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Conditions at Dee Why Point in January
January: Peak Summer Trade Swell
January is peak summer at Dee Why Point, and the optimum NE, ENE, E and ESE swell directions dominate the roster, delivering a fun-sized 5ft (1.6m) average with a punchy 8.4s average period. This is classic trade-wind swell: peaky, racy and full of shoulders, but prone to bump when the wind is wrong. In January the wind is often wrong, with NE and ENE winds making up close to 28% of all observations and the broader N through SE quadrant pushing onshore for much of the day. Only 14% of the time does the wind turn truly ideal, usually on the early morning light SW or WSW flow before the sea breeze builds.
Water temperatures sit at a warm 22.8°C while the average air temperature reaches 22.7°C, and with 2.79 mm/day of rain this is humid, tropical-flavored summer surfing. Keep expectations in the waist-to-shoulder-high range, hunt the dawn clean-up waves, and accept that afternoons will likely be wind-affected and soft.
Average Spot conditions at Dee Why Point in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Dee Why Point 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 Dee Why Point for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Dee Why Point 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 Dee Why Point.