Surf forecastStatisticsHistorical report

Stimpy's seasonal overview

Best Surf Season (October - March)

The heart of the northeast monsoon transforms Stimpy's into a powerful, heavy-wave magnet. From October through March, the North Pacific pumps long-period swell from the NE quadrant directly into this east-northeast-facing beach. Average wave heights surge from 1.1m in October to a peak of 1.7m in January, with periods consistently in the 9.5-10.2s range – solid and punchy. The trade-off is brutal: onshore winds dominate, blowing from the same NE-ENE sector over 85% of the time. Ideal wind windows (SSW-W) are scarce, often dropping to just 1-4% in the deep winter months. Yet, when a high-pressure system slides south and a weak trough brushes the Philippines, offshore westerlies align with a building NE groundswell. Those are the days when Stimpy's truly fires – hollow, 1.5-2.5m plus walls with 10-14s periods. Patrol the charts for those brief synoptic setups.

Fair Surf Season (April - May & September)

During the shoulder months, the northeast monsoon relaxes and the southwest monsoon begins to stir. Swell heights drop to the 0.8-1.1m range, but the quality can actually improve. April and May still see a solid ENE swell component (66.3% and 66.7% respectively) at 1-1.5m, while the wind shifts more southerly. Ideal wind percentages jump to 4% in April and 19% in May – still low, but a noticeable step up from winter. September offers the best compromise of the fair season: average swell 0.8m (often fun-sized 0.5-1.5m from NE and ENE) with a remarkable 53% offshore wind frequency. The wave period creeps back up to 9.5s, giving the small swell extra push. You'll be groveling on a fish or a log, but the conditions will be clean and playful.

Low Surf Season (June - August)

The southwest monsoon dominates the summer months, bringing persistent offshore winds (SSW-W) 30-55% of the time. However, the swell engine is nearly silent. Average wave heights bottom out at 0.7m with periods averaging only 8.4-9.0s – choppy, low, and messy by default. June through August sees the swell direction become more scattered, with ENE and E windswell making up the bulk of the tiny 0.5-1m waves. While the rare tropical depression can spin up a short-period pulse from the south or west, these are directional mismatches for Stimpy's. This is strictly a flat spell, best suited for beginner lessons, longboard cruises, or booking a trip to a more exposed reef. If you absolutely have to surf, dawn patrol with a westerly breeze can produce groomed but micro waves.

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Conditions at Stimpy's in September

September: Swell Returns, Winds Cooperate

The northeast monsoon starts to stir, raising average swell to 0.8m with a 9.5s period – a noticeable upgrade from summer. Swell from NE and NNE jumps to 38.5% (up from 13.8% in August), and ENE drops to 22.7%. Wave heights begin to show more 1-1.5m range (14.9% combined). Winds remain favorable: offshore (SW-W) at 53% of the time, with westerly winds often 20-40kph. September is the sweet spot of the shoulder season. The combination of building swell and consistent offshore winds creates the most surfable conditions of the year. You can expect fun, punchy 1-1.5m waves on most days, with occasional 2m sets when a typhoon passes far north. The period is solid enough to generate power, and the wind direction keeps the faces clean. Paddle out with a shortboard and enjoy.

Average Spot conditions at Stimpy's 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 Stimpy's 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 Stimpy's for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Stimpy's 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 Stimpy's.

Swell with good wind

Swell with good wind by size