Surf forecastSpot statisticsHistorical report

Cloud 9 seasonal overview

Cloud 9 in the Philippines is best known for its powerful and hollow waves, particularly when conditions align during the swell season. The data shows that the most consistent and favorable surfing conditions occur from September to November, with October standing out as the prime month. During these months, ground swells—which produce cleaner, more organized waves—peak at 38-42% of the swell composition, significantly higher than the rest of the year. Swell size is respectable, averaging 0.9-1.2m, with October offering the best balance between size and quality. Wind conditions also improve in this period, with good winds (offshore or light cross-shore) occurring 38-55% of the time, reducing the frequency of onshore chop that plagues other months. The earlier part of the year (January to April) sees larger swells (1.4-2.3m), but these are predominantly wind swells (79-87%), which are less ideal for high-performance surfing. Additionally, bad wind conditions dominate (90-96%), making clean waves rare. From May to August, wind conditions progressively improve, but swell size drops significantly (0.8-1.0m), and wind swells still dominate, making sessions inconsistent. December sees a return of larger swells (2.1m) but is hampered by poor wind conditions (92% bad winds). For advanced surfers seeking the best performance waves, the September-November window is optimal, offering the highest percentage of clean ground swells and manageable wind conditions.

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Conditions at Cloud 9 in September

In September, Cloud 9 offers generally favorable surfing conditions with a solid mix of swells and manageable winds. The average swell height is 0.9m, paired with a strong 10.0s period, ensuring well-formed and rideable waves. The predominant swell directions are NE and ENE, contributing the highest frequency of waves in the 0.5-1.5m range, making up over 50% of conditions—ideal for intermediate to advanced surfers. The wind is favorable 55% of the time, mostly light to moderate (0-20kph), predominantly from the SE to SSE directions, which helps maintain clean faces. However, stronger winds can occasionally come from the W to WSW, potentially causing chop. While larger swells (1.5-2m+) are less frequent, they provide power for those seeking more challenge. Overall, September delivers consistent, fun waves with good shape, though wind variations require monitoring for optimal sessions.

Average Spot conditions at Cloud 9 in September

Swell history for September

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

Wind history for September

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

Swell quality

Analyze the groundswell consistency at Cloud 9 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 Cloud 9 for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Cloud 9 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 Cloud 9.

Swell with good wind

Swell with good wind by size