Mystos Surf Break

Lat Long: 28.38° S 48.74° W

Mystos Surf Forecast and Surf Report

Issued: 8 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mystos sea temperature is
19.7° C
1.2° 

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


Mystos surf forecast from 5 Aug 2026:

  • Best quality surf: Saturday 8 Aug, 12AM (local time) - 8ft (2.4m), 12s period, S swell with glassy winds.
  • Most powerful swell: Saturday 8 Aug, 12AM (local time) - 8ft (2.4m), 12s period, S swell with 1,777 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 6PM (local time) - 2.5ft (0.7m), 10s period with SSE swell.

Best Forecast Surf Conditions for Mystos this week:

The surf forecast for Mystos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 05) at 6PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.6m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mystos in the next 16 days are 2.4m 12s and forecast to arrive on Saturday (Aug 08) at 12AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Thursday (Aug 06) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Wed 5th Aug)2.5ft (0.7m) 10s
Best Surf12AM (Sat 8th Aug)8ft (2.4m) 12s
Most Powerful12AM (Sat 8th Aug)8ft (2.4m) 12s

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


The Lowdown

Alright, let’s get into it.

The next couple of days are pretty uninspiring, to be honest. We’ve got a bit of swell in the water, but it’s weak and the winds aren't doing us any favors. Wednesday and Thursday are looking pretty flat and ordinary, with surfable but very unremarkable waves. The energy is low, around 158, and the water is a touch warmer than usual for this time of year at 68°, which is nice, but it doesn’t make up for the lack of push. It’s not until Saturday that we see things start to move, but it’s messy and the wind is going to chop it right up.

The real window starts to open up on Monday, the 10th. That southeast swell starts to fill in with a longer period, and the wind swings offshore. It’s not massive, but it’s clean and has some power to it. Tuesday morning looks even better, with a bit more size and continued clean conditions. This is where things start to get interesting.

Then, we get to the standout. Next Tuesday the 18th, the afternoon is looking seriously good. We’ve got 8ft of northeast windswell, but the wind is dead calm, absolutely glassy. The energy jumps to 1640, which is strong, and the conditions are described as excellent for experienced surfers. This is the pick of the entire forecast. It’s going to be big and powerful, so it’s not for the faint of heart.

The Wednesday morning after that also looks fantastic, with solid 8ft waves and light offshore winds. That’s another one for the experienced crew. The swell direction is from the ENE, which is a bit off from the optimum SE direction for Mystos, but with that size and those clean winds, it should still offer some proper waves. It might be a bit too big and straight for the beginners, but for the rest of us, it's a go.

Before that, the week leading up to it is a bit of a mixed bag. There’s a lot of average, poor, and marginal days. The 15th has some serious size, over 8ft, but the wind is going to be cross and messy, making it a bit of a washing machine. Probably more interesting for the kitesurfers than us paddle surfers. The 17th has a glimmer of hope with some glassy conditions, but it’s short-period and lacks that punch.

So, to sum it up: the next few days are for cleaning your board and checking the wax. The beginning of next week has some decent clean waves. But the real standout is Tuesday the 18th afternoon, and Wednesday the 19th morning. Those are the sessions to circle on the calendar. They’re a bit far out, so keep an eye on it, but the forecast is looking promising.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Wed afternoon. Warm (max 24°C on Thu night, min 13°C on Fri night). Winds decreasing (fresh winds from the NW on Thu night, calm by Fri night).

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Sat afternoon. Very mild (max 18°C on Sat morning, min 11°C on Sun night). Wind will be generally light.

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
1
0
2
0
0
4
3
2
0
0
0
3
3
2
2
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSE
10
0.7
SSE
10
0.7
SSE
9
0.5
SSE
9
0.6
ENE
8
1.1
NE
8
0.7
ENE
8
1.6
S
8
2.4
S
12
2.1
SSE
14
2
SSE
13
1.6
SSE
12
1.7
S
7
1.4
S
8
1.6
SSE
11
1.6
S
12
1.4
SSE
13
2.1
S
12
1.8
SSE
12
2
SSE
12
1.8
SSE
12
Wave Graph
Metric surfscale
Energy kJ
116
86
76
46
44
141
65
331
1777
1541
1299
730
286
223
622
786
669
1194
897
1164
872
Wind (km/h)
5
WSW
5
SW
10
N
5
N
10
ENE
10
N
25
SSW
30
S
0
ENE
25
NNE
25
NNE
15
SSW
20
SSW
15
S
10
WSW
15
SW
15
SW
15
SW
15
WSW
10
S
5
W
Wind State
glassy
glassy
cross-off
glassy
cross
cross-off
cross
cross-on
glassy
cross-off
cross-off
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross
cross-off
cross-on
cross-off
High Tide
10:12AM0.42m
5:33PM0.42m
11:16PM0.36m
6:29AM0.47m
5:59PM0.36m
00:05AM0.37m
12:26PM0.62m
00:44AM0.37m
1:15PM0.70m
1:14AM0.38m
2:01PM0.76m
1:28AM0.39m
2:46PM0.77m
00:25AM0.43m
3:29PM0.74m
00:26AM0.50m
Low Tide
9:06AM0.41m
2:05PM0.28m
8:49PM0.32m
8:31AM0.44m
3:42PM0.33m
9:06PM0.29m
3:34AM0.24m
9:24PM0.28m
4:49AM0.17m
9:12PM0.29m
5:53AM0.09m
7:44PM0.29m
6:46AM0.01m
8:08PM0.31m
7:33AM-0.05m
8:34PM0.33m
cloud
light rain
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
rain showers
part cloud
rain showers
part cloud
light rain
light rain
cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
6:52
6:52
6:52
6:50
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:46
5:47
5:47
5:49
5:49
5:50
 mm
5
2
1
1
1
Temp °C
20
19
18
22
21
24
18
16
13
18
18
18
14
13
12
11
13
14
13
15
14
Feels °C
21
21
19
22
22
20
14
11
10
14
15
17
10
10
10
8
9
9
10
12
12
  • Map Icons:
  • Break
  • 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 Mystos Surf forecast

The above surf forecast table for Mystos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mystos can be found by selecting the local surf guide option on the grey menu. Our Mystos 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 (Mystos) 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 Mystos 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.

Mystos is 12 km (7 miles) from Laguna. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Laguna. Laguna has rooms for a wide range of budgets as well as car hire and transport links.

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