Surf Forecasts:
Matanzas surf forecast from 24 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 6,101 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 5PM (local time) - 2.5ft (0.8m), 11s 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 Monday (Aug 24) at 5PM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.4m and 12s. 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 0.4m 3s period and expected on Saturday (Aug 29) at 11AM.
| Wave Type | Time (-04) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Mon 24th Aug) | 2.5ft (0.8m) 11s |
| 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
Alright, this is Rusty. Let's get into it.
Right now, we're in a bit of a flat spell. The first few days have some waves, but it's not really worth paddling out for. From Monday the 24th through to Wednesday the 26th, the swell is small, mostly around 2 ft to 6 ft, and the wind is a bit messy. The water temperature is sitting at 56°F, which is pretty average for this time of year. The real action starts to kick off on Thursday, the 27th of August.
Thursday morning the 27th is the standout. This is a proper session. We're looking at a solid 13 ft swell from the WSW, with a very long period of 15 seconds. The wind is glassy, coming from the SSW at just 3 mph. The wave energy is absolutely pumping, with a reading of 6101. This is heavy, expert-only territory. The break is a reef, so it will handle that long-period swell well, but if you're not experienced, stay on the beach. That afternoon, the wind swings cross-on and the swell drops to 12 ft, so it's still big but a bit less clean.
Friday the 28th holds well. The swell is still a solid 8 ft from the WSW, with a period of 13 seconds. The wind is glassy again in the morning from the NNE at 3 mph, and it stays glassy in the afternoon with a light westerly. This is excellent for experienced surfers, with wave energy around 2553. It's a step down from Thursday but still a fantastic wave.
After that, the surf drops off. Saturday the 29th and Sunday the 30th have some swell around 5 ft to 6 ft, but the wind is a bit cross and the quality is marginal. The following week, from the 31st of August through to the 8th of September, is a mixed bag. There's a few pulses of energy, like on the 3rd of September with a 7 ft swell, but the wind is mostly cross or cross-on, making it choppy. The best of the later period looks to be Friday morning the 4th of September, with a 6 ft swell from the WSW and a clean cross-off wind from the NNE at 6 mph. Wave energy is about 1013 – moderate, but it's a clean window.
The crowds at Matanzas (Santa Catarina) are *sometimes* an issue, and this is a reef break that's very consistent. It's a reliable spot, but when it's this good, you might not be alone.
-Rusty
Short Range ForecastModerate rain (total 12mm), heaviest on Wed afternoon. Very mild (max 14°C on Tue morning, min 10°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sat afternoon, min 10°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | SW 12 | WSW 11 | SW 12 | WSW 15 | WSW 14 | WSW 13 | WSW 10 | WSW 10 | WSW 13 | WSW 15 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | W 12 | W 12 | W 11 | WSW 11 | WSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 77 | 145 | 106 | 167 | 273 | 290 | 391 | 634 | 1733 | 6101 | 4970 | 3400 | 2553 | 2103 | 1405 | 944 | 800 | 687 | 640 | 593 | 767 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross | cross | cross-off | off | cross-off | glassy | cross-on | off | glassy | glassy | glassy | cross | cross-on | cross-off | cross | cross | cross-off |
High Tide | 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 | 11:00AM1.39m | 11:25PM1.16m | 11:32AM1.34m | 11:57PM1.21m | |||||||
Low Tide | 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 | 5:23PM0.07m | 5:18AM0.14m | 5:49PM0.09m | ||||||||
 | |  | | | |  |  |  |  | | |  | |  | | | | | | | |
 | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — |
 | — | 6:23 | — | — | 6:23 | — | — | 6:24 | — | — | 6:25 | — | — | 6:25 | — | — | 6:27 | — | — | 6:28 | — |
mm | — | — | — | — | — | — | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 13 | 14 | 13 | 13 | 12 | 11 | 11 | 13 | 13 | 11 | 13 | 14 | 13 | 14 | 15 | 13 | 14 | 15 | 13 |
Feels °C | 10 | 11 | 13 | 12 | 11 | 10 | 11 | 9 | 9 | 11 | 10 | 10 | 11 | 12 | 10 | 11 | 12 | 11 | 11 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 12 | WSW 11 | WSW 10 | WSW 15 | WSW 14 | WSW 9 | WSW 10 | WSW 10 | WSW 13 | WSW 15 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | W 12 | W 12 | W 11 | WSW 11 | WSW 12 |
| kJ | 77 | 145 | 106 | 167 | 273 | 149 | 391 | 634 | 1733 | 6101 | 4970 | 3400 | 2553 | 2103 | 1405 | 944 | 800 | 687 | 640 | 593 | 767 |
Swell 2 Height (m) Direction Period (s) | WSW 12 | SSW 12 | SW 12 | WSW 10 | WSW 10 | WSW 13 | WSW 12 | WSW 12 | — | — | — | — | — | — | — | — | — | SW 20 | WSW 15 | WSW 14 | SW 16 |
| kJ | 57 | 52 | 89 | 72 | 55 | 290 | 308 | 155 | — | — | — | — | — | — | — | — | — | 15 | 121 | 189 | 41 |
Swell 3 Height (m) Direction Period (s) | W 9 | SW 16 | W 16 | SW 11 | — | — | NNW 4 | WSW 20 | — | — | — | — | — | — | — | — | — | S 11 | SW 18 | WSW 18 | WSW 19 |
| kJ | 25 | 66 | 20 | 29 | — | — | 18 | 38 | — | — | — | — | — | — | — | — | — | 2 | 13 | 31 | 37 |
Wind waves Height (m) Direction Period (s) | N 3 | — | — | — | N 3 | NNW 5 | — | — | — | — | — | — | — | — | — | NE 3 | — | — | — | — | — |
| kJ | 1 | — | — | — | 4 | 37 | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 43 | 0 | 0 | 0 | 118 | 53 | 0 | 0 | 0 | 0 | 48 | 0 | 0 | 0 | 0 | 43 | 22 | 0 | 43 | 364 | 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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