
Surf Forecasts:
Chapadmalal surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 6AM (local time) - 4ft (1.2m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 9PM (local time) - 7.5ft (2.3m), 8s period, S swell with 737 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 6AM (local time) - 4ft (1.2m), 11s period with S swell.
Best Forecast Surf Conditions for Chapadmalal this week:
The surf forecast for Chapadmalal over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 6AM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.8m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Chapadmalal in the next 16 days are 2.3m 8s and forecast to arrive on Tuesday (Sep 15) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Thursday (Sep 17) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 13th Sep) | 4ft (1.2m) 11s |
| Best Surf | 6AM (Sun 13th Sep) | 4ft (1.2m) 11s |
| Most Powerful | 9PM (Tue 15th Sep) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Chapadmalal over the next 16 days.
The Lowdown
Yo, Rusty here, checkin' in from the coast. We've got a real mixed bag on our hands for the next sixteen days, so let's break it down.
The immediate outlook is a bit of a write-off, I gotta be honest. Starting today, Saturday the 12th, through to early next week, we're battling some serious onshore wind and messy conditions. The wave energy is there – moderate to strong with readings of 702 and 1035 – but it's all cross-on and choppy. The water is sitting at 51°F, which feels a touch warmer than normal for this time of year. Don't waste your time paddling out now; it's just frustrating out there.
Things start to settle on Sunday the 13th. Early morning we get a clean-up with a light offshore, swinging through the cross-off wind on a 4ft S swell. The energy drops to a moderate 346, but those clean conditions make it surfable. That afternoon the wind shifts, and the quality drops right off again. Monday the 14th has a similar story with a tiny 2ft swell and clean, but very weak conditions.
We hit a bit of a lull from there, with barely anything worth mentioning for a few days. Then, on Wednesday the 16th, the swell bumps up again. The morning shows 5ft from the SSE with a moderate energy of 425, but it's cross-shore. The afternoon looks better though – 5ft, cross-off wind, and a higher energy of 595. It's not perfect, but it's the first real chance for a surf.
But here's the real story, the one you're really waiting for. Later in the period, around Tuesday the 22nd through Thursday the 24th, the ocean just goes nuts. I'm talking massive, heavy groundswell. The energy readings are insane – 2291, 5260, and then a huge 13030 on Wednesday the 23rd. We're looking at 10ft to 16ft SSW and SSE swells, with a very long period of 14 to 16 seconds. The wind forecast is favorable, often offshore or cross-off. Now, this is a huge caveat: for a point break like Chapadmalal, these conditions are way, way too powerful. This is expert-only territory. It's absolutely bombing, but it's a monster that could eat you alive. A swell this size and with such a long period will be breaking hard and heavy, so only the most experienced chargers should even think about it. The sweet spot here will be for guys who know what they're doing, and even then, I'd be watching for a long time.
After that pulse fades, we do get a window of access on Friday the 25th morning. The swell drops to a much more manageable 5ft from the SE, still with that nice long period of 13 seconds, and offshore winds. The energy is back down to a moderate 722. This could offer some of the best waves of the whole run, with clean conditions and real shape on offer.
So my final call? The absolute standout is that Friday the 25th morning session. The conditions will be clean, the swell is a good size with proper period, and it won't be the washing machine that the earlier part of the week will be. For the brave, that huge swell from the 22nd to the 24th is a spectacle, but it's about as far from a beginner wave as you can get. The rest of the forecast has some small windows, but nothing else comes close.
Rusty, out.
Short Range ForecastMostly dry. Very mild (max 13°C on Mon afternoon, min 3°C on Sat night). Winds decreasing (fresh winds from the SSE on Sat morning, calm by Sun morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Thu afternoon, min 5°C on Tue night). Winds decreasing (strong winds from the SSW on Tue afternoon, light winds from the ESE by Tue night). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSE 8 | SSE 8 | S 11 | S 11 | S 10 | SSE 10 | SSE 9 | S 9 | E 8 | E 8 | S 6 | S 9 | S 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | ENE 7 | S 12 | S 12 | S 11 |
Wave Graph | |||||||||||||||||||||
672 | 584 | 403 | 281 | 200 | 128 | 66 | 42 | 20 | 12 | 171 | 487 | 412 | 388 | 202 | 108 | 86 | 32 | 11 | 11 | 9 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | cross-on | cross-off | cross-off | off | off | cross | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | on | cross-on |
High Tide | 8:08PM1.37m | 8:33AM1.15m | 8:57PM1.30m | 9:13AM1.20m | 9:45PM1.22m | 9:52AM1.23m | 10:32PM1.13m | 10:31AM1.23m | 11:18PM1.04m | 11:10AM1.21m | 00:07AM0.96m | 11:51AM1.17m | 00:59AM0.88m | ||||||||
Low Tide | 2:27PM0.27m | 3:17AM0.19m | 3:19PM0.21m | 3:54AM0.26m | 4:07PM0.18m | 4:29AM0.33m | 4:53PM0.17m | 5:01AM0.40m | 5:38PM0.18m | 5:33AM0.47m | 6:23PM0.22m | 6:04AM0.53m | 7:10PM0.27m | ||||||||
6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | |
— | 6:37 | — | — | 6:38 | — | — | 6:39 | — | — | 6:39 | — | — | 6:40 | — | — | 6:42 | — | — | 6:43 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 5 | 6 | 6 | 5 | 7 | 6 | 9 | 13 | 12 | 10 | 7 | 7 | 8 | 10 | 8 | 16 | 19 | 17 | 15 | 15 | 12 |
Feels °C | -4 | -1 | 0 | 2 | 1 | 0 | 2 | 6 | 6 | 4 | -3 | -1 | 3 | 4 | 2 | 10 | 14 | 14 | 13 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | E 9 | SSE 8 | S 11 | S 11 | S 10 | SSE 10 | SSE 9 | S 9 | E 8 | E 8 | E 8 | S 9 | S 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | ENE 7 | NE 6 | ENE 6 | ENE 6 |
6 | 403 | 403 | 281 | 200 | 128 | 66 | 42 | 20 | 12 | 12 | 487 | 412 | 388 | 202 | 108 | 86 | 29 | 9 | 3 | 3 | |
Swell 2 Height (m) Direction Period (s) | SSE 14 | SSE 14 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 8 | E 8 | S 9 | S 11 | — | E 8 | E 9 | SSW 9 | E 8 | SSW 8 | NE 5 | SSE 9 | ESE 7 | S 12 | S 11 |
21 | 36 | 56 | 53 | 40 | 36 | 45 | 29 | 6 | 9 | — | 5 | 6 | 202 | 1 | 13 | 9 | 32 | 5 | 11 | 9 | |
Swell 3 Height (m) Direction Period (s) | E 13 | SSE 11 | E 8 | ENE 8 | E 8 | E 9 | SW 6 | NE 4 | S 11 | S 14 | — | ENE 8 | ENE 9 | E 9 | E 8 | S 13 | SSW 8 | SE 8 | S 12 | SE 8 | S 4 |
3 | 12 | 5 | 12 | 4 | 14 | 1 | 1 | 3 | 4 | — | 13 | 7 | 2 | 1 | 3 | 6 | 15 | 11 | 2 | 1 | |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSE 8 | — | — | — | NNE 3 | N 3 | NW 3 | NNW 3 | SW 5 | S 6 | — | — | NE 3 | NE 5 | NNE 5 | NNW 4 | NNW 3 | — | SE 3 | E 3 |
672 | 584 | — | — | — | 5 | 7 | 3 | 6 | 32 | 171 | — | — | 3 | 35 | 42 | 10 | 2 | — | 2 | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 842 | 97 | 19 | 0 | 16 | 98 | 124 | 0 | 166 | 466 | 623 | 97 | 15 | 16 | 96 | 437 | 16 | 23 | 428 | 548 | 548 |
Best forecast wave conditions in Provincia de Buenos Aires | |||||||||||||||||||||
Best forecast wave conditions in Argentina | |||||||||||||||||||||
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Information about the Chapadmalal Surf forecast
The above surf forecast table for Chapadmalal provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Chapadmalal can be found by selecting the local surf guide option on the grey menu. Our Chapadmalal surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Chapadmalal) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Chapadmalal may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Provincia de Buenos Aires? If you are looking for accommodation near Chapadmalal, camping, hotels and holiday cottages in Provincia de Buenos Aires, consider staying in Mar del Plata which is 25 km (16 miles) away. Alternatively, find information about places to stay and car hire in Quequen which is 96 km (60 miles) away










