Matanzas Surf Break

Lat Long: 33.96° S 71.89° W

Matanzas Surf Forecast and Surf Report

Issued: 1 pm 31 Jul 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 31 Jul 2026:

  • Best quality surf: Sunday 2 Aug, 2PM (local time) - 8ft (2.5m), 12s period, W swell with cross-offshore winds.
  • Most powerful swell: Thursday 6 Aug, 2AM (local time) - 7.5ft (2.3m), 14s period, WSW swell with 2,197 kJ wave energy.
  • Next surfable swell (1★+): Saturday 1 Aug, 2AM (local time) - 4ft (1.2m), 10s 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 Saturday (Aug 01) at 2AM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 1.1m and 9s. 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 2.3m 14s and forecast to arrive on Thursday (Aug 06) 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 1.2m 8s period and expected on Friday (Jul 31) at 8PM.

Wave TypeTime (-04) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 1st Aug)4ft (1.2m) 10s
Best Surf 2PM (Sun 2nd Aug)8ft (2.5m) 12s
Most Powerful 2AM (Thu 6th Aug)7.5ft (2.3m) 14s

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


The Lowdown

Alright, folks, Rusty here again. Let’s break down what’s happening at Matanzas in feet and miles per hour.

We’ve got a 16-day window, and it’s a bit of a slow burner. The first few days are a mixed bag.

The first look is on Friday, July 31st. We’ve got a 5ft swell from the WNW, but a fresh 19 mph wind from the NNE is gonna make it a battle. The combined energy is moderate (602), but it’s not a day to get excited about.

Moving into Saturday, August 1st, and Sunday, August 2nd, the swell builds. Saturday morning has 5ft from the SW with a 12-second period, and the energy is picking up (916). The wind is a gentle 9 mph from the NNE, keeping it clean. By Sunday morning, we’re looking at a solid 10ft from the W, which is a big one. The energy is strong (2000), and with a 9 mph NE wind, it’s still cross-off. Sunday afternoon drops to 8ft with a 6 mph N wind, but it’s a cross-shore. This is for the experienced crew only.

Now, the standout window. Monday, August 3rd is where it starts to shine. The morning session is a gem: 7ft from the W with an 11-second period, and the wind is a light 3 mph from the SE, making for clean, cross-off conditions. The wave energy is moderate (1083), and the water temp is normal at 56°. This is a top pick for the near future. The reef setup at Matanzas loves a long-period swell like this, giving you more power and longer waits between sets.

We’ve got a bit of a lull, but then Wednesday, August 5th is another standout. The morning is glassy—wind is 3 mph from the WNW, dead calm, and the swell is 5ft from the WSW with a 12-second period. The afternoon goes up to 6ft with a 15-second period, which is a very long groundswell, and the wind is a gentle 9 mph from the NNE, keeping it clean. The energy is strong (1564). This is the pick of the whole period. The longer period will make it a bit tricky at the beach breaks, but for a reef like Matanzas, it’s going to be firing.

From Thursday, August 6th, through to the end of the second week, the surf gets more inconsistent and the wind turns more cross-shore or cross-onshore. There’s a few moments of interest, like Thursday, August 13th morning, which is glassy with a 5ft swell from the SW, but the energy is lower (578) and the swell period is short (9 seconds). It’s clean, but not the power we saw earlier. The rest of the time you’re looking at lumpy cross-chop and choppy conditions, especially from the 7th to the 12th. The combined energy drops off, and the wind is mostly fresh to moderate, making it more of a kite session than a paddling one.

The second week’s best is definitely Friday, August 14th morning. 4ft from the WSW, 14-second period, and a light 6 mph NNE wind keeping it cross-off and clean. The energy is moderate (643). It’s a promising but less certain call this far out, so keep an eye on it.

Overall, the best days are hands down Monday, August 3rd and Wednesday, August 5th. They’ve got the biggest, cleanest swell with the best winds. The rest of the time, you’ll be fighting the wind or waiting for a window. Matanzas is a consistent reef, so it tends not to stay poor for long, but this forecast has a few hungry days.

Rusty, signing off.

Short Range Forecast

Moderate rain (total 16mm), heaviest on Sun morning. Very mild (max 16°C on Mon morning, min 12°C on Fri night). Winds decreasing (fresh winds from the NNE on Fri afternoon, light winds from the NE by Sun night).

Days 5-7 Weather Summary

Moderate rain (total 15mm), heaviest on Wed night. Very mild (max 17°C on Mon afternoon, min 10°C on Wed night). Wind will be generally light.

Fri
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
PM
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
3
1
3
3
4
4
3
3
3
2
3
4
4
2
2
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)
1.4
WNW
9
1.2
W
10
1.4
SW
12
1.6
SW
12
2.3
W
12
3
W
11
2.5
W
12
2.3
W
11
2
W
11
1.9
WSW
11
2.1
WSW
12
2
WSW
12
1.9
WSW
12
1.7
WSW
12
1.6
WSW
12
1.9
WSW
15
2.3
WSW
14
2.2
WSW
13
2
WSW
13
1.7
WSW
12
Wave Graph
Metric surfscale
Energy kJ
307
262
590
748
1530
1904
1825
1300
1006
944
1220
1216
1071
770
713
1559
2197
1609
1306
800
Wind (km/h)
30
NNE
15
NE
15
NNE
15
N
25
N
15
NE
10
N
10
NE
5
SE
10
SSW
10
SSW
15
S
20
SSW
10
SSE
5
WNW
15
NNE
20
S
15
S
25
SSW
15
S
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross
cross-off
cross-off
cross
cross
cross
cross
cross-off
glassy
cross-off
cross
cross
cross
cross
High Tide
00:00AM0.99m
12:02PM1.38m
00:33AM1.02m
12:34PM1.31m
1:08AM1.05m
1:08PM1.21m
1:48AM1.08m
1:46PM1.10m
2:34AM1.11m
2:34PM0.97m
3:31AM1.13m
3:39PM0.85m
4:42AM1.17m
Low Tide
6:08PM0.10m
5:36AM0.21m
6:36PM0.12m
6:13AM0.24m
7:04PM0.15m
6:54AM0.29m
7:33PM0.19m
7:43AM0.35m
8:06PM0.24m
8:44AM0.40m
8:47PM0.29m
10:06AM0.44m
9:42PM0.35m
thunderstorm
clear
cloud
cloud
light rain
mod rain
cloud
light rain
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:39
7:39
7:37
7:37
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:07
6:08
6:09
6:09
6:10
 mm
4
4
6
2
15
Temp °C
14
13
14
14
14
13
15
15
16
17
15
14
16
15
16
16
14
11
13
12
Feels °C
9
9
11
11
10
10
14
14
15
16
13
12
13
13
15
14
11
7
9
8
  • 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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