Surf forecastStatisticsHistorical report

Neixpa seasonal overview

Best Surf Season (December - February & July - September)

The heart of the surf year at Neixpa pulses during two distinct windows. Winter delivers reliable, long-period groundswells from the west and west-southwest, often generated by powerful North Pacific storms that refract into the south-southwest-facing coast. Combined with the highest occurrence of offshore winds from the north through northeast, December through February produce clean, punchy waves averaging 1.2-1.3m with periods around 13.7 seconds—perfect for lined-up walls. Summer flips the script as the Southern Hemisphere roars to life, sending direct, thick SSW and S swells across the equator. July through September see average wave heights climb to 1.5-1.7m, periods remain in the 13-second range, and wind ideal stays above 30%. These are the months when the offshore winter and powerful summer groundswell combine for the most consistent quality surf.

Fair Surf Season (March, June, October, November)

Transitional months bring a mix of potential and frustration. In March, swell energy remains high (1.4m average, 13.8s period), but wind ideal drops to 16% as the trade winds strengthen—morning sessions can still score clean, glassy conditions before the onshore builds. June offers a preview of peak summer with strong SSW swells (66.7% of all wave energy) and a rising wind ideal (23%), yet frequent westerly breezes often chop up the surface. October and November feature lingering southern swell and a return of cooler air, with wind ideal hovering around 31-32%. Expect solid 1.3-1.5m waves and long-period lines, but the windows of truly clean surf can be short-lived. These months reward those willing to be patient and pick the days when the wind aligns.

Low Surf Season (April, May)

Spring brings the most challenging conditions for Neixpa. Despite the largest average swell heights of the year (1.5m) and the longest periods (14.1 seconds), the wind ideal plummets to a mere 10-12%. The dominant swell directions shift to direct SSW and S, which would be perfect if the wind cooperated, but the easterly trade winds strengthen and often swing onshore, creating choppy, bumpy surf. Occasional early-morning glass-offs can yield clean, fun-sized waves, but overall, April and May are best tackled with a groveler or a forgiving shortboard. These months serve as a reminder that even great swell needs the right wind to light up.

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Conditions at Neixpa in September

September: Peak Size and Mixed Conditions

September delivers the largest average wave height of the year at 1.7m, with a period of 13.0 seconds. The swell direction is still dominated by SSW (58.3%) and S (20.6%), but now SW (13.7%) begins to creep back in. The wind ideal remains strong at 30%, although early season tropical activity can inject variable wind patterns. The high size means more pumping, firing surf for the experienced, while the 1-1.5m range also offers fun, rippable waves. Onshore westerlies still occur (W 18.2%, WSW 9.3%), so picking the right tide and early/late windows is key. This is a month of power and potential.

Average Spot conditions at Neixpa 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 Neixpa 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 Neixpa for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Neixpa 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 Neixpa.

Swell with good wind

Swell with good wind by size