Belmar - surf spot statistics

Best Surf Season (October - March)

The heart of the North Atlantic storm track delivers consistent, powerful swells to Belmar. Average wave heights hover around 1.3m with periods often pushing into the 7-8 second range, providing punchy, rideable waves. The dominant swell directions are from the E and ESE, which line up perfectly with our east-southeast facing beach. Meanwhile, synoptic systems frequently trigger strong offshore winds from the W and WNW, cleaning up the faces. This is when Belmar turns on—expect solid, fun-sized surf with occasional pumping days as Nor'easters set up in the ideal fetch.

Fair Surf Season (April & September)

During these shoulder months, the ocean is in transition. April still sees a high percentage of E/ESE swell (over 27% combined), but the wind regime becomes more variable with an increase in onshore southerly flow. September benefits from a resurgence of tropical and early-season extratropical energy, with average wave periods peaking at 8.3s—the highest of the year. However, wind consistency drops, and the window for clean offshore conditions narrows. You'll find plenty of fun, rippable days, but the magic isn't as reliable as mid-winter.

Low Surf Season (May - August)

Summer settles over the Jersey Shore. Average swell heights drop to 0.8–1.0m, and the dominant swell direction shifts to SSE and S—a poor angle for Belmar's exposure. Although the percentage of ideal offshore wind days is actually quite high (up to 50% in July), the waves are often too small and weak to surf with enthusiasm. The average period remains around 7 seconds, but the lack of size and direction means constant groveling. If you're on a log or longboard, there are fun mornings with light westerlies, but for shortboard performance, it's a waiting game until autumn.

March: Transition Underway

March holds onto winter's momentum with a 1.3m average swell and a period of 7.5s, the longest of the winter months. E and ESE swells combine for 21.1% of the wave spectrum, still very favorable. However, the wind ideal percentage drops to 32% as southerly winds begin to creep in, often adding chop. The days can be a mixed bag—some mornings deliver clean offshore glass with fun, rippable waves, but afternoon onshore flows can spoil the fun. Stay flexible and watch the forecast.