Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 7 pm 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 20 Jul 2026:

  • Best quality surf: Friday 24 Jul, 2AM (local time) - 6ft (1.9m), 12s period, WSW swell with offshore winds.
  • Most powerful swell: Friday 24 Jul, 5AM (local time) - 7ft (2.1m), 11s period, W swell with 1,068 kJ wave energy.
  • Next surfable swell (1★+): Monday 20 Jul, 8AM (local time) - 3.5ft (1.1m), 11s period with W 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 (Jul 20) at 8AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.7m and 11s. 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 2.1m 11s and forecast to arrive on Friday (Jul 24) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Tuesday (Jul 21) at 11AM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 20th Jul)3.5ft (1.1m) 11s
Best Surf 2AM (Fri 24th Jul)6ft (1.9m) 12s
Most Powerful 5AM (Fri 24th Jul)7ft (2.1m) 11s

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


The Lowdown

Alright folks, Rusty here. Let’s break down what’s cookin’ over the next couple of weeks.

The first real swell we see hits on Monday, July 20th. The water temp is about normal for the time of year, no big deal. The morning delivers a clean 4ft W swell at 11 seconds, with light east offshore winds, and the combined energy is a solid moderate 422. That’s a nice, clean start. Monday afternoon drops a little to 3ft, but it’s still clean and offshore.

Tuesday the 21st is a total blowout. The wind is howling from the north-northeast at 31 mph, way too strong for any decent paddle surfing. The swell drops off too. Stay home.

Now, Wednesday the 22nd is where we get a proper standout. The morning session at Matanzas is looking prime. We’ve got a 6ft swell from the west-northwest, still with that 11-second period, and the combined energy is a strong 918. The wind is a light, clean offshore breeze from the northeast. This is the pick of the first week, no question. The afternoon has a touch more size at 7ft, but the wind swings cross-shore, so the morning is the winner.

Thursday the 23rd offers a brief, glassy moment in the morning. The swell is a clean 4ft from the west, but the period is a shorter 9 seconds, and the energy is moderate (357). The glassy conditions make it worth a look, but it’s not a standout. The afternoon gets grubby with onshore wind.

Friday the 24th sees the swell jump back up to 7ft, but the wind is a cross-shore mess, so the quality is marginal. Saturday the 25th is a better bet with a clean 5ft swell from the west and light offshore winds, energy is a strong 883 – that’s a fun, clean day.

Sunday the 26th is a special one. The swell is smaller, around 2ft to 3ft, but it’s a very long-period groundswell from the west, hitting 20 seconds in the morning (energy 866) and 18 seconds in the afternoon (energy 987). It’s dead glassy all day. This is a reef break, so that long period will make for some lined-up, juicy waves. Perfect for a longboard.

Then we get to Monday the 27th of July. The morning is absolutely firing for experienced surfers. The data shows the combined energy is a strong 1038, with a 5ft swell from the west-southwest at 15 seconds. The wind is a clean cross-offshore breeze. That’s a top-tier call. The afternoon gets a bit bigger but messier.

The following week has some promise. Tuesday the 28th has a glassy start with a 6ft W swell, but the period is short at 9 seconds. Wednesday the 29th and Thursday the 30th are a bit mixed, but Thursday afternoon looks good again with a glassy 5ft W swell. The real standout in the second week is Monday the 3rd of August. Monday afternoon is the pick: glassy conditions, 5ft W swell at 10 seconds, and a strong combined energy of 584. Clean, fun, and likely uncrowded.

Overall, the first week is the safer bet, with Wednesday the 22nd and Sunday the 27th being the real highlights. The second week is promising but less certain, with a potential gem on the 3rd of August. Keep an eye on the wind.

Rusty.

Short Range Forecast

Heavy rain (total 59mm), heaviest during Sun night. Very mild (max 14°C on Tue night, min 9°C on Mon morning). Winds decreasing (strong winds from the NNE on Tue morning, light winds from the N by Wed afternoon).

Days 5-7 Weather Summary

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

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
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
1
0
0
0
3
3
3
2
1
4
3
2
2
3
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
W
11
1.1
W
11
0.9
W
11
0.8
W
11
0.6
W
11
0.5
W
11
0.6
W
10
1.9
WNW
11
2
WNW
11
1.6
W
10
1.3
W
9
1
W
9
1.9
WSW
12
2.1
W
11
2
W
11
1.8
W
10
1.6
W
10
1.3
WSW
10
0.9
WSW
14
Wave Graph
Metric surfscale
Energy kJ
350
303
202
157
85
57
72
843
850
480
270
155
995
1068
951
693
562
356
361
Wind (km/h)
10
SW
10
E
15
E
20
NE
50
NNE
50
N
25
NE
10
NE
5
N
10
ENE
5
SW
15
ENE
5
ESE
15
S
15
SSW
5
S
15
ESE
5
ESE
10
SSW
Wind State
cross-on
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
glassy
cross-off
off
cross
cross-on
cross
off
cross-off
cross
High Tide
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
heavy rain
mod rain
rain showers
mod rain
heavy rain
light rain
rain showers
part cloud
part cloud
cloud
cloud
light rain
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
21
10
2
9
11
2
4
2
Temp °C
13
10
10
13
12
13
14
14
14
13
14
14
13
14
17
15
16
17
17
Feels °C
11
7
6
8
4
4
6
12
12
12
13
12
10
11
15
13
13
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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