Biologia (Mar del Plata) Surf Forecast and Surf Report

Alright, Rusty here. Let’s have a look at the charts for the next couple of weeks.

Honestly, it’s a pretty flat and quiet stretch. We’ve got a long run of small, weak swell and mostly messy conditions for the first week and a half. The good news is there’s a little window of opportunity right at the end, but patience is the name of the game.

Monday the 20th through to the middle of the following week is a real struggle. The swell is tiny, mostly around 1ft to 2ft, with a short period around 7 to 9 seconds, meaning weak, crumbly waves. The combined energy is low, often in the 20s, 30s, and 40s range, with a couple of days barely hitting 60. Winds are a mix of cross, cross-on, and onshore, so the surface is generally choppy or bumpy. There are a few cleaner moments, like Thursday the 23rd and Thursday the 30th, with light cross-off winds, but the swell is still just too small to do anything with. It’s all poor surf conditions.

That changes a little on Friday the 31st of July. The swell bumps up to 4ft to 5ft from the ENE, with a moderate period around 7-8 seconds, and the combined energy jumps to 134 and then 371. That’s moderate to strong energy, but the wind is a fresh cross-onshore from the NE, making it lumpy and choppy. It’s a bit of a raw day, not great for a clean ride, but there’s more push in the water. That same energy hangs around into Saturday the 1st of August, with 3ft swell from the east, still moderate energy in the 130s and 140s, but the wind swings to a cross-shore SSW breeze, which cleans things up a bit. It’s still not perfect, but it’s the most interesting part of the whole run.

The standout here is actually a couple of days later, on Sunday the 2nd of August and Tuesday the 4th of August. On Sunday the 2nd, the swell drops to 2ft, but the wind goes light WSW cross-off, and the waves are clean. The energy is only 72, so it’s small, but it’s your best chance for a longboard or a fun little fish. Then on Tuesday the 4th, the swell picks up to 4ft from the SSE, with a very short period of 5 seconds (that is a short, weak windswell), but again the wind is a clean cross-off from the WSW. The combined energy is 82, so it’s not powerful, but it’s clean and rideable. For a beginner spot like Biologia (Mar del Plata), that’s about as good as it gets in this window.

Wind is the main positive for these few days. Light, clean, cross-off winds make for glassy conditions. But the swell is tiny, and the period is short, so don’t expect any power. The water is a touch warmer than normal for this time of year, which is a nice bonus.

There’s a big gap of poor surf from the start until the 28th of July, then a few better days, then another quiet spell. Ultimately, there’s no epic swell in the 16-day window. The best on offer is the 2nd and 4th of August at Biologia, where the clean conditions will make the small waves at least worth a paddle.

Rusty.

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