Costa Azul - surf spot statistics

Best Surf Season (April - July)

As the Northern Hemisphere spring sets in, Costa Azul hits its prime. The Pacific high tightens its grip, ushering in consistent offshore breezes from the west to northwest—perfect for grooming the predominant south swell that travels thousands of miles from the Southern Ocean. Average wave heights climb to a fun 1.0-1.2m, while periods hover in the powerful 13-14 second range, yielding punchy, well-shaped waves that reel down the beach. This is the sweet spot where swell size, wind quality, and water temps align for peak surfability.

Fair Surf Season (March, August - October)

The shoulder months still offer plenty of waves, but conditions become more variable. March sees a rise in long-period swell as the South Pacific gears up, but winds can be a tick more inconsistent. Late summer into early fall (Aug-Oct) holds onto solid south swell energy (1.1-1.2m averages) but the trade wind influence begins to creep in, decreasing the percentage of offshore wind days. You'll still score clean sessions, especially in August, but expect more mixed conditions with occasional onshore slop.

Low Surf Season (November - February)

Winter brings a shift in the swell window. While the Southern Hemisphere is still active, the dominant storm tracks weaken, and the average swell height drops to 0.8m. More importantly, the region becomes susceptible to northerly swell from mid-latitude fronts, which doesn't wrap as efficiently into the east-southeast facing beach. Wind patterns are less reliable, with the percentage of ideal offshore wind falling to 69-73%. The result: smaller, less consistent surf with a higher chance of onshore wind ruining the session. However, when a solid south swell sneaks in under a high-pressure ridge, the few days of fun-sized, groomed waves make it worthwhile.

November: Sizing Down, Northern Swell Returns

November marks a clear downtrend: average height falls to 0.9m, and the period shortens to 12.5 seconds. The swell direction becomes more mixed. While S (55%) and SSW (31%) still dominate, there is a notable increase from the north quadrants: N (0.9%), NNE (1.4%), and NNW (0.4%) start to appear, along with more ENE and E. These northern swells are generally smaller and less frequent, but they add variety. The 1-1.5m range shrinks to 14% for S and 10% for SSW. Wind ideal conditions are 73% – still decent but lower. The dominant winds shift: N (8%), NNE (9%), NW (12%), WNW (12%). The westerly component is less intense. This is a month of lower confidence; you may get a clean, waist-high day or a blown-out mess. The best chance is a strong south swell that sneaks under a high-pressure ridge, giving you one of the last good sessions of the year.