Surfing Arenillas Negras: The Complete Guide

Arenillas Negras is a reef break located in Arica, Chile, offering a left-hander along South America's vast coastline. Arenillas Negras ("Black Sands") is a reef break on a distinctive dark volcanic sand beach in Arica. Rated as advanced difficulty with uncrowded conditions, this reef break is a worthy destination for surfers looking beyond the usual suspects.

Best Conditions

Swell Direction: The ideal swell direction is SW (225°), with workable conditions from SSW to WSW (200°–250°). Swells outside this window will either miss the break or produce disorganized waves.

Swell Size: Arenillas Negras needs a minimum of 1.2m / 4ft to start working and handles swells up to 2.4m / 8ft before conditions deteriorate.

Swell Period: Look for a swell period of at least 12 seconds, with 16 seconds being the sweet spot. Longer periods deliver more organized, powerful waves with better shape.

Wind: True offshore here blows from the NE (45°). The full offshore range spans NNE to ENE (20°–70°). Glassy conditions under 4km/h from any direction also produce excellent surf. Plan for early morning dawn patrol sessions.

Tide: This spot works best at mid tide. Optimal tide range is 0.4m–1.4m.

When to Go

Primary Season: The prime window at Arenillas Negras runs April, May, June, July, August, September (Apr–Sep). This is when swell consistency and direction align most reliably with the break.

Secondary Season: A secondary window opens March, October (Mar–Oct). While not as consistent, patient surfers can still score quality sessions during this period.

Season Notes: Quality reef break.

Water Temperature: Expect water temperatures around 18°C / 64°F. Bring a 3/2mm wetsuit — 4/3mm in winter months.

Getting There

The nearest airport is ARI, just a quick 12-minute drive from the break.

Access: Near Arica slab zone.

Hazards & Tips

Known Hazards:

🪸 Sharp reef — Shallow reef, booties recommended
🪨 Rocks — Rocky entry/exit or in lineup

Rocky reef. Dark volcanic sand.

Safety Tips:

Wear reef booties to protect your feet from sharp coral and rock

Skill Level: This spot is rated advanced (6/10). Crowd Level: Typically uncrowded (2/10).

Check the Live Forecast

Planning a session at Arenillas Negras? Check the live forecast on Strike Mission to see today's conditions and the 10-day outlook. Our Strike Score algorithm rates this spot from 0 to 100 every day, factoring in swell direction, size, period, wind, and tide — so you know exactly when to paddle out.

Don't leave your next surf trip to chance. Let the data tell you when Arenillas Negras is firing.

*Conditions data sourced from Strike Mission's verified spot database.*