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Conditions at North Stradbroke Island in December
December: Summer Onshore Slop
December rounds out the year back in classic summertime form. Average swell is 1.1m (3-4ft) with a period of 8.1s. East swell is largest at 23%, with ESE (18%) and ENE (18%) close behind - solid directions for the island, but the wind is the fly in the ointment. SE winds blow 14% of the time, ESE 12%, E 8%, and SSE 9%, making the onshore component large and persistent. Ideal offshore flow from W/WNW/NW/NNW sits at 20%, almost all of it tied to early-morning NNW land breezes. Sea surface temp is a warm 25.3°C, air temps average 24.2°C, and rain returns to 4.50mm/day. If you want warm-water summer surf here, you will need to pick your windows carefully - dawn and dusk with light NW winds are your best bet.
Average Spot conditions at North Stradbroke Island in December
Swell history for December
Wind history for December
Swell quality
Analyze the groundswell consistency at North Stradbroke Island 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 North Stradbroke Island for your next trip in December.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at North Stradbroke Island 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 North Stradbroke Island.