Surf forecastSpot statisticsHistorical report

Middleton seasonal overview

Middleton, Australia, offers consistent surf conditions year-round, with ground swell dominating over wind swell in every month. The best time to surf here is during the autumn and winter months (April to September), when ground swell percentages peak above 90% and mean swell sizes range from 1.5m to 1.7m. Wind conditions improve significantly during this period, with good wind days occurring 29-34% of the time—far more favorable than summer months, where onshore winds are prevalent (bad wind conditions above 80% from December to March). The largest swells arrive from May to September, with August and September seeing the biggest waves (1.7m). While summer (December-February) still provides rideable swells (1.4m), the high frequency of poor wind conditions (over 85%) makes it less ideal. March and October serve as transitional months, offering decent ground swell but less reliable winds. For surfers seeking optimal conditions—solid, clean waves with minimal wind interference—the window from April to September is the prime season at Middleton.

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Conditions at Middleton in August

August at Middleton delivers solid surf conditions with a consistent swell averaging **1.7m** and a strong **13.6s period**, ensuring well-spaced, powerful waves. The dominant swell direction is **SSW**, accounting for over 60% of waves in the **1–2.5m range**, providing clean, rideable walls. **SW** and **S** swells also contribute, though less frequently. Wind conditions are key, with offshore (ideal) winds occurring **30% of the time**, mostly from the **N to ENE** quadrant, while onshore winds (W to SSW) can occasionally degrade conditions, particularly at higher speeds (20–40kph). The best windows will be during lighter NNE-ENE winds, which coincide with the predominant SSW swell for clean, hollow setups. Expect more **head-high to overhead waves** (1.5–2.5m) on good days, with occasional larger sets. Advanced surfers will find the most opportunities, though consistency and wind variability mean patience is required for optimal sessions.

Average Spot conditions at Middleton in August

Swell history for August

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for August

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Middleton during August. 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 Middleton for your next trip in August.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Middleton for August. 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 Middleton.

Swell with good wind

Swell with good wind by size