Pico Alto - surf spot statistics

Pico Alto, Peru, is a world-class big-wave spot with consistent conditions year-round, but the best months for surfers—especially those seeking powerful, clean swells—fall between April and September. During this period, the mean swell size peaks at around 2.0m, with virtually no days lacking swell (99% ground swell dominance in most months). The trade-off is the wind conditions, which are overwhelmingly onshore or unfavorable (98-99% bad wind days), making clean surf sessions rare. However, when the winds do align, the waves are exceptional. The shoulder months (March, October) still offer solid swell size (1.6m-1.8m) with slightly better odds for good wind days (around 8% in March, 1-2% in October). The smallest swells occur in January and December (1.4m mean), but even then, the swell consistency remains high (96% ground swell). For surfers prioritizing size and consistency over wind conditions, June to August is prime time, though patience is required for those rare clean wind days. Conversely, if lighter winds are a priority, February and March offer marginally better chances (11% and 8% good wind days, respectively). Overall, Pico Alto delivers heavy, powerful waves year-round, with the biggest and most consistent swells in the austral winter—ideal for experienced surfers comfortable with challenging conditions.

December at Pico Alto offers consistent surf with an average swell height of 1.4m and a solid period of 13.4s, producing powerful, well-spaced waves. The swell direction is predominantly SSW (30.25% in the 1-1.5m range and 20.31% in 1.5-2m) and SW (26.84% in 1-1.5m), ensuring clean, long-period groundswells that line up perfectly for this break. Larger sets (2-2.5m) occur around 3.25% of the time from the SSW, delivering heavier, more challenging waves for experienced surfers. Wind conditions are less ideal, with only 2% of days offering optimal offshore winds. The prevailing winds are predominantly S to SSE (34.16% at 10-20kph and 12.56% at 10-20kph), often creating cross-shore or slightly onshore conditions that can texture the surface. Stronger winds (20-30kph) from the SE and S occur frequently (8.74% and 8.82%, respectively), further reducing surf quality. Overall, December provides powerful, consistent waves with a long period, but wind conditions are unreliable, making early mornings or occasional offshore windows the best time to score clean conditions. This is a spot for advanced surfers due to the size, power, and occasional bump from crosswinds.