
Surf Forecasts:
Matanzas surf forecast from 6 Aug 2026:
- Best quality surf: Saturday 8 Aug, 8AM (local time) - 10ft (3.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 8 Aug, 11AM (local time) - 10ft (3.0m), 14s period, SW swell with 3,189 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 5AM (local time) - 8ft (2.5m), 14s 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 08) at 5AM. The primary swell is predicted to be 2.5m and 14s period with a secondary swell of 0.1m and 24s. 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 3.0m 14s and forecast to arrive on Saturday (Aug 08) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 8th Aug) | 8ft (2.5m) 14s |
| Best Surf | 8AM (Sat 8th Aug) | 10ft (3.0m) 14s |
| Most Powerful | 11AM (Sat 8th Aug) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Matanzas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's cut through the noise and look at what’s cooking for Matanzas over the next couple of weeks.
This is a reef break that's very consistent, exposed to the swell, and likes it from the SW. The water temp is about average for this time of year. The first few days are a write-off, honestly. Thursday the 6th and Friday the 7th are a mess with lumpy cross-shore winds and weak, marginal surf. Best to sit those out.
Then it gets interesting. Saturday the 8th morning is the clear standout early on. We’ve got a solid 10ft SW groundswell with a 14-second period pumping in, and the combined energy is thumping. The wind is a gentle cross-offshore breeze, keeping it clean. This is excellent, proper reef-grinding surf, but that size is for experienced surfers only. The shape will be good, but expect some crowd pressure as it's a known spot.
The following days drop off a bit. Sunday and Monday have decent 7ft to 7ft SW swell but the wind is either cross or cross-onshore, making it choppy and less appealing. It's surfable for those keen, but not prime.
Now, the next serious highlight is Thursday the 13th and into Friday the 14th. Thursday is glassy. The wind is dead calm or a slight westerly, so the ocean will be like a mirror. The swell drops to 4ft, but it's a long-period 15 to 16-second WSW groundswell with moderate energy. This is a beautiful setup for that reef – long lines, clean, much more manageable. Not a big day, but the quality will be fantastic.
Then we’ve got Saturday the 15th morning. A 7ft W groundswell with glassy N winds. The energy jumps. That's a proper session for strong intermediates and above. Clean, powerful waves.
Looking further out, Monday the 17th morning is another glassy period with a 5ft WSW swell. Nice and clean again. Then Tuesday the 18th morning brings another big pulse: 8ft WSW at 16 seconds, very long period, with light cross-offshore winds. That’s a massive energy reading. This is another expert-only day due to the size and power, but the potential for long, racy waves is huge.
Overall, the first week is dull, but the second week has a few absolute gems. If you can, aim for the glassy mornings around the 13th, 15th, and 17th. The 8th and 18th are the big swell days, but they're for the experienced crew only.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Wed night. Very mild (max 13°C on Wed night, min 7°C on Fri morning). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 11°C on Sun afternoon, min 7°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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 14 | WSW 9 | WSW 13 | WSW 12 | WSW 12 | SW 11 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 |
Wave Graph | |||||||||||||||||||
2927 | 749 | 458 | 403 | 247 | 185 | 1542 | 3189 | 2803 | 2532 | 1607 | 2594 | 1991 | 1429 | 1169 | 748 | 396 | 288 | 121 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-on | cross | cross-off | cross | cross | cross | cross-on | cross-off | cross | cross-on | cross | cross | cross | cross |
High Tide | 3:31AM1.13m | 3:39PM0.85m | 4:42AM1.17m | 5:10PM0.77m | 6:02AM1.24m | 6:48PM0.76m | 7:14AM1.35m | 8:04PM0.82m | 8:16AM1.46m | 9:00PM0.90m | 9:09AM1.56m | 9:48PM0.98m | |||||||
Low Tide | 8:47PM0.29m | 10:06AM0.44m | 9:42PM0.35m | 11:45AM0.42m | 10:56PM0.37m | 1:14PM0.33m | 00:17AM0.35m | 2:20PM0.21m | 1:28AM0.28m | 3:12PM0.10m | 2:28AM0.19m | 3:57PM0.01m | 3:20AM0.11m | ||||||
— | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | |
6:09 | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | |
mm | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 10 | 13 | 10 | 10 | 11 | 10 | 10 | 11 | 9 | 9 | 11 | 9 | 9 | 10 | 9 | 10 | 11 | 10 |
Feels °C | 8 | 5 | 9 | 5 | 5 | 4 | 6 | 5 | 5 | 3 | 4 | 4 | 4 | 6 | 6 | 5 | 6 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 9 | WSW 8 | SW 8 | SW 7 | SW 11 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 |
2927 | 749 | 392 | 244 | 199 | 185 | 1542 | 3189 | 2803 | 2532 | 1607 | 2594 | 1991 | 1429 | 1169 | 748 | 396 | 288 | 121 | |
Swell 2 Height (m) Direction Period (s) | NW 11 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 16 | SW 24 | SW 21 | SW 20 | SW 18 | SW 16 | — | W 9 | WSW 18 | W 8 | W 8 | WSW 15 | WSW 16 | SW 4 |
5 | 545 | 458 | 403 | 247 | 173 | 22 | 117 | 99 | 327 | 1057 | — | 2 | 31 | 1 | 1 | 135 | 142 | 15 | |
Swell 3 Height (m) Direction Period (s) | — | NW 12 | — | WSW 18 | SW 17 | W 9 | W 11 | — | — | — | — | — | — | — | — | — | W 10 | — | WSW 14 |
— | 5 | — | 31 | 74 | 6 | 2 | — | — | — | — | — | — | — | — | — | 2 | — | 113 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 125 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 60 | 60 | 291 | 43 | 48 | 364 | 43 | 0 | 390 | 43 | 48 | 364 | 0 | 16 | 48 | 16 | 48 | 364 | 16 |
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.











