Conditions at Bondi in December
December: Summer Kick-Off and Shorter Periods
December is the start of the Bondi low season. The average swell height drops to around 5ft (1.5m) and the period stays short at 8.3s, so most surf is fun-size rather than critical. The swell mix is dominated by ENE (16.7 percent), SE (15.1 percent), ESE (13.1 percent), and SSE (18.3 percent), with S swell largely gone. The energy is often windswell from the NE/E quadrant, which can be clean on the sets but lacks the power of Southern Ocean groundswell. Wind is the main enemy: offshore N/NW quadrant flow is down to just 14 percent, onshore S/SSE/SE wind reaches about 35 percent, and the ideal-wind window is only 27 percent. Mornings are the only time to score, before the seabreeze turns things lumpy. Water temp warms to 21.5°C, air temps average 21.2°C, and summer storms bring 2.4mm/day of rain. It's still Bondi, so anywhere else in the world would be stoked to have these waves, but locals know summer is about early sessions and small-wave gear.
Average Spot conditions at Bondi in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at Bondi 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 Bondi for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Bondi 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 Bondi.