Spot Kontiki - surf spot statistics

Best Surf Season (February - April)

As the austral summer transitions into autumn, the South Pacific high-pressure system begins to weaken, allowing for more frequent bursts of offshore winds from the NW quadrant. March stands out as the most promising month, with ideal wind conditions occurring 18% of the time – the highest of the year. During this window, long-period SSW to SW swell dominates, with wave heights averaging 1.6-1.7m and periods around 13-14s, delivering powerful, punchy waves that break cleanly along the beach. The combination of consistent swell and occasional offshore gaps makes this the premium period for scoring clean, rippable waves at Spot Kontiki.

Fair Surf Season (January, May)

January and May offer a mixed bag. January sees a slightly lower ideal wind percentage (6%) but still benefits from a solid swell regime – average height 1.4m and period 13s – with a high proportion of SSW swell. May brings a larger average swell (1.8m) and still decent period, but onshore winds from the S and SSW pick up, limiting quality sessions to those brief moments when the wind shifts to the NW. These months are worth watching: when the stars align, you can find some fun, shoulder-high waves with enough push to get into the wave early.

Low Surf Season (June - December)

The second half of the year is a challenging stretch for Spot Kontiki. From June through December, the South Pacific Anticyclone strengthens, locking in persistent onshore flow from the S through SW quarter. Ideal wind occurrence plummets to 3-5%, and even though swell remains plentiful – heights often in the 1.6-1.9m range with long periods – the constant onshore wind texture chops up the faces and robs the waves of their form. The best chances within this low season come in late September and early October, when the first spring transitions can briefly unsettle the trade winds, offering short-lived windows of cleaner conditions. But for the most part, expect bumpy, wind-affected surf that requires a determined approach and low expectations.

May: Big Swell, Onshore Struggle

May delivers the largest average swell height of the year at 1.8m, with a period of 13.6s. Swell direction is still heavy on SSW (84.4%) and S influences increase slightly (3.6%). The wave heights are concentrated in the 1.5-2m (47.0%) and 2-2.5m (19.9%) ranges – think pumping to heavy sets. The challenge is the wind: ideal offshore conditions exist only 10% of the time. Southerly wind dominates (S at 34.1%, SSW at 34.1%), with a notable increase in moderate speeds (SSW 10-20 kph at 13%). This persistent onshore flow tends to spoil the surface, making the powerful swell feel more like a washing machine than a conveyor belt. Patience is key; occasional weak trough passages can briefly shift wind to the east, offering short relief.