Surf Forecasts:
Matanzas surf forecast from 22 Aug 2026:
- Best quality surf: Thursday 27 Aug, 11AM (local time) - 13ft (4.0m), 15s period, WSW swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 11AM (local time) - 13ft (4.0m), 15s period, WSW swell with 6,675 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 11PM (local time) - 3.5ft (1.1m), 7s 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 (Aug 22) at 11PM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.7m and 10s. 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 4.0m 15s and forecast to arrive on Thursday (Aug 27) at 11AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Aug 29) at 8AM.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 22nd Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 11AM (Thu 27th Aug) | 13ft (4.0m) 15s |
| Most Powerful | 11AM (Thu 27th Aug) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Matanzas over the next 16 days.
The Lowdown
G’day, Rusty here, your local surf reporter. Let’s have a look at what’s comin’ down the line for the next couple of weeks.
Right now, it’s a bit of a slow start. The first few days are a bit of a write-off, to be honest. We’ve got a bit of a lull from Saturday the 22nd right through to Monday the 24th, with pretty ordinary conditions and small, weak swell. Don’t bother paddlin’ out just yet.
The first real flicker of life shows up on Wednesday the 26th of August. Matanzas (a reef break) is starting to wake up. Wednesday morning is lookin’ clean with a light cross-offshore breeze from the NE, and the swell is a solid 7 ft from the WSW, with a moderate period of 12 seconds. The combined energy is moderate at 1231, so there’s some push behind it. The water temp is sitin’ at 56°, which is about average for this time of year, so nothin’ wild there. This is a solid option for experienced surfers – the size is gettin’ up there, so beginners might want to sit this one out.
Now, the standout. Thursday the 27th of August morning is the absolute gem of this forecast. Matanzas is gonna be pumpin’. We’re lookin’ at a 13 ft swell from the WSW, with a very long period of 15 seconds – that’s proper groundswell energy. The wind is glassy, dead calm from the north. The combined energy is a massive 6675, which is strong to very strong. This is big, clean, powerful reef surf for expert chargers only. This is the one to circle on the calendar. That afternoon, it drops a bit and the wind swings onshore, but that morning window is pure gold.
Friday the 28th of August is still solid, with 8 ft swell from the WSW and glassy conditions again in the morning. The energy is still strong at 2354. Another excellent morning for experienced surfers.
Saturday the 29th of August has a clean morning with a 7 ft swell from the W and a cross-offshore breeze. The energy is still strong at 1396. Good, but not quite the peak of Thursday.
Then we hit a bit of a rough patch. Sunday the 30th of August and Monday the 31st blow up with strong onshore winds and messy conditions. The swell is there, but the quality is gone. That stretch is a write-off for paddle surfing.
The first week of September brings a bit of a mixed bag. The mornings of the 5th and 6th of September show some promise. Saturday morning, the 5th of September, is another solid one – glassy conditions with a 7 ft swell from the WSW, period of 12 seconds, and excellent conditions for experienced surfers. The energy is strong at 1322. The wind is glassy, so it’ll be clean. The morning of the 6th is a bit smaller, but still surfable.
So, to wrap it up: the first few days are a dud. The absolute best session on offer is Thursday morning the 27th of August – that’s the big one. The back half of the first week and the start of September have a few more good mornings, but nothing beats that Thursday. Keep an eye on the forecast, especially for that date, as it’s a bit further out and things can shift, but the signs are real good.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sat afternoon, min 11°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Wed afternoon. Very mild (max 14°C on Tue morning, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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) | WSW 11 | WSW 10 | SW 7 | SW 7 | SW 7 | SW 13 | SW 12 | WSW 11 | WSW 10 | WSW 15 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 13 | WSW 15 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | W 13 |
Wave Graph | |||||||||||||||||||||
375 | 136 | 119 | 86 | 73 | 61 | 77 | 145 | 116 | 167 | 258 | 547 | 1231 | 1293 | 2339 | 6675 | 5996 | 3578 | 2354 | 1915 | 1559 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | off | cross | cross | glassy | glassy | cross | glassy | cross-on | cross | glassy | cross-off | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross-on | cross-off |
High Tide | 7:30PM0.72m | 7:25AM1.15m | 8:21PM0.77m | 8:14AM1.23m | 8:57PM0.83m | 8:52AM1.31m | 9:27PM0.89m | 9:26AM1.37m | 9:56PM0.96m | 9:58AM1.41m | 10:25PM1.03m | 10:29AM1.42m | 10:54PM1.10m | ||||||||
Low Tide | 1:42PM0.40m | 00:32AM0.49m | 2:31PM0.33m | 1:31AM0.43m | 3:07PM0.25m | 2:17AM0.35m | 3:37PM0.19m | 2:55AM0.27m | 4:05PM0.13m | 3:31AM0.21m | 4:32PM0.09m | 4:05AM0.17m | 4:58PM0.07m | 4:41AM0.14m | |||||||
7:18 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — | |
— | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:23 | — | — | 6:24 | — | — | 6:25 | — | — | 6:25 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | — | — | — | — | — | — | 1 |
Temp °C | 17 | 18 | 16 | 12 | 13 | 12 | 14 | 15 | 13 | 14 | 14 | 13 | 13 | 12 | 12 | 13 | 14 | 12 | 13 | 14 | 12 |
Feels °C | 14 | 14 | 13 | 10 | 12 | 12 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 12 | 12 | 10 | 11 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | WSW 11 | WSW 10 | SW 7 | SW 7 | SW 7 | SW 6 | SW 12 | WSW 11 | WSW 10 | WSW 15 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 13 | WSW 15 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | W 13 |
375 | 136 | 119 | 86 | 73 | 27 | 77 | 145 | 116 | 167 | 258 | 547 | 1231 | 1293 | 2339 | 6675 | 5996 | 3578 | 2354 | 1915 | 1559 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 10 | W 10 | W 9 | WSW 11 | W 10 | WSW 12 | SSW 12 | SW 12 | WSW 10 | WSW 10 | — | — | WSW 20 | — | — | — | — | — | — | — |
6 | 24 | 67 | 41 | 40 | 48 | 57 | 52 | 89 | 72 | 111 | — | — | 38 | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SW 16 | W 16 | SSW 12 | WSW 12 | WSW 9 | SW 13 | SW 6 | SW 6 | SSW 5 | SW 11 | — | — | — | — | — | — | — | — | — | — | — |
10 | 5 | 53 | 46 | 26 | 61 | 12 | 5 | 3 | 30 | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | SW 7 | — | — | N 3 | — | — | — | — | — | N 3 | N 4 | — | — | — | — | — | — | — | — | — |
— | 115 | — | — | 2 | — | — | — | — | — | 4 | 10 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 60 | 0 | 55 | 55 | 0 | 0 | 22 | 0 | 48 | 55 | 0 | 0 | 43 | 0 | 0 | 48 | 0 | 0 | 16 | 5 |
Best forecast wave conditions in Santiago | |||||||||||||||||||||
Best forecast wave conditions in Chile | |||||||||||||||||||||
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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.











