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Conditions at Blacks Beach in September
September: Warm Water, First Sign of Fall
September shows the first faint stirrings of autumn while summer still holds the ocean. The average swell height returns to 1.0m (3.3ft) and the period is a nice 13.6s. The swell direction is still dominated by SW (41.8 percent) and WSW (34.0 percent), but W swell inches back up to 7.6 percent. The wind situation also improves slightly, with ideal offshore flow at 7 percent - still terrible, but better than August. The Eastern Pacific High is weakening, and you can start to see short windows of cleaner conditions, especially in the early mornings. Water temps remain warm at 19.7°C (67.5°F), air temps average 21.3°C (70°F), and rain is minimal at 0.18 mm/day. September is a month for transition: the best south swells from the hurricane belt are still possible, and the first NW pulses of the upcoming winter are just beginning to tease the coast.
Average Spot conditions at Blacks Beach in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Blacks Beach 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 Blacks Beach for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Blacks Beach 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 Blacks Beach.