
Surf Forecasts:
Matanzas surf forecast from 5 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: Thursday 6 Aug, 2AM (local time) - 10ft (3.0m), 14s period, WSW swell with 3,436 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 5AM (local time) - 7ft (2.2m), 12s period with WSW 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 Wednesday (Aug 05) at 5AM. The primary swell is predicted to be 2.2m and 12s period with a secondary swell of 0.6m and 18s. 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 Thursday (Aug 06) at 2AM. 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+) | 5AM (Wed 5th Aug) | 7ft (2.2m) 12s |
| Best Surf | 8AM (Sat 8th Aug) | 10ft (3.0m) 14s |
| Most Powerful | 2AM (Thu 6th Aug) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Matanzas over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s have a look at what’s coming up for Matanzas over the next couple of weeks.
Right off the bat, we’ve got a solid pulse of south-west swell rolling in, but it’s not all clean and easy. The first real standout window is actually not for a few days, so you’ll want to be patient. The good news is there’s plenty of size on the way, but the wind is gonna be the main player here.
Wednesday the 5th sees a 8ft WSW swell with a 12-second period and a light west wind early, making it glassy. That’s a decent start, but the afternoon turns north and cross-shore, so the morning is your pick. The combined energy is moderate (1430). Thursday the 6th gets bigger, with a 8ft WSW swell, but the southerly wind is up to 12-15 mph and cross-shore, so it’ll be a messy, chop-filled affair. Not the day for a clean session.
Friday the 7th drops off fast – down to 3ft – and the wind is cross to cross-onshore, so it’s pretty ordinary. Then Saturday the 8th fires up again: a 10ft SW swell with a 14-second period, and a light south wind (9 mph) in the morning. That’s a big, powerful groundswell (combined energy 3003) – more than 8ft, so this is expert territory only. The afternoon wind picks up to 15 mph from the SSW, making it choppy, so the morning window is your best shot if you’ve got the skill.
Sunday the 9th is still large (8ft to 8ft) but the wind is cross-shore in the morning, then cross-onshore and choppy in the afternoon. Not great. Monday the 10th drops to 7ft with a very light south breeze in the morning – that’s almost glassy, and the swell is still a solid 13-second SW groundswell. That’s a strong candidate for the best of the first week: clean, moderate energy (1461), and manageable size for strong intermediates.
Now, the real standout pops up on Wednesday the 12th. It’s a smaller day, only 2ft, but the swell direction is WSW with a massive 19-second period – that’s a very long-period groundswell. The wind is a light north-northeast cross-offshore, and the conditions are clean. Combined energy is low (455), but the quality of the wave shape will be excellent for a reef break like Matanzas. This is a classic long-period, glassy morning – perfect for the experienced surfer who knows how to read a slow, lined-up set. The crowd is only “sometimes” an issue here, so you might get some waves to yourself.
The rest of the second week goes a bit quiet. Thursday the 13th has 4ft to 4ft WSW swell with a long period (16-15 seconds), but the wind is strong south at 12 mph, making it cross-shore and choppy. Not worth it. Friday the 14th is small and messy. Saturday the 15th has a fresh 22 mph north-northeast cross-offshore wind, but the swell is only 3ft to 4ft – clean but tiny. Sunday the 16th is small and cross-shore.
Then there’s a late pulse: Tuesday the 18th afternoon sees a 7ft WSW swell with a 15-second period, light wind, and combined energy hitting 2094 – that’s moderate to strong. But the wind is cross-onshore, so it’s okay but not perfect. The real late gem is Wednesday the 19th afternoon: 7ft WSW swell, a 13-second period, and a light south-southeast cross-offshore wind. The conditions are clean, and the file says “excellent surf conditions for experienced surfers” – that’s a big call. The combined energy is 1321. Given the size (7ft is still solid), this is another one for the experts only.
The overall best on offer? Wednesday the 12th morning for the clean, glassy long-period gem, and Wednesday the 19th afternoon for the bigger, clean, powerful swell. If you’re after size and don’t mind a bit of chop, Saturday the 8th morning is also a big one, but only for the brave.
The water temperature is about average for the time of year – no major anomaly to worry about.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Wed night. Very mild (max 14°C on Wed morning, min 8°C on Thu night). Winds increasing (calm on Wed morning, fresh winds from the SSW by Wed night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 11°C on Sat morning, min 6°C on Sun morning). Wind will be generally light. | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 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) | WSW 13 | WSW 12 | WSW 14 | WSW 14 | WSW 9 | WSW 13 | WSW 12 | WSW 12 | SW 11 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 |
Wave Graph | |||||||||||||||||||
1344 | 1425 | 2122 | 3436 | 1048 | 458 | 403 | 247 | 185 | 1752 | 2886 | 2722 | 2241 | 1972 | 2704 | 1991 | 1429 | 1188 | 736 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 2:34AM1.11m | 2:34PM0.97m | 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 | |||||||
Low Tide | 8:06PM0.24m | 8:44AM0.40m | 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 | ||||||
— | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | |
6:09 | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | |
mm | — | — | — | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 14 | 13 | 10 | 12 | 10 | 10 | 11 | 10 | 11 | 11 | 9 | 9 | 10 | 9 | 9 | 10 | 9 |
Feels °C | 10 | 13 | 12 | 7 | 5 | 7 | 5 | 5 | 4 | 6 | 6 | 5 | 3 | 4 | 4 | 4 | 6 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 12 | WSW 14 | NW 11 | WSW 9 | WSW 9 | SW 8 | WSW 12 | SW 11 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 |
1344 | 1425 | 2122 | 5 | 1048 | 444 | 281 | 247 | 185 | 1752 | 2886 | 2722 | 2241 | 1972 | 2704 | 1991 | 1429 | 1188 | 736 | |
Swell 2 Height (m) Direction Period (s) | WSW 18 | NW 11 | NW 12 | — | WSW 13 | WSW 13 | WSW 12 | SW 17 | WSW 16 | SW 24 | SW 21 | SW 20 | SW 18 | SW 17 | W 9 | W 9 | WSW 18 | W 8 | WSW 18 |
209 | 5 | 5 | — | 545 | 458 | 403 | 74 | 173 | 22 | 117 | 99 | 449 | 540 | 2 | 2 | 31 | 1 | 32 | |
Swell 3 Height (m) Direction Period (s) | NW 11 | — | — | — | — | — | WSW 18 | NW 12 | W 9 | — | — | — | — | — | — | — | W 8 | — | W 8 |
5 | — | — | — | — | — | 31 | 5 | 6 | — | — | — | — | — | — | — | 1 | — | 1 | |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 14 | — | — | — | SW 7 | SW 7 | — | — | — | — | — | — | — | — | — | — |
— | — | — | 3436 | — | — | — | 199 | 139 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 16 | 43 | 142 | 248 | 48 | 291 | 48 | 121 | 48 | 43 | 16 | 364 | 43 | 48 | 364 | 43 | 16 | 48 | 16 |
Best forecast wave conditions in Santiago | |||||||||||||||||||
Best forecast wave conditions in Chile | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











