Molhes de Mampituba Surf Break

Lat Long: 29.40° S 49.77° W

Molhes de Mampituba Surf Forecast and Surf Report

Issued: 2 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Molhes de Mampituba sea temperature is
18.0° C
0.7° 

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


Molhes de Mampituba surf forecast from 20 Aug 2026:

  • Best quality surf: Monday 24 Aug, 12AM (local time) - 7.5ft (2.3m), 14s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 6AM (local time) - 8ft (2.4m), 16s period, SSE swell with 2,794 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 3PM (local time) - 3ft (0.9m), 6s period with ENE swell.

Best Forecast Surf Conditions for Molhes de Mampituba this week:

The surf forecast for Molhes de Mampituba over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 3PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Molhes de Mampituba in the next 16 days are 2.4m 16s and forecast to arrive on Monday (Aug 24) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Friday (Aug 21) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Thu 20th Aug)3ft (0.9m) 6s
Best Surf12AM (Mon 24th Aug)7.5ft (2.3m) 14s
Most Powerful 6AM (Mon 24th Aug)8ft (2.4m) 16s

Table - best surf conditions forecast for Molhes de Mampituba over the next 16 days.


The Lowdown

Alright, let’s talk about Molhes de Mampituba. This river/jetty spot is exposed to the swell, and it’s in for a bit of a mixed bag over the next 16 days. The water is sitting at 64°, which is pretty normal for the time of year, so no worries there.

The first few days are a bit of a write-off. Thursday the 20th starts cloudy with a 3ft ENE swell and a short, weak 5-second period. The combined energy is only 107, so it’s very weak. Not worth paddling out for. Friday the 21st gets a bit more size, but it’s messy with a 22 mph cross-swell on Friday afternoon. That’s poor.

Saturday the 22nd sees the swell pushing up to 7ft from the S with a 9-second period, but the cross-shore wind is 12 mph, and the combined energy jumps to 1094, so there’s moderate energy in the water. The surf is marginal, and the conditions are choppy. It’s not great for a paddle.

Now, Sunday the 23rd morning is where it starts to get interesting. The swell is 5ft from the SSE, but the period is a solid 13 seconds – that’s a proper groundswell. The wind is glassy, just 3 mph from the WSW, and the combined energy is 867. The surf is clean and the wave comment says "expect very good surf conditions." This is a standout window. The swell direction (SSE) is a bit off the optimum SE, but the glassy conditions make up for it. However, this is a long period swell at 13 seconds, so at a river/jetty break, it might get a bit straight and walled up. Still, worth a look.

Monday the 24th morning is the best on offer. The swell is 8ft from the SSE with a very long 15-second period. That’s serious groundswell energy, with a combined energy of 2479 – strong. The wind is glassy again from the W at 3 mph. The wave comment says "excellent surf conditions for experienced surfers." This is big, powerful, and clean. But at 8ft, it’s getting into the "too big for beginners" territory, and with that long period, the jetty might be the only place it holds shape. This is a true standout for experienced surfers.

Tuesday the 25th morning still has a good 6ft SSE swell at 13 seconds, with a light cross-off breeze from the NNE. Combined energy is 903, and the surf is clean. Good option if you missed Monday. Wednesday the 26th and Thursday the 27th mornings also have clean, cross-off conditions with 4ft SSE swell at 12-13 seconds, but the energy is weaker. Worth a paddle if you want a quieter session.

After that, the surf drops off. Friday the 28th has a 8ft ENE swell, but with a cross-shore wind and a 9-second period, the combined energy is 1318 but the conditions are marginal. The weekend of the 29th and 30th is small and messy, with 3ft to 4ft swells and poor conditions. The start of September sees a run of poor surf with small, weak swells. There’s a gap of several days with no real recommendations.

Then, on Friday the 4th of September morning, the surf picks up again with a 6ft SSE swell at 9 seconds, but it’s cross-shore. The afternoon of the 4th looks better: 4ft SE swell at 10 seconds with a light cross-off wind from the NNE, and the combined energy is 554. The wave comment says "expect very good surf conditions." That’s a promising, if distant, option.

So, the standout is Monday the 24th morning for the experienced crew, with that big, clean groundswell. Sunday the 23rd morning is also a solid pick. The rest of the window is patchy, but there are a few clean mornings to scratch around.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Thu afternoon. Warm (max 22°C on Thu morning, min 9°C on Sat night). Winds increasing (calm on Thu afternoon, fresh winds from the SW by Fri afternoon).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Tue afternoon, min 9°C on Sun night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
0
0
0
2
1
2
3
1
4
4
2
4
3
1
3
3
1
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
ENE
5
0.9
ENE
6
0.8
ENE
7
0.8
SW
6
1.6
SSW
8
1.7
S
9
2
S
9
1.9
S
9
1.4
S
11
1.6
SSE
13
1.8
SSE
12
2.3
SSE
14
2.3
SSE
15
2.1
SSE
14
1.9
SSE
13
1.7
SSE
13
1.6
SSE
12
1.4
SSE
12
1.2
SSE
12
1.3
SSE
14
1.3
SSE
13
Wave Graph
Metric surfscale
Energy kJ
37
60
60
40
283
459
664
614
441
860
1009
1998
2479
1748
1249
903
742
522
374
742
553
Wind (km/h)
20
NNE
5
ENE
15
WSW
20
WSW
35
SW
25
SSW
20
SSW
15
S
5
W
5
WSW
15
S
10
WSW
5
W
15
E
10
NNW
10
NNE
20
ENE
10
N
15
NNE
20
NE
15
NNE
Wind State
cross-off
glassy
cross-off
cross-off
cross
cross
cross
cross-on
cross-off
glassy
cross-on
cross-off
glassy
cross-on
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
High Tide
11:33AM0.40m
4:27PM0.43m
11:44PM0.22m
5:45AM0.35m
12:10PM0.45m
00:03AM0.24m
12:39PM0.49m
00:11AM0.27m
1:06PM0.52m
00:05AM0.31m
1:33PM0.54m
11:46PM0.36m
2:01PM0.55m
11:49PM0.41m
2:28PM0.54m
00:06AM0.47m
Low Tide
1:44PM0.37m
8:57PM0.16m
8:14AM0.30m
3:23PM0.39m
9:26PM0.20m
3:01AM0.19m
9:44PM0.24m
4:28AM0.15m
9:03PM0.29m
5:38AM0.09m
7:12PM0.28m
6:27AM0.03m
7:27PM0.26m
7:08AM-0.02m
7:50PM0.24m
cloud
thunderstorm
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:46
6:45
6:43
6:43
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:58
5:59
5:59
6:00
6:00
6:00
 mm
3
1
Temp °C
22
20
18
18
17
13
12
14
11
12
14
11
12
12
11
15
16
15
19
20
18
Feels °C
23
22
15
12
10
7
7
9
8
9
9
7
10
9
8
12
13
14
17
18
17
  • 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 Molhes de Mampituba Surf forecast

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

Molhes de Mampituba is 8 km (5 miles) from Torres. If you plan a holiday in Rio Grande Do Sul, look for hotels and other accommodation in Torres. Torres has rooms for a wide range of budgets as well as car hire and transport links.

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