Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 8 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Matanzas sea temperature is
13.3°C
0.4° 

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


Matanzas surf forecast from 13 Sep 2026:

  • Best quality surf: Monday 14 Sep, 3AM (local time) - 4ft (1.2m), 15s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 14 Sep, 12PM (local time) - 4.5ft (1.4m), 14s period, WSW swell with 767 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 3AM (local time) - 4ft (1.2m), 15s 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 Monday (Sep 14) at 3AM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 1.2m and 8s. 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 1.4m 14s and forecast to arrive on Monday (Sep 14) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 14th Sep)4ft (1.2m) 15s
Best Surf 3AM (Mon 14th Sep)4ft (1.2m) 15s
Most Powerful12PM (Mon 14th Sep)4.5ft (1.4m) 14s

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


The Lowdown

Sunday 13th Morning:
We kick off with a small but sweet little window. Swell is only 0.7m from the WSW with a *really* long period of 18 seconds. That’s a proper groundswell. The wind is a light ESE cross-off, just 5 km/h, so the surface will be glassy clean. The combined energy is moderate (588). This is a classic “paddle out, catch a few, feel the stoke” morning. The long period makes the reef work beautifully, but the size is small enough for everyone.

Sunday 13th Afternoon:
Don’t bother. The wind swings onshore from the SW at 15 km/h and the session gets choppy fast.

Monday 14th:
A bit more size (1.3m) but the wind is messy. Morning is cross-shore, afternoon is a choppy cross-on. Not worth getting excited about.

Tuesday 15th Morning:
Another good call. Clean conditions with a SSE cross-off at 15 km/h. Swell is a waist-high 1.2m from the WSW with a 13-second period. The wave energy is moderate (578). It’s clean and fun, but still just a warm-up for what’s coming.

Wednesday 16th Morning:
Tiny little 0.6m waves, but the wind is dead (N 5 km/h, glassy). The energy is weak (183). It’s surfable, but you’ll be fighting for a few dribblers.

Thursday 17th Morning:
Another small, clean morning. 0.5m from the W, but with a 13-second period and light cross-off wind. Light energy (245). Good for a log.

Friday 18th – Saturday 19th:
The wind and swell are fighting each other. The mornings are cleaner but the swell is weak and short-period. Not your ticket.

Sunday 20th Morning:
Glassy, tiny, and weak. A 1.0m glass-off with 10-second period. Just a quiet morning for a beginner.

Monday 21st Morning – THE STANDOUT:
This is *it*. Mark it on your calendar. We’ve got a solid 2.3m swell from the WSW with a 12-second period. The combined energy is strong (1449). This is a proper reef-busting swell. The wind is a 15 km/h SSE cross-off, which will groom the face perfectly. This is *excellent* for experienced surfers. The size is over 2.5m, so this is expert territory. If you’re not solid, sit this one out and watch the show. The crowds could be an issue as it’s a break that sometimes gets busy, but with this quality, it’s worth the lineup.

Monday 21st Afternoon:
Wind cranks onshore to 30 km/h. Forget it.

Tuesday 22nd Morning:
Still decent size at 1.7m from the SW, but the wind is cross-shore at 15 km/h and the period drops to 10 seconds. The energy is moderate (610). It’s surfable, but it’s a step down from the morning before.

Wednesday 23rd – Weak and short-period:
The swell drops to under a meter and the period plummets to 8 seconds. The energy is weak. Not worth a paddle.

Thursday 24th – Friday 25th Morning:
Friday morning is a standout within a weak stretch. A clean 1.5m swell from the W, with a 10-second period, and a glassy ESE breeze. The energy is moderate (704). This is a good solid day for all levels, with clean conditions. Not the size of Monday 21st, but better for the average surfer.

Saturday 26th Morning – Sunday 27th Afternoon:
A pulse of 1.8m swell rolls in on Saturday, but the wind is messy. Sunday afternoon gets a clean offshore wind from the E at 10 km/h, with a 1.4m swell. That’s a solid fun session to close out the window.

Monday 28th onwards:
The end of the forecast is messy, with rain and strong winds. Avoid it.

Short Range Forecast

Mostly dry. Very mild (max 19°C on Tue afternoon, min 11°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Thu morning, min 11°C on Fri night). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
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
1
2
2
0
3
3
0
1
1
0
1
2
0
1
1
1
1
2
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
WSW
18
0.9
WSW
17
1.2
WSW
16
1.3
WSW
14
1.4
WSW
14
1.3
WSW
13
1.2
WSW
13
1.1
WSW
12
0.9
WSW
12
0.6
WSW
12
0.7
WSW
12
0.9
SW
7
0.6
WSW
11
0.9
WSW
13
1
WSW
12
1
WSW
11
1.1
WSW
11
1.1
WSW
11
1.1
WSW
10
1.3
WSW
10
1.3
WSW
10
Wave Graph
Metric surfscale
Energy kJ
280
428
715
687
704
534
476
347
243
96
123
79
92
294
298
254
265
256
255
361
320
Wind (km/h)
5
ESE
15
SW
15
S
10
S
20
SSW
15
SSE
15
SSE
20
SSW
10
S
5
N
10
N
5
SE
5
SE
10
WSW
10
SSW
5
SSW
10
WSW
10
S
5
SE
15
SW
10
S
Wind State
cross-off
cross-on
cross
cross
cross-on
cross-off
cross-off
cross-on
cross
glassy
cross
glassy
cross-off
cross-on
cross
cross-on
on
cross
cross-off
cross-on
cross
High Tide
12:34PM1.30m
00:55AM1.33m
1:10PM1.17m
1:31AM1.31m
1:47PM1.03m
2:09AM1.26m
2:27PM0.90m
2:51AM1.18m
3:15PM0.78m
3:46AM1.11m
4:31PM0.69m
5:04AM1.05m
6:42PM0.67m
Low Tide
6:41PM0.08m
7:09AM0.13m
7:11PM0.16m
7:53AM0.21m
7:40PM0.26m
8:42AM0.31m
8:10PM0.35m
9:43AM0.40m
8:45PM0.44m
11:10AM0.46m
9:39PM0.52m
12:58PM0.45m
11:25PM0.56m
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:50
7:48
7:47
7:46
7:43
7:43
7:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:37
7:37
7:38
7:39
7:39
7:40
 mm
Temp °C
15
15
12
16
18
15
18
19
15
16
16
13
17
17
14
15
15
13
14
15
14
Feels °C
13
11
8
13
14
11
16
15
12
15
15
13
16
16
12
14
14
10
11
12
10
  • 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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