
Surf Forecasts:
Matanzas surf forecast from 5 Sep 2026:
- Best quality surf: Saturday 5 Sep, 11PM (local time) - 3.5ft (1.1m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 9AM (local time) - 4.5ft (1.4m), 16s period, SW swell with 980 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 11PM (local time) - 3.5ft (1.1m), 16s period with SW swell.
Best Forecast Surf Conditions for Matanzas this week:
The surf forecast for Matanzas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 11PM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 1.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Matanzas in the next 16 days are 1.4m 16s and forecast to arrive on Sunday (Sep 06) at 9AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 5th Sep) | 3.5ft (1.1m) 16s |
| Best Surf | 11PM (Sat 5th Sep) | 3.5ft (1.1m) 16s |
| Most Powerful | 9AM (Sun 6th Sep) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for Matanzas over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what's on the menu for Matanzas over the next couple of weeks.
The good news is this very consistent reef setup has some action coming, but it's gonna be a bit of a mixed bag. We're looking at a solid window of surfable waves, but you’ll have to pick your moments for the clean ones. The water is feeling about par for the course this time of year.
First real chance to get wet is this Saturday morning, the 5th. A long period SW groundswell is rolling in, but it's coming with a side of cross-shore wind. The waves are only about 3 ft, and the overall energy is moderate but messy (1015). The wind is making things a little jumbled, so it's not a classic.
Now listen, if you can hold out until Sunday morning, the 6th, that's the standout. The same SW groundswell holds, pushing 4.6 ft with that long 15-second period, and the wind goes glassy. We're talking clean lines, good shape for the experienced crew. The combined energy is moderate (1011), but that glassy surface is a massive plus. Sunday afternoon stays clean with a light offshore, but the period drops a bit.
The start of the next week is tricky. Monday through Tuesday sees the swell hanging around the 3.9 ft to 4.6 ft mark, but the onshore flow kicks in and chops things up, making for marginal conditions at best. Wednesday the 9th through Friday the 11th the wind turns even worse, with a strong cross-onshore making things lumpy and ugly. Not your best bet for a paddle.
We hit a rough patch from the 12th through the 18th, with no good surf to speak of. The waves drop right down, and the wind just won't let up. A blank run like this is a bummer.
The window opens back up in the second week, with a notable event on Monday the 14th. The swell builds to a solid 6.2 ft from the WSW, packing some serious energy (1231). It's a moderate groundswell with a 13-second period. The wind is only a gentle cross-shore, so while it's not perfectly clean, it’s workable and the best of the bunch for bigger waves. It's a bit much for beginners, but you experienced guys take note. The forecast is less certain this far out, but it has potential.
Then on Saturday the 19th, we get another pulse. Waves hit the 6.6 ft mark from the WSW, again with decent energy (1221). The wind is a light cross-on, which isn't ideal, but at that size you could find a bank that works. This one is definitely for the expert crowd only at that size.
So, to wrap it up: Sunday the 6th is your cleanest, most user-friendly window for a good session. Monday the 14th is the promising long-range call for more size and power. The rest of the time, you're fighting the wind or waiting for the next pulse. Surf hard.
Short Range ForecastMostly dry. Very mild (max 14°C on Sat afternoon, min 7°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Thu afternoon, min 8°C on Mon night). Winds increasing (light winds from the SE on Tue night, fresh winds from the SSW by Thu afternoon). | ||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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) | SW 8 | SW 18 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | WSW 12 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | SW 8 |
Wave Graph | |||||||||||||||||||
392 | 491 | 607 | 748 | 784 | 742 | 776 | 787 | 787 | 560 | 494 | 358 | 260 | 419 | 384 | 295 | 362 | 304 | 318 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-off | glassy | on | glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | cross | cross-on | cross | cross-on | cross-on | cross |
High Tide | 4:25AM1.20m | 5:28PM0.72m | 5:54AM1.25m | 7:04PM0.77m | 7:09AM1.34m | 8:05PM0.87m | 8:07AM1.43m | 8:51PM0.98m | 8:55AM1.50m | 9:32PM1.09m | 9:39AM1.52m | 10:09PM1.19m | |||||||
Low Tide | 9:12PM0.40m | 11:53AM0.36m | 10:48PM0.43m | 1:14PM0.27m | 1:20AM0.38m | 2:10PM0.16m | 1:30AM0.28m | 2:54PM0.07m | 2:26AM0.18m | 3:33PM0.00m | 3:14AM0.10m | 4:08PM-0.03m | 4:00AM0.05m | ||||||
— | 7:00 | — | — | 7:58 | — | — | 7:56 | — | — | 7:56 | — | — | 7:54 | — | — | 7:52 | — | — | |
6:30 | — | 6:31 | — | — | 7:32 | — | — | 7:32 | — | — | 7:34 | — | — | 7:35 | — | — | 7:35 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 14 | 12 | 13 | 14 | 11 | 11 | 12 | 10 | 11 | 13 | 11 | 13 | 14 | 12 | 14 | 15 | 12 |
Feels °C | 7 | 8 | 9 | 8 | 11 | 12 | 10 | 9 | 9 | 7 | 8 | 9 | 7 | 11 | 11 | 9 | 10 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 18 | SW 8 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 6 | WSW 14 | WSW 14 | SW 6 | WSW 13 | WSW 13 | SW 8 |
392 | 277 | 607 | 219 | 784 | 742 | 776 | 787 | 787 | 560 | 494 | 358 | 91 | 419 | 384 | 85 | 362 | 304 | 318 | |
Swell 2 Height (m) Direction Period (s) | WSW 13 | WSW 12 | WSW 12 | SW 16 | SW 10 | SW 8 | — | — | — | WSW 19 | WSW 18 | SW 17 | WSW 12 | SW 7 | NW 13 | WSW 13 | NW 12 | NW 13 | WSW 12 |
330 | 247 | 184 | 748 | 227 | 77 | — | — | — | 72 | 121 | 75 | 260 | 86 | 6 | 295 | 6 | 6 | 255 | |
Swell 3 Height (m) Direction Period (s) | SW 21 | SW 18 | — | WSW 12 | — | — | — | — | — | — | — | W 14 | WSW 16 | NW 13 | — | NW 12 | — | — | NW 13 |
220 | 491 | — | 177 | — | — | — | — | — | — | — | 4 | 146 | 7 | — | 6 | — | — | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | SW 9 | — | — | — | — | — | — | — | — | SW 6 | — | — | SW 6 | — | SW 6 | SW 7 | — |
— | — | 336 | — | — | — | — | — | — | — | — | 56 | — | — | 93 | — | 103 | 226 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 43 | 48 | 229 | 0 | 0 | 364 | 0 | 16 | 364 | 0 | 48 | 65 | 0 | 48 | 364 | 16 | 291 | 364 | 48 |
Best forecast wave conditions in Santiago | |||||||||||||||||||
Best forecast wave conditions in Chile | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Matanzas Surf forecast
The above surf forecast table for Matanzas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Matanzas can be found by selecting the local surf guide option on the grey menu. Our Matanzas 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 (Matanzas) 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 Matanzas 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.
Matanzas is 47 km (29 miles) from the city of San Antonio. If you plan a holiday in Santiago, look for hotels and other accommodation in San Antonio. San Antonio has rooms for a wide range of budgets as well as car hire and transport links.










