Conditions at Apollonas in September
September: Signs of Life in the North
September is a bridge month; the meltemi is still strong, but the northern swell starts to turn more organized at the margins. The average swell height drops to 0.9m (3ft), the period is 4.8s, and NNW still accounts for 58.9% of the swell. N swell doubles to 11.2%, and the full N/NE window totals 12.5%. However, the accompanying wind remains mostly NNW (55.4%) or N (10.7%), so the surface is usually chopped. Offshore S-SW winds total only 13.7% and ideal wind sits at 2%, making clean conditions very hard to find. When a late-season cold front pushes through, your window will be short - often a single afternoon before the next NW blow. Water temperature is still warm at 24.4°C, air temperatures average 23.3°C (min 17.1°C, max 31.5°C), and rainfall starts to creep back to 0.46mm/day. Say goodbye to summer, but don't expect quality waves just yet.
Average Spot conditions at Apollonas in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Apollonas 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 Apollonas for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Apollonas 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 Apollonas.