The Streets seasonal overview
Best Surf Season (October - March)
The North Atlantic winter pattern delivers the most consistent and sizeable east-to-northeast swell to The Streets. During these months, average wave heights hover around the 0.9-1.0m mark with average periods in the 7.5-8.5s range, offering plenty of rideable, punchy surf. The frequency of offshore winds from the SW-WNW quadrant peaks at 10-15% of the time, providing cleaner conditions more often. Stronger low-pressure systems tracking along the coast can generate powerful long-period swell from the NE and ENE, occasionally pushing into the 'pumping' and 'firing' categories (1.5-2.5m). While the onshore wind still dominates, the increased swell energy and better windows of offshore flow make this the prime time for The Streets.
Fair Surf Season (April & September)
April and September serve as transitional months. Swell heights drop to around 0.8m on average, and periods remain reasonable but the frequency of ideal offshore wind decreases to around 12%. September benefits from a slightly longer average period (8.6s) as early-season tropical systems or distant storms send pulses of longer-period energy. However, wind consistency is a challenge – the trade winds begin to strengthen in spring and persist into early autumn. Expect a mix of small to fun-sized waves, with occasional better days when the wind aligns.
Low Surf Season (May - August)
The summer months bring a significant downturn in surf quality at The Streets. Average wave heights drop below 0.7m, often in the 'too small' to 'small' range, with periods lingering in the average zone. The east to southeast trade winds lock in for most of the summer, blowing directly onshore and ruining the wave surface. Ideal offshore wind occurs only 9-11% of the time. The predominant swell from the east and southeast is typically local windswell or small trade wind swell, lacking the power of winter groundswell. This is the low season – best for groveling boards and patience, as the occasional long-period hurricane swell or distant storm can fire up the spot, but it's rare.
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Conditions at The Streets in August
August: A Glimmer of Hope from the Tropics
August sees a slight bounce in average swell height to 0.6m with a period of 7.7s – still small but with a touch more energy. The swell direction is split between E (32.8%) and ESE (35.6%), but the appearance of ENE (10.9%) and NE (4.7%) indicates the start of tropical storm activity that can deliver pulses of longer-period swell. Offshore wind frequency holds at 11%. The wind rose continues to show strong ESE (13.8%), E (10.8%), and SE (11.5%) onshore flow. However, passing hurricanes or tropical depressions can briefly alter the wind pattern and send in groundswell from the east with period in the 10-14s range, turning the surf from flat to 'pumping' overnight. August remains mostly poor, but has the highest potential for a surprise swell.
Average Spot conditions at The Streets in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at The Streets 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 The Streets for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at The Streets 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 The Streets.
