- Home
- ...Australia
Australia- Merimbula Bar
Conditions at Merimbula Bar in September
September: Spring Transition
September is a study in contrast. The swell menu still looks epic: SSW reaches its yearly peak at 14.9%, S posts 12.3%, and the optimal SE-SSW share is 46%. Periods drop to 8.6s, however, and the onshore wind regime becomes more aggressive as the land heats up. One afternoon you can be on a clean 5-6ft (1.5-1.8m) SSW groundswell; the next, a S/SSW seabreeze turns it into sectiony slop.
Ideal wind drops to 33%, and while NNW still appears 10.2% of the time, S (6.2%), SSE (3.8%) and SSW (11.1%) onshore flow is building. Spring warmth is just arriving: air temps average 13.6°C, water sits at 14.8°C, and rainfall is a modest 1.71mm/day. Chase the dawn patrol and the frontal swell windows.
Average Spot conditions at Merimbula Bar in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Merimbula Bar 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 Merimbula Bar for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Merimbula Bar 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 Merimbula Bar.