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.

January: Midwinter Powerhouse

January is deep in the heart of the North Pacific storm track. Average swell heights hit 2.9m with a strong 11.8s period, meaning powerful, groundswell-driven surf dominates. The swell window sees a clear bias toward the SW-WSW quadrant (over 20% of all swell energy), which is exactly the optimal direction for Low Island. This produces consistently good to excellent waves when the wind plays nice. Offshore wind from the N to E quadrants blows 31% of the time, often in the wake of cold fronts, providing glassy mornings before sea breezes kick in. The prevailing synoptic pattern features high pressure building behind lows, delivering clean conditions for a good chunk of the month. Expect a mix of pumping, heavy waves and occasional XXL days when period pushes past 15s.