, NE, NNW), with the majority falling in the 0.5–1.5m range—ideal for smaller-wave surfing. Larger swells over 1.5m are rare, occurring less than 3% of the time and mostly from NNW/NW. Wind conditions are hit or miss, with only 34% being ideal (likely light offshore or side-shore winds from the NE quadrant), while stronger onshore NW/WNW winds (10–30+ kph) dominate 25–30% of the time, creating choppier conditions. Overall, expect smaller but rideable waves with clean mornings before winds pick up, though consistency isn’t guaranteed. Patience and timing will reward surfers with the best sessions.

Average Spot conditions at Wewak in December

Swell history for December

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for December

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Wewak during December. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Wewak for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Wewak for December. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Wewak.

Swell with good wind

Swell with good wind by size