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.

December: Winter Slump, But Hope Remains

December bottoms out with an average swell height of 0.8m and a period of 11.9 seconds – the lowest of the year. Swell direction is dominated by S (41%) and SSW (29%), but northern components are more prominent: N (6%), NNE (4%), NNW (3%). The 1-1.5m range is thin (3-4% of the total). Wind ideal conditions hit a yearly low of 69%. The wind rose shows a strong northerly pattern: N (14%), NNE (12%), NNW (9%), along with WNW (9%) and NW (9%). These northerly winds are often associated with cold fronts that push through, bringing winter chill and onshore flow. However, when a high pressure settles over the southwestern US, it can create a clean NW offshore flow. On such days, the south swell window can still produce fun waist-high waves. It's a month for the patient surfer – quality over quantity. Keep an eye on the Southern Ocean for an early winter swell pulse.