Middleton - surf spot statistics

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.

April at Middleton delivers consistent surf with an average swell height of 1.5m and a solid 13.2s period, indicating well-organized, powerful waves. The dominant swell direction is from the SSW, accounting for the majority of rideable conditions (32.7% in the 1-1.5m range and 19.4% in the 1.5-2m range), offering clean, groomed lines ideal for intermediate to advanced surfers. Smaller but still surfable contributions come from SW and S directions. While wind conditions are only favorable 29% of the time, the most common onshore winds (SE to SSW) are often light to moderate (0-20kph), which may create manageable surface bumps rather than fully ruining the swell. Stronger winds (20-30kph) occasionally occur but are less frequent. Expect a mix of mid-sized, high-quality SSW swells with occasional wind-affected sessions—best suited for surfers who can adapt to variable conditions, especially early mornings when winds are lighter. The long-period energy ensures powerful, well-shaped waves when the wind cooperates.