State's Avenue seasonal overview
Best Surf Season (October - March)
The North Atlantic roars to life during these months, with average swell heights holding steady between 1.3m and 1.4m and periods averaging 7.0-7.7 seconds. A powerful climatological uptick in extratropical storm activity drives consistent, punchy swell from the S through WSW windows. Meanwhile, offshore winds from the NW quadrant dominate, blowing clean and groomed lines onto the SSE-facing beach. December and January see the highest frequency of ideal wind (28%), often paired with crisp high pressure over the continent. When the right combination aligns, long-period groundswell wraps in with sunny skies and light offshore breezes -- that is when State's Avenue truly comes alive.
Fair Surf Season (April - May, September)
Transition months bring a mixed bag. April and May still see a notable presence of S and SSW swell (up to 16.9% and 17.9% respectively), but average wave heights dip slightly to 1.1-1.2m and periods hover around 7.2-7.3s. Offshore wind percentages drop to the low 20s, and onshore SSW breezes become more frequent, especially in the afternoon. September offers a glimmer of hope as longer periods return (8.4s average) and the first autumn cold fronts begin to stir the ocean. However, swell directions shift more easterly, reducing the number of truly clean days. These months reward patience and a willingness to pick the windows when synoptic patterns align.
Low Surf Season (June - August)
Summer settles in with average wave heights bottoming out at 0.9m and short, weak periods averaging 7.0s. The dominant swell comes from the SSE and S, which, while large in percentage, are often accompanied by onshore SSW winds that tear up the surface. Ideal wind drops to a meager 14-16% during these months, and the persistent thermal low over the interior pumps in afternoon sea breezes from the SW. The result is generally small, choppy conditions best suited for a log or a groveler. Early mornings can occasionally offer clean, fun-sized waves before the wind shifts, but consistent quality is hard to come by.
Loading chart...
Conditions at State's Avenue in April
April: Swell Shift
Average wave heights dip to 1.2m with a period of 7.3s. The swell direction distribution undergoes a major change, with S (16.9%) and E (13.2%) taking over as the dominant sources. The S swell is excellent for the spot, but the E component is less favorable. Offshore wind plummets to 22%, with WNW (8.8%) and NW (7.0%) still present but much weaker. Onshore SSW winds (13.3%) become a significant hindrance, often spoiling the afternoon sessions. The key is to target early mornings when the land breeze is still in effect. Despite the smaller average size, April can still offer fun, rippable waves if you pick the right days, especially when a cut-off low drifts close to the coast.
Average Spot conditions at State's Avenue in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at State's Avenue during April. 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 State's Avenue for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at State's Avenue for April. 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 State's Avenue.
