Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 1 pm 16 Jul 2026 (local time)

Forecast update in  hr  min

Today's Matanzas sea temperature is
12.0° C
1.2° 

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


Matanzas surf forecast from 17 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 2PM (local time) - 13ft (4.0m), 13s period, W swell with glassy winds.
  • Most powerful swell: Wednesday 22 Jul, 11AM (local time) - 13ft (4.0m), 13s period, W swell with 5,239 kJ wave energy.
  • Next surfable swell (1★+): Saturday 18 Jul, 8PM (local time) - 6ft (1.9m), 10s period with NW 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 Saturday (Jul 18) at 8PM. The primary swell is predicted to be 1.9m and 10s period with a secondary swell of 0.9m 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 13s and forecast to arrive on Wednesday (Jul 22) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 10s period and expected on Friday (Jul 17) at 2PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 18th Jul)6ft (1.9m) 10s
Best Surf 2PM (Wed 22nd Jul)13ft (4.0m) 13s
Most Powerful11AM (Wed 22nd Jul)13ft (4.0m) 13s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s in store for Matanzas.

First up, it’s a reef break, very consistent, and exposed to the swell. The water is sitting at 54°, which is a bit colder than normal for this time of year – so don’t be fooled by the summer dates, you’ll want a decent spring suit.

Honestly, the next few days are a write-off. Thursday afternoon and Friday are a mess with heavy rain, strong winds, and messy surf. The swell is there but the conditions are just poor. We’ve got a gap of a couple of days where the surf is not really worth paddling out for.

The first real hope comes on Sunday the 19th. The morning shows a 5ft swell from the WNW with an 11-second period and a light offshore breeze from the ENE. That’s clean. The afternoon gets even better – glassy conditions with a 4ft WNW swell. The combined energy is moderate (761 in the morning, 592 in the afternoon). This is your best bet for the first week. It’s not massive, but it’ll be fun and clean for an intermediate.

Monday the 20th also holds clean, glassy conditions, but the swell drops a bit to 4ft and 3ft. Still decent.

Then we hit another rough patch. Tuesday and Wednesday see onshore junk and a big spike in size – Wednesday morning has a 13ft swell from the W with a 13-second period, but it’s blown out with cross-onshore winds. That’s a lot of water moving (combined energy over 5000), but the wind ruins it. That’s more of a kite-surfing kind of day.

Now, here’s the standout of the whole outlook: Thursday the 23rd. The morning session is looking excellent. A 10ft swell from the W with a 12-second period, and a light offshore breeze from the E. The combined energy is strong (2285). This is solid, powerful groundswell, and with offshore wind, Matanzas will be firing. This is only for experienced surfers though – that size is serious. The afternoon drops a bit to 8ft, but still with clean-ish conditions.

After that, the swell backs off, and we’re into smaller, more marginal surf for the rest of the month. The morning of the 28th looks okay with a 3ft SSW swell and a 13-second period, clean conditions, but nothing to write home about. The 29th sees a bump in size again (8ft) but with cross-shore winds, so it’s messy.

Bottom line: don’t waste your time this week. Get out on Sunday the 19th for a fun, clean session, or hold out for Thursday the 23rd if you’ve got the skills for a solid, powerful swell with clean conditions. That’s the one to circle.

Rusty.

Short Range Forecast

Heavy rain (total 106mm), heaviest during Fri morning. Very mild (max 14°C on Fri afternoon, min 11°C on Fri morning). Winds decreasing (gales from the N on Thu afternoon, light winds from the SE by Sun morning).

Days 5-7 Weather Summary

Heavy rain (total 56mm), heaviest during Tue morning. Very mild (max 13°C on Mon afternoon, min 10°C on Mon morning). Winds increasing (calm on Sun night, strong winds from the N by Tue morning).

Thu
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
1
0
0
1
2
4
3
3
2
2
2
0
0
0
3
0
4
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
WNW
11
2.3
WNW
10
1.7
WNW
10
0.8
SW
13
1
SW
13
2.1
WNW
9
1.9
NW
9
1.8
WNW
12
1.6
WNW
11
1.3
WNW
11
1.2
W
11
1.1
W
11
1
W
11
0.8
W
11
0.5
W
11
0.1
SW
26
3.5
WNW
13
4
W
13
3.5
W
12
3.5
W
13
Wave Graph
Metric surfscale
Energy kJ
2337
1082
527
246
330
673
599
923
582
407
350
298
248
157
62
27
3606
5239
4155
3602
Wind (km/h)
55
NNE
30
NNE
35
N
50
N
35
NNW
25
N
20
N
5
ENE
10
ENE
5
W
5
NNE
15
NE
5
NNW
25
N
45
N
40
N
25
N
30
NNW
15
NE
10
NE
Wind State
cross-off
cross-off
cross-off
cross
cross-on
cross
cross
cross-off
off
glassy
glassy
cross-off
glassy
cross
cross
cross
cross-off
cross-on
cross-off
cross-off
High Tide
00:21AM1.04m
12:29PM1.56m
1:09AM1.06m
1:14PM1.43m
1:57AM1.08m
1:59PM1.27m
2:48AM1.08m
2:46PM1.10m
3:42AM1.09m
3:40PM0.95m
4:43AM1.09m
4:47PM0.82m
Low Tide
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
9:14PM0.23m
9:56AM0.43m
10:00PM0.32m
11:20AM0.47m
10:52PM0.39m
heavy rain
heavy rain
heavy rain
heavy rain
rain showers
rain showers
thunderstorm
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cloud
cloud
light rain
rain showers
part cloud
mod rain
heavy rain
heavy rain
rain showers
mod rain
light rain
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:48
7:48
7:48
7:47
7:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:58
5:58
5:59
5:59
6:00
6:00
 mm
22
15
34
16
13
3
2
1
4
1
8
13
12
12
6
2
1
Temp °C
12
13
13
14
14
14
14
12
12
12
12
10
13
13
12
12
13
13
12
12
Feels °C
-1
5
7
6
6
9
9
9
10
11
11
6
12
12
4
4
6
8
8
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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