Guajataca seasonal overview
Best Surf Season (December - March)
The North Atlantic winter pattern brings the highest likelihood of northern swell to Guajataca, but don't expect any fireworks. Average wave heights hover around 0.7-0.8m with periods of 6.8-7.0s, offering small, rideable waves when the rare N or NNW pulse arrives. The trade-off is persistent ENE winds that blow over 30% of the time, often exceeding 20kph, creating side-onshore chop that messes up the surface. Offshore southerly winds (S, SSW, SW) occur only 11-18% of the time, so scoring clean conditions requires a perfect window between fronts. When it all comes together—a light SSW breeze and a short fetch from the north—Guajataca delivers fun, groveling waves on a longboard. This is as good as it gets here.
Fair Surf Season (April - May & October - November)
As the hurricane season approaches and departs, the trade winds ease slightly and the percentage of ideal southerly wind increases to 14-23%. However, swell energy drops as northern hemisphere storms become scarce. Wave heights settle at 0.6-0.7m with periods of 6.1-6.5s. The dominant swell shifts almost entirely to ESE and SE (80-90% of total), which wrap around the island but struggle to produce any power at this north-facing beach. Occasional E or ESE pulses can offer weak, rippable waves if the wind lays down, but it's mostly flat or gutless. Transitional months are best for low expectations and a log.
Low Surf Season (June - September)
Summer is the doldrums for Guajataca. The trade winds hammer the coast from the ENE and E, blowing over 40% of the time at moderate to strong speeds. Offshore wind drops to 8-17% frequency, and swell height bottoms out at 0.6-0.7m with periods of 6.0-6.3s. Almost 100% of the swell comes from the ESE and SE, directions that are completely blocked by the island's landmass. The rare exception is a tropical storm or hurricane tracking south of the island, which can send long-period south swell that wraps around but is often accompanied by dangerous winds and currents. For most intents and purposes, June through September is flat, choppy, and best spent on the south shore.
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Conditions at Guajataca in January
January: Winter's Fragile Window
January offers the highest northern swell component of the year, with NNW and N directions combining for about 4% of the total swell. The average wave height is 0.8m with a period of 7.0s, producing small, punchy waves on those rare north pulses. However, the vast majority of the swell comes from the ESE (62.7%), which is blocked by the island. Wind is the limiting factor: ENE and E directions dominate, with 37.7% and 32.5% occurrence respectively, often blowing 10-30kph. Offshore southerly winds (S, SSW, SW) total only 2%, so ideal conditions are fleeting. The best bet is to wait for a cold front to shift the wind to SSW and deliver a short NNW swell—these windows are narrow but can provide clean, rippable 1m waves.
Average Spot conditions at Guajataca in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Guajataca during January. 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 Guajataca for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Guajataca for January. 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 Guajataca.
