La Rinconada seasonal overview
Best Surf Season (October - March)
As the Southern Hemisphere summer sets in, the South Pacific syncs up with La Rinconada's unique bathymetry. During these months, a near-constant stream of long-period groundswell from the SW and WSW arcs – averaging 2.0m at 12.8s – pushes into the coast. The key to quality lies in the wind: a robust high-pressure cell over the southern Pacific drives offshore breezes from S, SSW, and SW over half of the time. This combination of solid, powerful swell and clean, offshore winds produces some of the most consistent, punchy waves of the year. While the swell direction isn't dead-on northwest, the long period allows it to refract into the NW-facing beach, delivering rippable, hollow lines when the wind cooperates.
Fair Surf Season (April - May & September)
During the autumn transition, the South Pacific storm track begins to shift, and the dominant high-pressure system weakens. Average swell heights hold steady around 2.0m with periods still in the 12.9-13.1s range, but the wind patterns become more variable. Onshore northerly flow starts to creep in more frequently, especially during May (ideal wind drops to 52%). Yet, windows of clean, offshore conditions still appear, particularly when a transient high sets up to the south. These are the months for the patient surfer – the potential for epic, glassy sessions exists, but you'll need to watch the forecast closely.
Low Surf Season (June - August)
Winter grips the Chilean coast, and La Rinconada feels the brunt of it. The Southern Ocean continues to pump out consistent SW-WSW swell (average 2.2m at 12.7s), but the wind regime flips unfavorably. A persistent low-pressure system off the coast generates frequent onshore winds from N, NNW, and NW, destroying wave quality over 50% of the time. While the swell is powerful and the period is long, the combination of cross/onshore winds and the already off-angle swell direction makes for mostly choppy, lumpy conditions. Only the most dedicated locals will find the rare southerly wind day that turns a winter swell into a gem.
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Conditions at La Rinconada in May
May: Autumn Bite
May brings a noticeable shift. Average swell height rises to 2.1m with a period of 12.9s. The swell spectrum broadens: WSW (33%) and SW (29%) still lead, but W swell jumps to 11% and WNW to 2.6%. The big change is in the wind: ideal conditions drop to 52%. Northerly winds become much more common (N: 13%, NNE: 11%), creating onshore chop that degrades wave quality. However, the longer-period SW swells can still wrap in cleanly when the wind switches to S or SSE. Expect more lumpy days with occasional gems – a month for the opportunistic surfer who checks the forecast frequently.
Average Spot conditions at La Rinconada in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at La Rinconada during May. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at La Rinconada for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at La Rinconada for May. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at La Rinconada.
