Molhes de Mampituba Surf Break

Lat Long: 29.40° S 49.77° W

Molhes de Mampituba Surf Forecast and Surf Report

Issued: 2 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Molhes de Mampituba sea temperature is
17.3°C
0.2° 

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 2 Sep 2026:

  • Best quality surf: Monday 7 Sep, 3AM (local time) - 7ft (2.2m), 8s period, S swell with cross-offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 9PM (local time) - 5.5ft (1.7m), 11s period, SE swell with 677 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 9AM (local time) - 6ft (1.8m), 10s period with SE 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 Wednesday (Sep 02) at 9AM. The primary swell is predicted to be 1.8m and 10s period with a secondary swell of 0.3m 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 1.7m 11s and forecast to arrive on Wednesday (Sep 02) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Sep 03) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Wed 2nd Sep)6ft (1.8m) 10s
Best Surf 3AM (Mon 7th Sep)7ft (2.2m) 8s
Most Powerful 9PM (Wed 2nd Sep)5.5ft (1.7m) 11s

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


The Lowdown

Alright folks, Rusty here. Let's look at whats on the menu for Molhes de Mampituba over the next couple of weeks. Theres a bit of a slow start to get through, but theres some promising windows coming our way for this river/jetty setup.

The Overview

Alright, theres no surf on offer right this second but come Wednesday morning, September 2, theres a little pulse showing up. So a short wait. Overall, the river mouth itself is *fairly consistent* for the area, looking at that SE swell direction that she loves. The first week is a mixed bag of good and forgettable, but the second half of the forecast has some real potential, even if its a bit further out.

Wednesday, September 2 – A Clean Window

The standout for the start of the period is Wednesday the 2nd. Early, the wind's glassy out of the W at 3 mph, making it feel like a morning session you dream about. We've got a solid 5.9ft of SE swell, with a period of 10 seconds producing moderate wave energy (573). The water temp is 63.1°, which feels about average for this time of year, nothing weird going on there. This is the call for the early birds – expect very good surf.

Later that day the wind swings E and goes cross-on at 6 mph. Conditions will get a little bumpy, so the clean morning is the window. This swell means its fine for intermediate skill levels.

Thursday, September 3 – A Smaller Clean Repeat

Thursday the 3rd also has a glassy morning with NW winds at 3 mph, bringing a little smaller 4.6ft of swell from the SE. The period stretches to 11 seconds, a little longer and more lined up. The energy is moderate (472). Conditions will be clean and fun again, but the swell is down a notch. Afternoon goes side-on again with light ENE, so its back to the morning for the best of it.

Friday, September 4 to Sunday, September 6 – A Poor Run

Theres a blanket of poor conditions from Friday. Swell drops right off to under 3 feet, and the wind is cross-on or cross-shore from the S and SW, blowing 9 to 15 mph through the weekend. Energy figures get low (105 to 343). Nothing surfable worth paddling for here guys.

Monday, September 7 – Still Uninspiring

Monday sees the swell pick back up to 5.2ft from the SSE with 9 seconds and moderate energy (382 to 463), but the wind is still messy from the S and SW. The morning has a cross-shore chop and the afternoon is cross-on. Marginal at best.

Tuesday, September 8 – A Clean-ish Return

Tuesday the 8th shows some relief. On the morning, we get a light cross-offshore breeze from the NNE at 6 mph. The swell is a smaller 3.9ft from the SSE at 10 seconds with moderate energy (336). It's clean, but not pumping. A solid little session if you are keen for a paddle.

Wednesday, September 9 – A Solid Pulse

Now this is where it gets interesting. On Wednesday morning the 9th, theres a jump in swell size to 6.9ft from the NE, with a short period of 8 seconds. The wind is cross-offshore out of the NNE at 9 mph. The energy is moderate to strong (798) and the report is expecting very good surf. This size is pushing into bigger territory, maybe a bit much for beginners, but for the intermediates and up, with clean conditions, this is a ripper morning. The afternoon blows up with 18 mph cross-shore winds, so the window is tight on the morning.

Thursday, September 10 – Another Glassy Window

After a choppy and rainy morning Thursday, the afternoon of the 10th glass's off again with NW winds at 3 mph. We got a 5.2ft swell from the E at 9 seconds and moderate energy (460). Good surf expected in the glass, but again the morning is a write-off.

Friday, September 11 to Sunday, September 13 – Mixed Bag

The middle of the week looks inconsistent. Some marginal conditions on Friday with light cross-onshore winds. A clean and glassy morning on Saturday the 12th with a 3.6ft E swell, but its short. Sunday gets blown out again.

Monday, September 14 – Another Star in the Forecast

Now this is the long-range standout. Monday the 14th is shaping up to be a beauty. Early on, we have glassy conditions with a light SW wind at 3 mph. The swell picks up to 5.2ft from the ENE with a short period of 8 seconds. The combined energy is strong (790). This is a classic river/jetty setup with a clean face. This is the one to circle on the calendar, but keep in mind its over a week away.

Short Range Forecast

Mostly dry. Warm (max 22°C on Thu afternoon, min 12°C on Wed night). Winds decreasing (fresh winds from the SW on Thu night, calm by Fri night).

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Mon afternoon. Very mild (max 14°C on Sat morning, min 10°C on Sun night). Winds decreasing (fresh winds from the SSW on Sun afternoon, light winds from the ESE by Mon afternoon).

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
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
1
0
0
0
1
0
0
2
1
0
2
0
1
1
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
SE
10
1.7
SE
10
1.7
ESE
11
1.4
SE
11
1.1
SE
11
0.8
SE
11
0.6
SE
10
0.5
SE
10
0.9
S
8
1.1
S
8
0.9
S
8
1.2
S
8
1
S
8
1.1
S
8
1.5
S
8
1.6
SSE
9
1.6
SSE
9
1.4
SSE
10
1.2
SSE
10
1.1
SSE
9
1.9
ENE
7
Wave Graph
Metric surfscale
Energy kJ
561
592
634
431
303
140
87
51
113
161
103
169
118
135
277
371
452
363
264
193
304
Wind (km/h)
5
W
10
E
15
N
5
NW
10
ENE
30
SSW
15
SSW
15
S
0
SSW
15
S
20
S
10
WSW
15
SW
25
SSW
15
WSW
15
SW
10
S
10
NE
10
NNE
25
NE
20
NNE
Wind State
glassy
cross-on
cross-off
glassy
cross-on
cross
cross-on
cross-on
glassy
cross-on
cross-on
cross-off
cross
cross-on
cross-off
cross
cross-on
cross
cross-off
cross
cross-off
High Tide
9:15AM0.39m
3:23PM0.41m
10:05PM0.27m
4:04AM0.48m
3:48PM0.39m
10:57PM0.27m
4:51AM0.40m
4:04PM0.38m
11:44PM0.28m
5:50AM0.31m
12:08PM0.63m
00:25AM0.29m
12:59PM0.67m
1:02AM0.30m
1:49PM0.67m
1:34AM0.30m
2:39PM0.64m
9:36PM0.36m
Low Tide
12:20PM0.23m
7:02PM0.11m
7:08AM0.29m
1:28PM0.31m
7:40PM0.08m
7:31AM0.29m
2:54PM0.37m
8:20PM0.07m
7:48AM0.27m
9:01PM0.10m
3:49AM0.12m
9:48PM0.16m
5:03AM0.06m
10:49PM0.24m
6:03AM-0.01m
7:13PM0.32m
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
clear
clear
light rain
light rain
light rain
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:31
6:31
6:28
6:28
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:04
6:05
6:05
6:06
6:06
6:07
6:07
 mm
1
3
3
Temp °C
16
16
14
21
22
19
14
14
14
14
14
13
14
14
12
12
11
12
15
15
15
Feels °C
15
14
12
20
21
20
11
12
13
11
9
9
9
8
7
10
9
9
12
10
11
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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 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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