Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 1 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Matanzas sea temperature is
11.7° C
1.4° 

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


Matanzas surf forecast from 19 Jul 2026:

  • Best quality surf: Sunday 19 Jul, 5AM (local time) - 6ft (1.8m), 12s period, WNW swell with offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 8AM (local time) - 8ft (2.5m), 11s period, WNW swell with 1,435 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 5AM (local time) - 6ft (1.8m), 12s period with WNW 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 Sunday (Jul 19) at 5AM. The primary swell is predicted to be 1.8m and 12s period with a secondary swell of 0.9m and 11s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Matanzas in the next 16 days are 2.5m 11s and forecast to arrive on Wednesday (Jul 22) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 8s period and expected on Tuesday (Jul 21) at 11AM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 19th Jul)6ft (1.8m) 12s
Best Surf 5AM (Sun 19th Jul)6ft (1.8m) 12s
Most Powerful 8AM (Wed 22nd Jul)8ft (2.5m) 11s

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


The Lowdown

Right, let’s have a look at what’s coming up for the next couple of weeks. Honestly, the first week is a bit of a mixed bag, but there’s some real gold later on if you’ve got the patience.

We’re kickin’ off this Sunday morning, the 19th of July, with a solid little window. The swell is a clean 5ft out of the west, with a nice 11-second period giving it some proper push. The energy is moderate (724), and with a light cross-offshore breeze from the SE, it’s gonna be clean. The water temp is about average for the time of year, so nothing wild there. This is a real good time to get out – the sets will have some shape.

Sunday afternoon fades a bit as the wind swings onshore, so don’t expect much.

Monday the 20th has a bit of wind, but it’s offshore in the afternoon with a 3ft west swell, so it’ll be clean but small. The energy drops to 338. It’s rideable, but nothing to write home about.

Tuesday, the 21st, is a write-off. The wind is howling at 31 mph from the north-northeast, and the swell drops to 2ft. Forget it.

Now, Wednesday the 22nd morning is where things get interesting – but with a big caveat. We’ve got an 8ft swell from the west-northwest, energy is strong (1709), and the period is 11 seconds. This is powerful, but it’s up there for size. This is expert-only territory. If you’re not solid on a reef, stay out. The wind is cross-off, so it’ll be clean, but that’s a lot of water moving.

Thursday the 23rd and Friday the 24th are a bit of a lull, but hold on…

The standout is Friday the 24th morning. This is the one. The swell is 7ft from the west, 10-second period, and the wind is absolutely glassy. I mean, dead flat calm. Energy is 955. The wave comment says “expect very good surf conditions,” and I’m telling you, this is it. The sets will be clean, hollow, and the jellyfish will be the only thing bumping into you. This is the best morning of the whole outlook. Get on it.

Saturday the 25th is smaller, with a messy cross-shore wind, and the swell drops to 4ft. Sunday the 26th has a cleaner, longer-period swell (13-16 seconds) from the west-southwest, but it’s only 3ft at best. Still, the energy is decent (678) and it’s clean. Worth a paddle if you’re desperate.

Now, for the second week, we’ve got a big one on Monday the 27th morning. A 7ft west-northwest swell, energy hits 1589, and it’s clean with a light offshore. This is another one for the experienced crew. It’s not quite as big as Wednesday the 22nd, but it’s still a proper swell. The wind is better here.

The rest of that week is a bit of a mess with onshore winds and chop. Tuesday the 28th is a no-go.

The final true standout is on the 31st of July, Friday morning. Glassy conditions again, with a 3ft west swell. It’s small, but it’s clean as a whistle. Energy is 311. Then Friday afternoon, the swell stays 3ft but shifts to the west-southwest with a 15-second period – that’s a long-period groundswell. Energy jumps to 605. This will be super clean on the reef, but at that size, it’ll be a bit walled. Still, a very nice afternoon session.

The last few days of the first week of August have a 6ft west swell, but the wind is a bit onshore or cross-off, so it’s not the same quality as the 24th or the 27th.

In summary: The best on offer is Friday the 24th morning with 7ft glassy west swell, and the second best is Monday the 27th morning with a 7ft west-northwest swell. The 31st of July is a nice, clean, smaller option. The rest is either too windy, too small, or too big for the average punter.

Stay safe out there, and don’t be a hero on the big days.

Rusty

Short Range Forecast

Heavy rain (total 60mm), heaviest during Tue morning. Very mild (max 14°C on Sun afternoon, min 10°C on Sun night). Winds increasing (calm on Sun night, strong winds from the NNE by Tue morning).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 17°C on Fri night, min 12°C on Wed night). Wind will be generally light.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
1
1
2
1
0
0
0
3
3
3
2
1
4
4
3
3
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
W
11
1.4
WNW
11
1.2
W
11
1.1
W
11
1
W
11
0.8
W
11
0.6
W
11
0.5
W
11
1.3
WNW
9
2.2
WNW
11
1.9
WNW
11
1.5
W
10
1.2
W
9
1.2
W
9
2.1
W
11
2.1
W
11
1.9
W
11
1.6
W
10
1.4
W
10
1.2
W
10
0.9
WSW
14
Wave Graph
Metric surfscale
Energy kJ
545
469
350
303
248
157
85
57
276
1091
831
431
234
225
1065
999
804
510
371
262
346
Wind (km/h)
10
SE
10
S
10
S
20
ENE
20
E
20
ENE
50
NNE
40
NNE
30
N
15
NNE
5
WNW
5
SE
10
NNE
5
SSW
10
ESE
10
SE
15
ESE
10
SSE
10
SSW
15
SSW
15
S
Wind State
cross-off
cross
cross
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
cross-off
cross
off
cross-off
cross-off
cross-off
cross
cross
cross
High Tide
1:59PM1.27m
2:48AM1.08m
2:46PM1.10m
3:42AM1.09m
3:40PM0.95m
4:43AM1.09m
4:47PM0.82m
5:48AM1.11m
6:12PM0.76m
6:52AM1.15m
7:33PM0.75m
7:47AM1.20m
8:32PM0.78m
Low Tide
8:32PM0.14m
8:45AM0.35m
9:14PM0.23m
9:56AM0.43m
10:00PM0.32m
11:20AM0.47m
10:52PM0.39m
12:46PM0.45m
11:53PM0.43m
1:56PM0.39m
00:54AM0.43m
2:48PM0.33m
1:48AM0.40m
part cloud
cloud
heavy rain
rain showers
part cloud
mod rain
heavy rain
light rain
light rain
cloud
clear
part cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:48
7:47
7:47
7:46
7:45
7:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:59
5:59
6:00
6:00
6:00
6:01
6:02
 mm
20
4
9
18
4
5
1
1
Temp °C
13
14
12
10
13
12
12
13
13
14
15
13
13
14
14
15
16
17
17
18
17
Feels °C
11
12
11
6
9
9
6
5
5
11
13
12
11
13
11
12
13
15
15
16
15
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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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