Gaztetape seasonal overview
Best Surf Season (October - March)
The North Atlantic cranks into high gear from October through March, delivering the most consistent and powerful swell windows to Gaztetape. Average wave heights consistently hover between 1.6m and 2.1m with long-period (11-13s) groundswells from the WNW, NW, and NNW directions dominating the spectrum. These are the months when the offshore wind probability peaks, especially from the S and SSW quadrants, with ideal conditions occurring 40-45% of the time. The combination of fetching deep-water storms tracking across the Atlantic and cold fronts sweeping southward creates the perfect recipe for clean, lined-up surf at this exposed beach break.
Fair Surf Season (April - May & September)
During the shoulder months of April, May, and September, the surf quality takes a slight step back but still offers plenty of fun sessions. Average heights drop to the 1.2-1.5m range and wave periods shorten (9.9-10.8s), yet the dominant swell direction remains WNW and NW. The wind becomes more mixed: offshore flows from the S/SSW still occur roughly 29-32% of the time, but onshore breezes from the N, NNW, and NW increase as spring and early fall patterns shift. Expect punchy, rideable waves with occasional power pulses from passing lows.
Low Surf Season (June - August)
Summer brings the quietest conditions to Gaztetape. Average swell heights bottom out at just 1.0m, with shorter periods (8.8-9.2s) dominated by local windswell from the NW and NNW. The wind turns predominantly onshore – N, NNW, and NW breezes become the daily norm, making ideal offshore wind (S/SSW) a rarity at only 18-21% of the time. Waves are generally small-to-micro, choppy, and better suited for a longboard or a day off. Occasionally, a weak southerly wind shift can clean things up, but overall this is the low season for quality surf.
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Conditions at Gaztetape in August
August: Slight Uptick but Still Low
August remains firmly in the low season, with average swell height at 1.0m and period 9.2s. The swell is again dominated by NW (64.9%) and WNW (15.9%), plus NNW (16.4%). A few 1.5-2.0m waves appear, but most are small. Ideal wind percentages rise slightly to 21%, driven by S (3.0%) and SSW (2.5%) breezes. However, onshore N, NNE, and NNW winds still blow over 35% of the time. The surf is generally small and weak, best for a log or a summer funboard when the wind is light in the early morning.
Average Spot conditions at Gaztetape in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Gaztetape during August. 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 Gaztetape for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Gaztetape for August. 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 Gaztetape.
