Santa Rosa - surf spot statistics

Best Surf Season (December - April)

The austral summer brings the most consistent and powerful swell to Santa Rosa. As the South Pacific storm track shifts south, a steady stream of groundswells arrives from the SSW and SW quadrants, often with periods in the 10-14s range and heights averaging 1.5-1.7m. The average swell direction aligns perfectly with the beach's WSW exposure, delivering punchy, well-organized lines. However, the wind remains a challenge: the dominant S/SSW flow creates onshore or cross-shore conditions the vast majority of the time. Still, when the wind briefly backs off or shifts to a light easterly breeze — a rare occurrence (<5% of the time) — the waves clean up into rippable, fun-sized surf. This window, though narrow, offers the best chance for glassy sessions with moderate offshore texture.

Fair Surf Season (May & November)

May and November represent transitional months. Swell heights remain respectable (1.6-1.8m on average) and periods hold in the 13s range, but the wind patterns begin to shift. In May, the S/SSW wind becomes stronger and more persistent, pushing the 'ideal wind' percentage to nearly zero. November sees a slight increase in lighter wind events but still no substantial offshore flow. These months can deliver solid, powerful surf — especially around the new and full moons when the swell energy peaks — but you'll be battling textured, sometimes choppy conditions. Only the most dedicated are rewarded with clean, rideable waves when the wind aligns just right.

Low Surf Season (June - October)

The austral winter is the low season for surf quality at Santa Rosa. From June through October, the South Pacific storm belt is at its strongest, producing a consistent run of long-period SSW and S swells that average 1.8-1.9m with periods around 13s. This is the peak in raw swell energy — many days offer pumping, heavy wave heights in the 1.5-2.5m range. But the catch is the wind: a persistent, often strong S/SSW flow slams directly into the beach, creating onshore, choppy, messy conditions that blow out the wave faces. The 'ideal wind' percentage drops to a flat 0% in most months. While there are occasional lulls or slight directional shifts, the default state is blown-out, textured surf. Only the most wave-starved or well-protected breaks will offer anything clean. This is the time to be chasing sheltered points or taking a breather.

October: Swells Begin to Mellow, Wind Persists

October sees a slight drop in average swell height to 1.8m with a period of 13.2s, signaling the transition out of winter. The swell directions are still primarily SSW (86.6%) and S (7.4%), with a good chunk (46%) in the 1.5-2m range and 18.9% in 2-2.5m. The surf remains powerful, though slightly less consistent. Wind conditions begin to ease: S and SSW winds still dominate (44% and 48.1% respectively), but the speed is mostly in the 10-20kph range with fewer stronger pulses. However, the ideal offshore wind fraction remains 0%. This month offers a glimpse of the coming summer patterns, but the surface is still mostly blown out. Patience is required.