Surf forecastStatisticsHistorical report

North Street seasonal overview

Best Surf Season (October - March)

The North Atlantic cranks up the energy as autumn deepens, and by October, North Street starts feeling the full force of powerful extratropical storms tracking across the basin. These systems generate long-period swell from the E to SSE quadrant that directly unloads onto this southeast-facing beach. During these months, average swell heights hold steady in the 1.3-1.4m range with periods often pushing into the 7-8s zone, giving you clean, punchy waves. The key is the dominance of offshore winds from the W through NNW—especially strong WNW and NW flows that blow clean and groom the faces. When a low-pressure system stalls off the coast and sends in a solid E/ESE swell under a crisp northwesterly, North Street turns into a well-shaped, rippable machine. Expect consistent surf with frequent firing days.

Fair Surf Season (April & September)

April and September sit as transitional bridges between the peak seasons. April sees the swell average drop slightly to 1.2m, with periods around 7.3s, as the storm track shifts north. Swell direction becomes more variable, with a notable spike in S and SSE energy—still directional to the spot but often accompanied by onshore winds from the same quadrant. The wind ideal percentage dips to 24%. However, when a late-season nor’easter or a passing front aligns a nice E/ESE swell with a NW wind, you get fun, clean waves. September brings a resurgence: average heights climb back to 1.2m, but periods jump to 8.4s, hinting at longer-period groundswells. The wind ideal percentage recovers to 30%, and the frequency of offshore WNW/NW winds increases. It’s a month of potential—you’ll see a mix of smaller summer leftovers and early winter gems.

Low Surf Season (May - August)

Summer settles in with a lazy pulse. From May through August, average swell heights hover around 0.9-1.1m, and periods stay under 7.5s. The dominant swell energy shifts firmly to the SSE and S quadrants—often generated by local sea breezes or distant tropical waves that lack the oomph for this open stretch of coast. While the wind blows offshore (WNW) a decent 27-35% of the time, the wave heights frequently drop below waist-high, making it a groveling session. May can still serve up the occasional fun-size E/ESE swell, but June, July, and August are largely dominated by weak, short-period windswell. The long, sunny days and light winds create a glassy morning window, but expect mostly small, soft waves ideal for longboards and enjoying the water rather than chasing power.

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Conditions at North Street in January

January: Midwinter Muscle

January delivers the heart of winter with an average swell height of 1.4m and a period of 7.0s. The swell direction is well distributed, but the critical E through SSE quadrant accounts for a significant portion—nearly 23% of all waves. The south-southeast to south component (SSE & S) also brings a healthy dose of energy, though these often arrive with less favorable winds. Speaking of wind, the offshore category (W, WNW, NW, NNW) makes up a whopping 48% of all observations, with WNW and NW alone totaling 30%. This combination sets the stage for classic North Street: a solid east-southeast groundswell groomed by a strong northwesterly flow. The average period of 7s means the waves are punchy and rideable, not yet the long-period groundswell of later months, but still offering plenty of power for turns. With 29% of the time experiencing ideal wind-surf conditions, you can count on a few quality sessions each week.

Average Spot conditions at North Street in January

Swell history for January

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for January

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at North Street 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 North Street for your next trip in January.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at North Street 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 North Street.

Swell with good wind

Swell with good wind by size