Low Island - surf spot statistics

Best Surf Season (November - March)

The heart of winter delivers the most consistent and powerful swells to Low Island. Average wave heights steadily climb above 2.4m from November through March, peaking at a massive 3.0m in December. These swells, generated by intense extratropical storms ripping across the North Pacific, arrive with long periods (11-12s), translating to serious, heavy waves that demand respect. The wind regime plays along too, with offshore flow (NNE to E) occurring 28-36% of the time, often creating groomed, lined-up walls on the best days. This is the prime window for surfers seeking size and power.

Fair Surf Season (April - May & October)

During the shoulder months, the ocean transitions. April still sees a generous 37% offshore wind frequency and average heights around 2.2m, making it a solid but less consistent option compared to winter. By May, swell size drops to 1.7m and periods shorten, though occasional SSW-SW groundswells can still produce clean, rippable surf during windows of ideal wind. October marks the beginning of the autumn ramp-up, with averages climbing back to 2.5m. However, the prevalence of onshore S-SW winds (ideal on only 26% of days) means you'll need to be patient for clean conditions.

Low Surf Season (June - September)

Summer settles in with a pronounced lull in wave energy. Average heights hover between 1.3-1.9m, and periods dip into the 9-10s range, resulting in smaller, weaker surf that is often blown out by persistent onshore trade winds. Offshore wind percentages bottom out at 23-26%, and the dominant swell directions (SSW-SW) are aligned with the onshore flow, making quality sessions rare. While long-period south swells from distant southern hemisphere storms can occasionally sneak in, they are infrequent and often come with unfavourable wind, keeping this season primarily for loggers and beginners during the rare clean moments.

March: Late-Winter Gold with Transitional Energy

March maintains the winter momentum as average swell holds at 2.4m with a solid 11.3s period. Swell direction continues to be dominated by the optimal SW (14.7%) and WSW (17.4%) windows, fuelled by the tail end of the North Pacific storm season. The real standout is the wind: offshore flow occurs 36% of the month, the highest peak. This combines with a slight easing in swell size to create more manageable yet incredibly clean surf. The sun climbs higher, making dawn patrols more pleasant. This is a prime month for solid, fun-sized to pumping waves with a light offshores – a sweet spot for experienced intermediates and pros alike.