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.