Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 1 pm 13 Jul 2026 (local time)

Forecast update in  hr  min

Today's Matanzas sea temperature is
12.2° C
1.1° 

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


Matanzas surf forecast from 13 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 2AM (local time) - 11ft (3.5m), 14s period, WSW swell with glassy winds.
  • Most powerful swell: Monday 13 Jul, 11PM (local time) - 11ft (3.5m), 15s period, WSW swell with 5,025 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 14 Jul, 2AM (local time) - 11ft (3.5m), 14s 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 Tuesday (Jul 14) at 2AM. The primary swell is predicted to be 3.5m and 14s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Matanzas in the next 16 days are 3.5m 15s and forecast to arrive on Monday (Jul 13) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.5m 10s period and expected on Thursday (Jul 16) at 8PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 14th Jul)11ft (3.5m) 14s
Best Surf 2AM (Tue 14th Jul)11ft (3.5m) 14s
Most Powerful11PM (Mon 13th Jul)11ft (3.5m) 15s

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


The Lowdown

Alright, Rusty here, and let’s talk about Matanzas. This is a solid, reliable reef setup that’s exposed to the swell, and we’ve got a decent run ahead. The water is sitting at 54° which is a bit colder than normal for this time of year, so you’ll want a decent spring suit.

Right now, we’re looking at a bit of a gap. Nothing much doing on Monday afternoon – that’s today, the 13th – with a lumpy 10ft cross-onshore mess. Not worth paddling out. Things start to turn around on Tuesday morning the 14th. We’ve got clean conditions with the wind going cross-offshore from the NNE at 12 mph, and a solid 10ft groundswell from the WSW with a 13-second period. There’s a ton of energy in the water (3150). That’s going to be a proper, powerful wave at Matanzas, but the combined energy rating puts it in the strong category. It’s for intermediates and above. The wind stays clean all day Tuesday, but the afternoon sees a slight drop in energy.

Wednesday the 15th sees the swell ease back. The morning has a clean 5ft wave, but it’s shorter period. The afternoon picks up a bit of a summer-style wave with a 5ft NW swell at 8 seconds. The wind is light and cross-off, keeping it clean. Nothing to get too excited about.

Then we hit a real rough patch. Thursday the 16th is a write-off with strong winds and tiny, messy waves. Friday and Saturday are a mix of rain and choppy, cross-shore wind with the swell bouncing between 4ft and 7ft, but the quality just isn't there. Sunday morning the 19th has a clean 6ft wave, but the wind is up, and the rain is heavy – it’s not a fun paddle.

The real standout in this whole run is Thursday morning the 23rd of July. Mark that one down. Early, we’ve got glassy conditions with an 8ft groundswell from the WSW, riding a 12-second period. The wind is just a slight air from the ESE, so it will be absolutely clean. The combined energy is very strong (1722). This is an excellent day for experienced surfers – that size and power at a reef is not for beginners. The crowd profile says "sometimes" at Matanzas, so on a quality morning like this, expect some company.

After that, it gets a bit mixed. Friday the 24th and Saturday the 25th are smaller and sloppier. Then we get another solid swell arriving on Sunday morning the 26th, with a 10ft WSW groundswell at a very long 14-second period. The energy is massive (3228). The wind is light, but cross-shore, so it won’t be perfect. Still, a big, long-period groundswell will wrap in well at this reef.

The final call for the best waves comes on Tuesday the 28th. Tuesday morning, the 28th of July, has a massive 12ft WSW swell with a 12-second period and glassy conditions. The energy is extreme (3284). This is a serious, expert-only day. The wind is just a slight air from the SE, so it will be clean. The afternoon gets a bit onshore, but the morning session will be one to remember. This is the best on offer in the whole outlook.

So, to wrap it up: the first few days are messy. Get out there Tuesday the 14th morning for a solid, clean, powerful wave. But the absolute top pick of the 16-day window is that glassy, big morning on Thursday the 23rd, and then another heavy, clean morning on Tuesday the 28th.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu morning. Very mild (max 17°C on Mon afternoon, min 13°C on Mon night). Winds increasing (calm on Mon night, strong winds from the NNE by Thu morning).

Days 5-7 Weather Summary

Heavy rain (total 119mm), heaviest during Fri night. Very mild (max 14°C on Fri night, min 11°C on Sat night). Winds decreasing (gales from the N on Thu night, light winds from the ENE by Sat night).

Mon
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
3
5
4
3
3
2
3
0
0
0
0
2
0
0
3
2
3
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
W
16
3.5
WSW
14
3
WSW
13
3
WSW
13
2.1
WSW
12
1.5
WNW
10
1.5
NW
8
0.8
SW
10
0.6
SW
12
0.4
SW
17
0.8
SW
15
1.9
WNW
10
1.2
SW
13
0.8
SW
13
2.2
WNW
10
1.6
NW
9
1.5
WNW
11
1.7
WNW
11
1.6
WNW
11
1.3
W
11
1.1
W
11
Wave Graph
Metric surfscale
Energy kJ
4112
4757
3150
2508
1231
416
282
153
87
97
269
698
495
202
885
405
513
643
593
396
282
Wind (km/h)
15
SSW
5
E
20
NNE
20
NNE
15
NNE
20
NNE
10
NE
25
N
45
N
55
N
60
N
25
N
30
N
40
N
20
NNE
15
N
25
ENE
30
NE
45
NE
20
WSW
10
N
Wind State
cross-on
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
off
cross-off
cross-off
on
cross
High Tide
9:56PM0.93m
10:07AM1.66m
10:46PM0.97m
10:56AM1.68m
11:34PM1.01m
11:44AM1.65m
00:21AM1.04m
12:29PM1.56m
1:09AM1.06m
1:14PM1.43m
1:57AM1.08m
1:59PM1.27m
2:48AM1.08m
Low Tide
4:09PM0.02m
3:25AM0.13m
4:57PM-0.04m
4:16AM0.09m
5:43PM-0.06m
5:07AM0.08m
6:27PM-0.05m
5:58AM0.10m
7:10PM-0.01m
6:49AM0.17m
7:51PM0.06m
7:44AM0.26m
8:32PM0.14m
8:45AM0.35m
clear
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
heavy rain
heavy rain
rain showers
thunderstorm
heavy rain
rain showers
light rain
mod rain
heavy rain
mod rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:50
7:50
7:50
7:48
7:48
7:48
7:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
5:55
5:55
5:57
5:58
5:58
5:59
5:59
 mm
1
13
28
17
4
35
2
1
6
13
8
10
1
Temp °C
17
15
13
14
14
14
14
14
15
13
13
13
13
14
13
13
13
14
15
12
11
Feels °C
14
13
12
11
12
10
11
11
6
4
2
9
7
6
9
9
12
8
9
5
8
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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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