Blacks Beach seasonal overview
Best Surf Season (October - March)
The North Pacific stirs to life during these months, and Blacks Beach reaps the rewards. A climatological ramp-up in extratropical storm activity across the Pacific sends consistent, long-period swell trains marching toward the California coast. Dominant swells from the W and WSW – ideal windows for this west-facing gem – push average heights into the 1-1.5m range, with plenty of overhead-plus days when storm tracks align. The real key, though, is the wind. As high pressure builds over the interior West, offshore flow from the east (E, ENE, ESE) kicks in 40-50% of the time, grooming those powerful, 12-14 second lines into pristine, rippable walls. This is prime time for Blacks Beach.
Fair Surf Season (April & September)
Transition months bring a mixed bag. In April, the Pacific storm track starts to weaken, but lingering WNW and W swells still produce fun, shoulder-high waves with an average period of 13.3s – plenty of punch. However, offshore wind windows shrink to about 19%, and onshore westerlies begin to creep in more often, so you need to pick your days. September sees a similar pattern: a shift from summer southwesterly slop to more westerly energy, with long-period groundswell still in the mix. Offshore flow returns to 7% of the time, offering occasional clean windows between the prevailing afternoon seabreezes. It's not prime, but it's far from flat.
Low Surf Season (May - August)
Summer is the off-season at Blacks Beach. The Pacific storm machine goes quiet, and the dominant swell shifts to the SW and WSW – still rideable, but often coming from a less optimal angle. Average heights hover around 1m with plenty of 0.5-1m days. The real killer is the wind. The North Pacific High strengthens, driving persistent onshore westerlies that chop up the swell and blow out the lineup. Ideal offshore wind plummets to 1-8% during these months, making clean conditions a rare, precious commodity. When the combination of a long-period SW swell and a rare morning offshore breeze aligns, though, you can score some glassy, fun-sized waves. It's a waiting game.
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Conditions at Blacks Beach in January
January: Deep Winter Gold
January is the peak of the North Pacific storm train. Swell charts are dominated by W (62.8% of all swell energy), followed by WSW at 25.2%, and a smattering of SW (6.8%). The bulk of this swell falls in the 0.5-1m (34.1%) and 1-1.5m (22.3%) ranges, but over 6% of the time you'll see chest-to-head-high waves in the 1.5-2.5m band – firing for the point. Average wave period clocks in at 12.6 seconds, delivering powerful, lined-up sets. The wind is your friend: offshore flow blows 49% of the time, with robust contributions from ENE (13.1%), E (8.6%), and ESE (5.6%) directions. These easterlies groom the long-period swells into clean, hollow walls. Get on it early before the afternoon seabreeze kicks in, but even then, the consistent offshore windows make this a top-tier month.
Average Spot conditions at Blacks Beach in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Blacks Beach 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 Blacks Beach for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Blacks Beach 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 Blacks Beach.
