Surf Forecasts:
Matanzas surf forecast from 7 Aug 2026:
- Best quality surf: Saturday 8 Aug, 5AM (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 3,699 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 5AM (local time) - 10ft (3.0m), 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 3.0m 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) | 10ft (3.0m) 14s |
| Best Surf | 5AM (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, let’s break it down, folks. This stretch at Matanzas starts slow, so don’t be in a rush.
Friday the 7th is a write-off. Small swell around 3 feet from the WSW, but the wind is messing with it, and the energy is moderate. Not worth paddling out.
Here comes the good stuff: Saturday morning the 8th. We’re talking a solid 10-foot groundswell from the SW, with a long 14-second period. The combined wave energy is pumping (3816). Light, clean offshore wind will have the reef lines looking perfect. This one is for experts only – at 10 feet with that long period, it’s heavy and powerful. If you’re not ready for it, give it a wide berth. The afternoon gets windy and choppy, so make your move early.
Sunday the 9th still has an 8-foot swell, but the wind is on it, so it won’t be as clean. Monday the 10th drops to around 7 feet, rideable but nothing special.
From Tuesday the 11th, we hit a dry spell. Swell drops to waist-high or smaller, mostly under 4 feet through the middle of the month. There’s a brief window on Thursday the 13th morning with a 4-foot swell and a very long 16-second period, clean light winds. It’s a small window for a fun wave, but not the main attraction.
Further ahead, Friday the 21st morning has a pulse of 5-6 feet from the SW with a 14-second period and light wind. Keep it on the radar, but it’s long-range talk.
And way out on Wednesday the 19th, there’s a big 8-foot swell possible, but we’ll see what the weather does between now and then.
So, the call is easy: Saturday morning the 8th is your standout session. After that, a long quiet spell. The spot usually finds waves again, but this looks like a big gap.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Very mild (max 12°C on Fri afternoon, min 7°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 12°C on Wed afternoon, min 8°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 12 | WSW 12 | WSW 11 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 19 | WSW 18 | WSW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 403 | 247 | 426 | 1109 | 3699 | 3137 | 2567 | 1972 | 2846 | 2344 | 1486 | 1095 | 666 | 326 | 278 | 119 | 203 | 438 | 590 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross-off | cross-on | cross | cross | cross-on | cross-off | cross | cross | cross | cross | cross-on | cross-off | cross | cross | cross-off |
High Tide | 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 | 9:56AM1.62m | 10:31PM1.06m | |||||||
Low Tide | 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 | 4:38PM-0.05m | 4:09AM0.06m | ||||||
 |  |  |  | | |  | | | |  | |  | | | | | | | |
 | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — |
 | 6:10 | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — |
mm | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 10 | 12 | 11 | 10 | 11 | 9 | 10 | 11 | 9 | 10 | 11 | 10 | 10 | 11 | 10 | 10 | 12 | 11 |
Feels °C | 7 | 6 | 8 | 8 | 7 | 7 | 4 | 5 | 5 | 4 | 7 | 7 | 6 | 7 | 7 | 6 | 6 | 8 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 7 | WSW 11 | SW 11 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 19 | WSW 18 | WSW 16 |
| kJ | 268 | 160 | 426 | 819 | 3699 | 3137 | 2567 | 1972 | 2846 | 2344 | 1486 | 1095 | 666 | 326 | 278 | 119 | 203 | 438 | 590 |
Swell 2 Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 16 | SW 14 | SW 21 | SW 20 | SW 18 | SW 16 | — | — | WSW 18 | — | WSW 18 | WSW 15 | WSW 15 | WSW 14 | W 6 | SW 10 | WSW 6 |
| kJ | 403 | 247 | 173 | 1109 | 117 | 99 | 383 | 964 | — | — | 31 | — | 33 | 135 | 42 | 116 | 17 | 33 | 19 |
Swell 3 Height (m) Direction Period (s) | WSW 18 | SW 17 | W 9 | SW 24 | — | — | — | — | — | — | — | — | — | — | — | WSW 6 | SW 10 | WSW 13 | SW 9 |
| kJ | 31 | 74 | 6 | 22 | — | — | — | — | — | — | — | — | — | — | — | 18 | 49 | 57 | 21 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 24 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 43 | 48 | 364 | 5 | 0 | 48 | 43 | 48 | 250 | 0 | 16 | 48 | 16 | 16 | 48 | 0 | 16 | 121 | 0 |
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.
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