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Random Beach Break • Statistics for September

Conditions at Random Beach Break in September

September: The Clean-Building Transition

September is where the surf season begins to turn. The average height is still modest at 0.6m (2.0ft), but the average period jumps to 9.9s, and ideal offshore wind reaches 37% - the second-best wind month of the year. Swell direction spreads across ENE (31%), NE (21%) and E (19%), with a clear northward shift that feeds the beach's preferred window.

This is a month of clean, long-period small waves. The southwest monsoon still supplies W/SW offshore flow, while the first northeast monsoon pulses and occasional West Pacific tropical cyclones add energy from the NE/ENE quarter. With water temperatures at 29.4°C, air temps at 27.8°C and rainfall at 6.0 mm/day, September is a great month for logging plenty of smooth, rippable waves without the onshore chaos of midwinter.

Average Spot conditions at Random Beach Break in September

Swell history for September

0 - 2
2 - 3
3 - 5
5 - 6
6 - 8
> 8 ft

Wind history for September

0 - 6.2
6.3 - 12.4
12.4 - 18.6
18.6 - 24.9
24.9 - 31.1
> 31.1 mph

Swell quality

Analyze the groundswell consistency at Random Beach Break during September. 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 Random Beach Break for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Random Beach Break for September. 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 Random Beach Break.

Swell with good wind

Swell with good wind by size

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