Cloud 9 seasonal overview
Best Surf Season (October - November & April - May)
The most promising windows for quality waves at Cloud 9 come during the transition months when the Northeast Monsoon (Amihan) begins to weaken or build. October stands out with an average 1.1m swell at 10.2 seconds and a 35% chance of offshore southerly winds—a rare alignment of moderate size and clean conditions. November offers larger 1.3m swell but ideal wind drops to 12%, so patience is key. April and May see the monsoon shift, with May delivering a 32% offshore wind frequency and fun-sized 0.8m swell that can still juice up on longer period pulses.
Fair Surf Season (December - March)
The heart of the NE monsoon season brings consistent, powerful swell from N through ENE, with average heights ranging from 1.3m in March to 1.7m in January and periods often exceeding 9.5 seconds. However, the wind is predominantly from the NE and ENE as well—onshore and often strong, degrading surface quality. Despite the pumping size, ideal offshore wind occurs only 3-6% of the time, meaning clean waves are fleeting. These months offer epic potential when a cold front or localized trough brings a southerly wind shift, but expect mostly wind-affected conditions.
Low Surf Season (June - September)
During the Southwest Monsoon (Habagat), the wind clocks around to the south and southwest, providing offshore flow at Cloud 9 up to 60% of the time in August. Unfortunately, the same pattern suppresses swell generation, with average heights bottoming out at 0.7m and periods dipping to 8.4-9.0s. The waves that do arrive are predominantly small, clean, and best suited for longboard or fun-shapes. While not the stuff of barrels, these months offer reliable, crowd-free surfing in silky conditions.
Loading chart...
Conditions at Cloud 9 in April
April: Monsoon Flicker
April sees a further drop in average swell height to 1.1m, but the period remains solid at 9.4s. The swell is overwhelmingly from the ENE (66%) and NE (27%), with the bulk of waves in the 0.5-1.5m range—a groveling size. Wind conditions are still largely onshore from the east and southeast (E 25%, ESE 17%), but the first signs of the summer pattern appear: southerly quadrants now account for 9% of the wind, a slight improvement over winter. Clean surf windows are still short and often weak, but the longer period groundswells from distant storms in the North Pacific can occasionally light up the reef at head-high plus. Patience and a keen eye on the forecast are essential.
Average Spot conditions at Cloud 9 in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Cloud 9 during April. 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 April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cloud 9 for April. 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.
