Conditions at Manly in July
July: Coldest Water, Lowest Reliability
July sits at the heart of the Southern Hemisphere winter and produces the lowest ideal-wind percentage of the year at 14%. Swell height hangs around 5-6ft (1.7m), and the period is long enough at 9.5s to provide power, with SSE and S swells leading the pack and SSW/SW energy more frequent than at any other time. On paper, these southwestern sources are closer to Manly's optimal swell window. In reality, the same synoptic systems that generate those swells push the local wind into the WSW/W/WNW quadrant, making clean faces hard to find. When a transient high-pressure ridge slips underneath Tasmania and the wind goes NW, Manly can produce lumpy-but-rideable waves. The water hits the year's coolest 18°C, air temps hover near 14°C, and rainfall is low. Heavy rubber and patience are the keys to winter surf here.
Average Spot conditions at Manly in July
Swell history for July
Wind history for July
Swell quality
Analyze the groundswell consistency at Manly during July. 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 Manly for your next trip in July.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Manly for July. 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 Manly.