
Surf Forecasts:
Matanzas surf forecast from 3 Sep 2026:
- Best quality surf: Saturday 5 Sep, 8AM (local time) - 2.5ft (0.8m), 19s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 11PM (local time) - 7ft (2.2m), 14s period, WSW swell with 1,748 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 8AM (local time) - 2.5ft (0.8m), 19s 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 8AM. The primary swell is predicted to be 0.8m and 19s period with a secondary swell of 1.5m and 9s. Another secondary swell of 0.9m and 12s is also forecast. 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 2.2m 14s and forecast to arrive on Thursday (Sep 03) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 5th Sep) | 2.5ft (0.8m) 19s |
| Best Surf | 8AM (Sat 5th Sep) | 2.5ft (0.8m) 19s |
| Most Powerful | 11PM (Thu 3rd Sep) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Matanzas over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming down the line for the next couple of weeks.
Honestly, looking at the whole 16-day window, it’s a pretty tough stretch for Matanzas. There are no proper standouts, and the quality is really compromised for the most part. The first few days are particularly grim, with a lot of lumpy, cross-shore wind ruining the shape. The combined wave energy initially is moderate, around 829, but that’s about the only positive – the winds are just too strong and from the wrong angle.
The best window of opportunity looks to be around Saturday the 5th of September into Sunday the 6th of September. Saturday morning shows a long-period groundswell from the SW at 3ft with a period of 18 seconds. The combined energy is a solid 1035, but with that very long period, the sets will be well-spaced. The wind is a light cross from the SSW at 9 mph, which is manageable, but the swell is small. This spot is a reef, so that long period will wrap in nicely. Sunday morning the 6th is probably your best bet. The swell bumps up to 5ft from the SW, still a long 15-second period, and the wind drops right out to a near-glass 3 mph from the NNW. That’s a light cross-shore, which will keep things clean. The combined energy is sitting at 1028. It’s not huge, but given the rest of the outlook, that Sunday morning session is the clear winner – clean lines on the reef.
After that, the wind turns more cross-onshore or onshore for the rest of the first week and into the second, and it gets messy. There’s a pulse of slightly bigger swell around the 12th and 13th of September, with waves pushing 6ft to 6ft from the W, but the wind is a problem – fresh and choppy, or cross and lumpy. That’s more of a messy, expert-only zone if you’re desperate, but nothing I’d recommend for a good time. The energy gets up to 1858 on the 12th, so there’s power, but the surface will be ugly.
The long-range forecast around Friday the 18th of September shows a bit of pulse again with energy around 1315 and 4ft swell, but it’s locked into cross-onshore winds. It’s a long way out, and with how this forecast looks, don’t hold your breath.
So, the bottom line: keep your eyes on Sunday the 6th of September morning for the cleanest, most surfable waves. Everything else is a battle against the wind. If you’re a beginner, the waves are small enough most days, but the chop will make it tricky.
Stay patient, mates.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Fri afternoon, min 7°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Sun afternoon, min 9°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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) | WSW 16 | WSW 14 | WSW 15 | WSW 13 | WSW 13 | WSW 13 | SW 8 | SW 18 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 |
Wave Graph | |||||||||||||||||||
302 | 452 | 1275 | 1697 | 577 | 476 | 449 | 491 | 607 | 748 | 881 | 1079 | 776 | 799 | 721 | 560 | 388 | 316 | 216 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-off | cross | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 2:00AM1.23m | 2:18PM0.87m | 3:03AM1.21m | 3:36PM0.76m | 4:25AM1.20m | 5:28PM0.72m | 5:54AM1.25m | 7:04PM0.77m | 7:09AM1.34m | 8:05PM0.87m | 8:07AM1.43m | 8:51PM0.98m | |||||||
Low Tide | 8:36AM0.35m | 8:06PM0.33m | 10:07AM0.39m | 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 | |||||||
— | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 7:58 | — | — | 7:56 | — | — | 7:56 | — | — | |
6:30 | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 7:32 | — | — | 7:32 | — | — | 7:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 14 | 12 | 12 | 15 | 12 | 12 | 14 | 12 | 13 | 14 | 12 | 12 | 13 | 10 | 13 | 14 | 11 |
Feels °C | 10 | 8 | 7 | 7 | 7 | 9 | 7 | 8 | 9 | 8 | 11 | 11 | 11 | 10 | 9 | 6 | 9 | 9 | 6 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 14 | WSW 15 | WSW 13 | SW 8 | WSW 13 | SW 8 | SW 9 | SW 18 | SW 9 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 6 |
218 | 452 | 1275 | 1697 | 274 | 476 | 449 | 297 | 607 | 246 | 881 | 1079 | 776 | 799 | 721 | 560 | 388 | 316 | 88 | |
Swell 2 Height (m) Direction Period (s) | WSW 16 | WSW 9 | — | — | WSW 13 | SW 23 | WSW 13 | WSW 12 | SW 12 | SW 16 | SW 8 | — | — | — | — | WSW 5 | SW 5 | WSW 17 | SW 12 |
302 | 108 | — | — | 577 | 21 | 330 | 247 | 149 | 748 | 129 | — | — | — | — | 15 | 23 | 108 | 216 | |
Swell 3 Height (m) Direction Period (s) | WSW 13 | WSW 16 | — | — | — | — | SW 21 | SW 18 | — | WSW 12 | SW 22 | — | — | — | — | WSW 19 | WSW 18 | W 14 | WSW 16 |
69 | 234 | — | — | — | — | 220 | 491 | — | 177 | 18 | — | — | — | — | 72 | 120 | 4 | 146 | |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 5 | SW 5 | — | — | SW 8 | — | — | SW 10 | — | — | — | — | — | SW 4 | — | — | SW 5 | — |
35 | 35 | 65 | — | — | 373 | — | — | 437 | — | — | — | — | — | 13 | — | — | 62 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 120 | 121 | 364 | 43 | 121 | 390 | 43 | 48 | 229 | 0 | 229 | 55 | 0 | 65 | 48 | 43 | 48 | 108 | 43 |
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.










