Conditions at Big Rock in January
January: Peak NE Monsoon Gloom
January is one of the weakest months for surf quality at Big Rock. The wave rose is dominated by E and ENE swell, which are the right directions for this ENE-facing beach, but the average wave period is only 6.9s and the average height is 0.9m (3ft), with 0.5-1m (1.5-3.3ft) waves making up more than 60% of the readings. The problem is the wind: NE and NNE winds pile in from the onshore quadrant nearly 56% of the time, and if you add ENE/ESE flow the onshore share is close to 90%. Ideal offshore wind from SW/WSW/W/WNW occurs just 4% of the time. As a result, the all-too-frequent ENE/E swell is chopped up by the same-direction wind, creating bumpy, short-period waves that rarely form clean faces. Air temperatures stay near 24°C and water temp is 26.4°C, so it is warm, dry (0.51mm/day), and frustrating.
Average Spot conditions at Big Rock in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Big Rock 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 Big Rock for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Big Rock 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 Big Rock.