Surf forecastSpot statisticsHistorical report

Penascal seasonal overview

Best Surf Season (January - March)

During these months, the South Pacific winter swell is at its peak, delivering consistent, powerful groundswell from the SSW and SW. Average wave heights range from 1.4m to 1.6m with long periods of 13-13.5s, offering solid, rippable waves. The wind, however, is the limiting factor. Predominantly from the S and SSW, it creates onshore conditions that degrade wave quality. The statistical chance of an offshore breeze (from NNW, NW, or W) is slightly higher during this window, reaching up to 2% of the time. When a strong high-pressure system settles over the coast and aligns with a low-pressure trough generating swell, the combination can produce rare, glassy sessions with long, fast walls that make Penascal come alive.

Fair Surf Season (April - May)

Autumn sees the swell energy continue to build, with average heights peaking at 1.7-1.8m and periods holding at 13.6s. The swell direction becomes even more favorable, concentrated heavily from the SSW. However, the wind statistics show that ideal offshore wind occurrence drops to 0%. The onshore flow from the south intensifies, often blowing in the 10-20kph range, leading to bumpy, lumpy conditions for most of the day. The sheer power of the swell is undeniable, but the relentless onshore wind makes it a challenging period for clean surf. Dawn patrol offers the best chance for smoother conditions before the daily thermal gradient strengthens the southerly wind.

Low Surf Season (June - December)

From June through December, Penascal is in a perpetual low season for quality surf. While the South Pacific swell machine keeps pumping with average wave heights of 1.5-1.9m and periods of 12.8-13.2s, the wind remains stubbornly onshore from the S and SSW. Ideal offshore wind occurrences are 0% for every month except a negligible uptick in January-February. The combination of strong, consistent swell and persistent onshore wind means that surfers must be prepared for challenging, often choppy conditions. The rare exception occurs when a subtle land breeze from the east or northeast develops during stable high-pressure periods, but these windows are fleeting and unpredictable. Overall, the surf is consistent but rarely clean, making this a spot for the committed or the desperate.

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Conditions at Penascal in October

October: Swell Gradually Fading, Wind Still Dominant

October sees a slight reduction in average swell height to 1.8m, with period still a solid 13.2s. The swell direction is heavily SSW (86.6%), with less S component (7.4%) as the winter storm track begins to shift. Wave heights still lean toward the 1.5-2m (46%) and 2-2.5m (18.9%) categories, but the 1-1.5m range gains share (21.5%). Wind patterns are depressingly consistent: SSW winds (48.1%) and south winds (44%) rule, with speeds in the 10-20kph range. Offshore wind remains at 0%. The transition to spring brings occasional high-pressure systems that can weaken the southerly flow, offering rare days of lighter winds. When the wind drops to near-calm in the morning, the long period swell can produce glassy, clean waves for a few hours. These brief windows are the only reprieve from the otherwise onshore conditions.

Average Spot conditions at Penascal in October

Swell history for October

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

Wind history for October

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

Swell quality

Analyze the groundswell consistency at Penascal during October. 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 Penascal for your next trip in October.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Penascal for October. 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 Penascal.

Swell with good wind

Swell with good wind by size