Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 7 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Matanzas sea temperature is
13.5° C
0.5° 

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


Matanzas surf forecast from 10 Aug 2026:

  • Best quality surf: Monday 10 Aug, 5AM (local time) - 7.5ft (2.3m), 13s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 10 Aug, 2AM (local time) - 8ft (2.5m), 14s period, SW swell with 2,205 kJ wave energy.
  • Next surfable swell (1★+): Monday 10 Aug, 5AM (local time) - 7.5ft (2.3m), 13s period with SW 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 (Aug 10) at 5AM. The primary swell is predicted to be 2.3m and 13s period. 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 2.5m 14s and forecast to arrive on Monday (Aug 10) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Saturday (Aug 15) at 5PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Mon 10th Aug)7.5ft (2.3m) 13s
Best Surf 5AM (Mon 10th Aug)7.5ft (2.3m) 13s
Most Powerful 2AM (Mon 10th Aug)8ft (2.5m) 14s

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


The Lowdown

Alright, Rusty here. Let’s look at what’s shaping up for Matanzas.

Overall, the first week is a bit of a mixed bag, with some clean windows but nothing to get too excited about until we hit Thursday morning the 13th. That’s the first real standout—a little pocket of glassy, perfect conditions. The swell is rolling in from the WSW, around 4ft, with a period of 16 seconds. That’s proper groundswell, long lines, and the combined wave energy is a solid 689 (moderate energy). That kind of period loves a reef setup like Matanzas, so expect some good shape, but those long gaps between sets will make you wait. The wind is dead calm—glassy—so the surface is gonna be like a mirror. This is the pick of the first week.

Saturday morning the 15th, you get another good one. Swell picks up to about 7ft from the WNW, 11-second period, and the wind is a light cross-offshore breeze, keeping it clean. The combined energy jumps up to 1228 (strong wave energy). That’s got some punch, but it's still in the intermediate-friendly zone, good for experienced surfers. This morning session is worth dragging yourself out of bed for.

Now, for the second week. Sunday the 22nd in the morning, the swell cranks up to a solid 12ft from the WSW, 13-second period. The combined energy is massive—3605 (very strong wave energy). That’s expert-only territory. The wind is a fresh cross-shore, so it’s going to be lumpy and gnarly. Not for the faint-hearted or beginners.

But if you can hold out, Monday the 23rd morning is where it all comes together. Swell is still a solid 10ft from the WSW, 12-second period, and the wind turns cross-offshore with a gentle breeze, cleaning the face right up. The energy is still huge at 2657. This is a big-wave day for experienced surfers only, but if you’ve got the skill and the nerve, this is the absolute highlight of the whole outlook. It won’t be crazy crowded—crowds are only "sometimes" a thing here, so you might have a bit more room to breathe on those big sets.

Water temp is about average for this time of year, so no wetsuit hassles.

After that, the swell backs off through the 24th and really drops by the 25th. There’s a bit of a gap with no real recommendations after the 23rd.

So, bottom line: first week, Thursday morning the 13th and Saturday morning the 15th are your best bets. Second week, if you’re experienced, Sunday the 22nd is big and messy, but Monday the 23rd morning is the gold mine.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 13°C on Wed afternoon, min 7°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Thu afternoon. Very mild (max 15°C on Sat afternoon, min 11°C on Wed night). Wind will be generally light.

Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
1
3
0
0
0
1
1
3
3
1
2
2
1
3
4
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)
2.5
SW
14
2.1
SW
13
1.8
SW
12
1.6
SW
12
1.1
SW
12
1.1
SW
13
0.7
SW
11
0.5
WSW
19
0.9
WSW
18
1.1
WSW
16
1.2
WSW
16
1.2
WSW
15
1
WSW
14
0.8
WSW
13
1.3
WNW
9
1.5
W
13
2
WNW
11
1.6
WNW
10
1
WSW
14
Wave Graph
Metric surfscale
Energy kJ
2205
1323
1025
689
344
424
125
203
438
590
654
573
389
229
237
799
904
530
419
Wind (km/h)
15
S
15
SSW
15
SSW
10
S
15
SSW
15
SSW
20
S
15
S
15
SSW
10
E
0
ENE
20
N
10
NE
15
NNE
10
N
10
NNE
10
NNE
15
N
5
NNW
Wind State
cross
cross
cross-on
cross-off
cross
cross
cross
cross
cross
off
glassy
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
High Tide
8:04PM0.82m
8:16AM1.46m
9:00PM0.90m
9:09AM1.56m
9:48PM0.98m
9:56AM1.62m
10:31PM1.06m
10:40AM1.63m
11:12PM1.13m
11:22AM1.57m
11:53PM1.18m
12:03PM1.46m
00:33AM1.20m
Low Tide
1:28AM0.28m
3:12PM0.10m
2:28AM0.19m
3:57PM0.01m
3:20AM0.11m
4:38PM-0.05m
4:09AM0.06m
5:16PM-0.06m
4:56AM0.04m
5:53PM-0.04m
5:42AM0.07m
6:27PM0.01m
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
cloud
clear
clear
cloud
light rain
rain showers
cloud
part cloud
light rain
cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:30
7:28
7:28
7:26
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:13
6:14
6:15
6:15
6:15
6:16
6:16
 mm
3
2
1
5
Temp °C
9
10
11
10
11
12
10
10
13
12
14
14
12
14
14
13
14
15
13
Feels °C
3
6
6
6
7
8
5
6
9
10
14
11
8
12
12
11
12
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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