Conditions at Wewak in January
January: Monsoon Muscle and Cross-Offshore Clean
The northwest monsoon hits full stride, delivering an average swell height of 1.0m (3ft) with a solid 9.6s period. The dominant swell directions are N (23%), NNE (32.7%) and NNW (39.6%), meaning most of the open ocean energy is aimed right at Wewak's NE exposure. While NNW is slightly off-angle, it wraps in with surprising consistency. Winds are dominated by a strong NW (29.5%) and WNW (25.1%) flow, which creates a cross-offshore texture rather than a true offshore groom. With 41% ideal surfing conditions, the combo of large north swell and clean morning winds makes this one of the best months of the year. Water temps sit at 28.8°C, air temps at 27.3°C, and precipitation is relatively lower at 4.99 mm/day, keeping the tropics comfortable.
Average Spot conditions at Wewak in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Wewak during January. 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 January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Wewak for January. 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.