Arpoador Surf Forecast and Surf Report

Alright, let’s get into it. The next couple of weeks are looking pretty quiet overall, with only a few windows of clean, rideable surf. The first real chance to get wet comes on Wednesday, July 29th, and there’s a stretch of small but workable days, then a bit of a lull, before a bigger, more powerful swell shows up around Tuesday the 11th of August. That late-period groundswell is the standout, but it comes with some serious caveats.

Overall Pattern:
For the next several days, we’ve got small, knee-to-waist high swell pushing in from the south. The combined wave energy stays mostly in the low to moderate range (89 to 188), so it’s not going to be powerful, but there are a few clean windows where the wind plays nice. After a quiet patch early in the second week, a much stronger, longer-period S/SSE swell arrives around the 11th and 12th of August. That one is the big story, but it’s a long way out, so keep an eye on it.

The Best Bet:

The standout window for a proper surf is actually the small stuff, if you time it right. Thursday morning, July 30th at Arpoador is your best early call. We’ve got a 2ft south swell with a solid 11-second period, and the wind is glassy – total calm. That means absolutely clean, smooth waves, perfect for a longboard or a funboard. The energy is light (89), but with that glassy surface, you’ll be getting the best quality waves of the week. Water temp is about average for this time of year, so it’s not unusually warm or cold. Just keep in mind this spot does pull crowds, and with conditions this clean, it’ll be busy.

Day-by-Day Breakdown:

Wednesday, July 29th: Small south swell at 2ft, but morning winds are a tricky cross-offshore, making for ordinary but surfable waves. Afternoon turns ugly with a cross-onshore breeze. Not worth rushing out.

Thursday, July 30th: As mentioned, the morning is glassy with clean 2ft waves. Afternoon gets a direct onshore wind and chops it up.

Friday, July 31st: Morning looks okay with a light cross-off and 2ft swell, but the afternoon bumps up to 3ft from the SSE (188 energy) but with a strong 12 mph cross-off that ruins the shape.

Saturday & Sunday, August 1st & 2nd: Morning sessions are the go. Saturday morning has a light offshore breeze with a 2ft S swell (175 energy) – clean. Sunday is smaller, just 2ft, but again clean with a light offshore. Afternoons are messy both days.

Monday, August 3rd to Wednesday, August 5th: More of the same – small, clean morning windows with light offshore winds. Swells bounce between 2ft and 3ft, with energy ranging from 94 to 191. Not powerful, but clean.

Thursday, August 6th to Sunday, August 9th: The winds shift and the quality drops. Mostly poor conditions with cross-onshore or onshore winds, and the swell remains tiny. There's a brief glassy morning on Friday the 7th (2ft S swell, 105 energy) and again Saturday morning the 8th (2ft, 59 energy), but these are very marginal.

Big Gap: After Sunday the 9th, there are a couple of days with absolutely nothing worth mentioning. Monday the 10th is flat and poor.

The Late Standout (Long Range):

Tuesday, August 11th – morning session is the one to circle. This is the biggest swell of the forecast. A 5ft south swell with an extremely long 16-second period, and the combined energy jumps massively to 1132 (strong). The wind is light and onshore, though, which is a shame. That long-period swell has serious power, but at a beach break like Arpoador, it might be a bit too straight and dumpy – a point or reef break would handle it better. Still, with a 16-second period, the sets will be well-spaced and easy to paddle out between. The afternoon sees it bump to 6ft (1402 energy), still very long period at 15 seconds, but with a cross-onshore breeze adding chop. This swell is for experienced surfers only; 6ft with that period is a lot of power.

Wednesday, August 12th: The swell starts to ease (5ft, 699 energy), but a strong 16 mph cross-onshore wind makes a mess of it. Not recommended.

Thursday, August 13th: The swell drops further (4ft, 479 energy), still with cross-onshore wind and light rain. The quality is poor.

So for the best waves, set your alarm for Thursday the 30th of July morning for clean small glass, or keep a very close eye on Tuesday the 11th of August morning for a powerful but tricky long-period south swell. Everything else is just small and clean or blown out.

Rusty.

Read more