Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 2 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Matanzas sea temperature is
13.3°C
0.4° 

Matanzas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Matanzas surf forecast from 13 Sep 2026:

  • Best quality surf: Monday 14 Sep, 3AM (local time) - 4ft (1.2m), 15s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 14 Sep, 9AM (local time) - 4.5ft (1.4m), 14s period, WSW swell with 789 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 3AM (local time) - 4ft (1.2m), 15s 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 (Sep 14) at 3AM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 1.2m and 8s. 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 1.4m 14s and forecast to arrive on Monday (Sep 14) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 14th Sep)4ft (1.2m) 15s
Best Surf 3AM (Mon 14th Sep)4ft (1.2m) 15s
Most Powerful 9AM (Mon 14th Sep)4.5ft (1.4m) 14s

Table - best surf conditions forecast for Matanzas over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's have a look at what's coming down the pipe at Matanzas.

Right off the bat, we’ve got a bit of a slow start. The first real surfable option doesn't pop up until Tuesday morning, September 15th. Before that, Sunday and Monday are pretty grim with messy, onshore wind and weak, small swell. The water temp is sitting at a normal 56° for the time of year, nothing wild.

Tuesday morning the 15th is the first glimmer of hope. The wind swings light and cross-offshore, cleaning things up. We get a modest 4ft swell from the WSW with a moderate 13-second period, but the combined wave energy is still pretty weak at 563. It’s clean, but don’t expect anything too exciting. The afternoon gets chopped out again.

Wednesday the 16th sees the swell drop right off. We’ve got a tiny 2ft glassy wave in the morning, but with combined energy of just 177, it’s really marginal. Fun for a log if you’re desperate.

Thursday the 17th morning is the first real standout. The wind goes glassy, dead calm, and the swell picks up a bit to 4ft from the SW. The catch? The period is only 7 seconds – short-period windswell, so it'll be a bit fat and sectiony. But glassy conditions make anything fun.

Then we hit a long, dull stretch. From Thursday afternoon all the way through to Wednesday the 23rd, it’s a mix of cross-onshore winds, chop, and tiny swell. There’s a brief look on Saturday the 19th morning with a clean 4ft from the WSW and offshore ENE breeze at 6 mph – decent for a session, but nothing to write home about.

Things finally start to get interesting as we head into the second week. Thursday the 24th morning brings a clean 3ft from the west with a cross-offshore NNE breeze at 9 mph. It's a solid, clean option for a Thursday surf.

Now, for the true standout – and this one is for experienced surfers only – look at Friday the 25th morning. We’ve got a proper 6ft west swell with a long 13-second period and combined energy pumping at 1285 (strong). The wind is light and cross-offshore from the NE at 6 mph, keeping it clean. This is where Matanzas reef really starts to shine. It’s big, powerful, and lined up. Not for beginners.

If you can hold out, Saturday the 26th morning is even better. A 7ft west swell, 13-second period, combined energy of 1593 (very strong), and glassy conditions with a light SE breeze at 3 mph. This is the pick of the entire forecast. Clean, heavy, and consistent. This is expert territory, no question.

After that, Sunday the 27th morning still has a clean 5ft from the WSW, but the size drops and the winds turn cross-off again. Monday the 28th is a write-off with onshore winds and choppy conditions.

So, to sum it up: the first week is mostly a write-off with a few clean but small windows. The true standouts are Friday the 25th and Saturday the 26th mornings. Get ready for some heavy, clean west swell at the reef if you've got the skills.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 19°C on Tue afternoon, min 11°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Thu morning, min 12°C on Thu night). Wind will be generally light.

Sun
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
2
0
3
3
0
1
1
1
1
2
1
1
1
1
1
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
WSW
17
1.2
WSW
16
1.4
WSW
14
1.4
WSW
14
1.3
WSW
13
1.2
WSW
13
1.1
WSW
12
1
WSW
12
0.6
WSW
12
0.7
SW
12
1.3
SW
7
1.1
SW
7
0.9
WSW
13
1.2
WSW
12
1
WSW
11
0.9
WSW
11
1
WSW
11
1.3
WSW
10
1.2
WSW
10
1.4
WSW
11
Wave Graph
Metric surfscale
Energy kJ
428
715
789
704
534
476
353
289
94
142
179
105
298
405
259
206
214
320
294
450
Wind (km/h)
15
SW
15
S
10
S
15
SSW
15
SE
10
SSE
15
SSW
15
S
5
SSE
5
WSW
10
S
5
SSE
10
SW
5
S
10
SSW
10
WSW
10
S
10
ENE
10
SW
5
WSW
Wind State
cross-on
cross
cross
cross-on
cross-off
cross-off
cross-on
cross
glassy
cross-on
cross
glassy
cross-on
cross
cross
cross-on
cross
off
cross-on
on
High Tide
00:55AM1.33m
1:10PM1.17m
1:31AM1.31m
1:47PM1.03m
2:09AM1.26m
2:27PM0.90m
2:51AM1.18m
3:15PM0.78m
3:46AM1.11m
4:31PM0.69m
5:04AM1.05m
6:42PM0.67m
Low Tide
6:41PM0.08m
7:09AM0.13m
7:11PM0.16m
7:53AM0.21m
7:40PM0.26m
8:42AM0.31m
8:10PM0.35m
9:43AM0.40m
8:45PM0.44m
11:10AM0.46m
9:39PM0.52m
12:58PM0.45m
11:25PM0.56m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:47
7:46
7:43
7:43
7:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:37
7:37
7:38
7:39
7:39
7:40
 mm
Temp °C
15
12
15
18
16
18
19
15
17
16
14
17
17
14
15
16
14
15
15
13
Feels °C
12
8
12
14
13
16
16
12
16
15
14
17
16
12
14
15
13
14
13
13
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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