Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 1 pm 12 Jul 2026 (local time)

Forecast update in  hr  min

Today's Matanzas sea temperature is
11.5° C
1.8° 

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


Matanzas surf forecast from 12 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, 8PM (local time) - 10ft (3.0m), 16s period, WSW swell with 4,954 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 3.0m 16s and forecast to arrive on Monday (Jul 13) at 8PM. 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 11PM.

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 Powerful 8PM (Mon 13th Jul)10ft (3.0m) 16s

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


Alright, let me break down what Matanzas is serving up over the next couple weeks. It’s a mixed bag, no doubt, but there are a few clean windows of solid surf if you pick your spots.

Right off the bat, Sunday the 12th is a total dud. That’s a weak 3ft southwest swell at 13 seconds, but the cross-onshore wind chops it all to pieces. The water’s at 53°, which is about 3° colder than average for this time of year, so it’s a bit on the chilly side.

Monday the 13th shows some promise – a 7ft west swell in the morning with a long 18-second period, and the wave energy is pumping. The wind is light cross-shore, so the potential is there, but the call is marginal, likely due to tide. It jumps to 10ft in the afternoon from the west, but the wind goes cross-onshore and it gets choppy. Pass.

Tuesday the 14th holds that 10ft swell from the west-southwest. The morning has light cross-shore winds – still only marginal. The real standout here is Tuesday afternoon: same 10ft from the west-southwest, the wind turns cross-offshore and cleans right up. That’s a proper session for experienced surfers only – that size is no joke.

Wednesday the 15th drops hard to 5ft then 3ft, with messy cross-shore wind. Thursday and Friday are blown out with strong winds, lumpy conditions, and poor surf. A real low point.

Now here’s the good news. Saturday the 18th rolls in with a clean 5ft west-southwest swell at 12 seconds, solid wave energy, and light cross-offshore winds. Excellent conditions for experienced surfers – that’s the best quality window in the whole outlook. The morning is the pick, but the afternoon stays clean too.

Sunday the 19th keeps the stoke going: 5ft from the west-northwest, and the wind goes glassy in the afternoon with flat calm – 0 mph. That’s a magic window for Matanzas – clean, consistent, and a friendly size.

Then things get wild. Monday the 20th, the swell explodes to 15ft from the west-northwest, with massive wave energy. That’s big, burly, expert-only territory, and the wind is onshore and sloppy – more for tow-surfing than paddling.

The rest of the week sees the swell drop back to 5ft to 8ft, but wind is often cross-on or cross-shore with chop. Thursday the 23rd morning is a second standout: 10ft from the west-southwest, light cross-offshore wind, and excellent conditions for experienced surfers again.

Friday the 24th and Saturday the 25th both offer clean, manageable 7ft and 6ft swells from the southwest, with light cross-offshore winds – good for a fun, uncrowded session.

The very end, Monday the 27th, has a sneaky 3ft long-period groundswell from the west-southwest at 18 seconds. The energy’s low, but it’s clean with offshore wind. Could be fun for a log or a fish.

Bottom line: hit Matanzas on Tuesday afternoon the 14th for the big clean swell, and then the whole Saturday 18th through Sunday 19th window for the best all-around quality. Thursday the 23rd morning is also a gem for the experienced crew. The rest is either too small, too big, or too messy.

This is Rusty, signing off.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 101mm), heaviest during Thu night. Very mild (max 15°C on Wed afternoon, min 11°C on Fri night). Winds decreasing (gales from the NNE on Thu night, light winds from the NE by Sat morning).

Sun
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
1
3
3
5
4
3
4
1
1
2
0
0
0
0
1
4
4
3
3
3
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)
0.8
SW
13
0.9
SW
13
2
W
18
3
W
16
3.5
WSW
14
3
WSW
13
3
WSW
13
2
WSW
12
1.4
WNW
11
1
W
9
1.6
W
9
1.2
WSW
11
0.7
WSW
10
0.8
SW
15
0.9
SW
14
1.8
WSW
12
1.6
SW
12
1.6
SW
12
1.4
WNW
12
1.2
W
12
1.6
WNW
12
Wave Graph
Metric surfscale
Energy kJ
193
290
2598
4112
4757
3198
2470
1158
436
173
436
329
106
273
331
1000
734
628
569
383
718
Wind (km/h)
20
SSW
15
SSW
10
S
15
SSW
5
SE
10
N
15
NNE
15
NNE
15
N
15
N
15
NNE
35
N
50
NNE
50
N
35
N
20
NNW
15
NNE
10
NE
10
NE
10
NNE
5
E
Wind State
cross-on
cross
cross
cross-on
glassy
cross
cross-off
cross-off
cross
cross
cross-off
cross
cross-off
cross
cross
cross-on
cross-off
cross-off
cross-off
cross-off
off
High Tide
9:01PM0.89m
9:16AM1.58m
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
Low Tide
3:16PM0.12m
2:30AM0.19m
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
clear
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
heavy rain
heavy rain
heavy rain
heavy rain
light rain
light rain
rain showers
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:50
7:50
7:50
7:50
7:48
7:48
7:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
5:54
5:55
5:55
5:57
5:58
5:58
5:59
 mm
2
40
17
16
21
5
3
2
Temp °C
18
14
16
17
15
14
14
13
14
15
13
14
14
13
13
13
12
11
11
12
11
Feels °C
15
11
14
14
13
13
11
10
11
12
11
8
6
0
7
7
8
8
9
9
9
  • Map Icons:
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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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