Shipwrecks - surf spot statistics

Best Surf Season (April - May)

Springtime at Shipwrecks offers the magic combination of solid, long-period groundswell and a high frequency of offshore winds. As the Pacific storm track shifts northward, the Southern Hemisphere kicks into high gear, sending consistent SSW and SW energy toward this SE-facing beach. Average wave heights climb to the 1.0-1.1m range with periods pushing 14 seconds, delivering powerful, rippable waves. Meanwhile, the trade winds weaken and high-pressure systems settle in, boosting offshore wind reliability to around 66%. This is prime time to score clean, lined-up surf at Shipwrecks.

Fair Surf Season (October - March)

Autumn and winter bring a different rhythm. The North Pacific becomes increasingly active, spinning up extratropical storms that send long-period swell toward the coast, though wave heights average a more modest 0.8-0.9m. Periods remain solid in the 12-13 second range, maintaining decent punch. Offshore winds are still reliable, clocking in around 60-64% of the time, with frequent NW to NNW breezes grooming the waves. The trade-off is size – you'll find fun, surfable waves more often than not, but the real groundswell peaks happen in spring.

Low Surf Season (June - September)

Summer is the crossroads of large swell and compromised wind. The Southern Hemisphere keeps producing, and average swell heights peak at 1.2m with periods around 13 seconds, often hitting the 1.5-2m range during pulses. However, the percentage of ideal offshore winds drops to 55-63% as the region falls under the influence of weaker pressure gradients and more frequent onshore flows from the SW and WSW quadrants. When the wind is right – a rare perfect alignment – you can score pumping walls, but more often you'll be dealing with bumpy, wind-affected conditions. For the patient surfer, there are still gems to be found.

August: Continued Big Swell, Lower Wind Reliability

August mirrors July with an average swell height of 1.2m and period easing slightly to 12.7s. Swell direction remains heavily dominated by S (73%) and SSW (20%), with a notable 6% from SSE that can add wrap-around energy. Offshore wind frequency dips further to 57%, with the most consistent wind directions shifting to SW and WSW at moderate speeds. The high pressure over the mainland is weaker, allowing afternoon sea breezes to kick up earlier. Early mornings are your best bet for clean conditions, especially when a synoptic trough brings a brief NW flow. Expect chest-high surf with occasional bigger sets, but plan to surf early before the wind texture ruins the rides.