Molhes de Mampituba Surf Break

Lat Long: 29.40° S 49.77° W

Molhes de Mampituba Surf Forecast and Surf Report

Issued: 8 pm 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Molhes de Mampituba sea temperature is
16.2°C
1.2° 

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 30 Aug 2026:

  • Best quality surf: Sunday 6 Sep, 3AM (local time) - 10ft (3.0m), 11s period, S swell with cross-shore winds.
  • Most powerful swell: Sunday 6 Sep, 3AM (local time) - 10ft (3.0m), 11s period, S swell with 2,095 kJ wave energy.
  • Next surfable swell (1★+): Sunday 30 Aug, 12AM (local time) - 3ft (0.9m), 8s 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 Sunday (Aug 30) at 12AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 5s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Molhes de Mampituba in the next 16 days are 3.0m 11s and forecast to arrive on Sunday (Sep 06) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Sep 03) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sun 30th Aug)3ft (0.9m) 8s
Best Surf 3AM (Sun 6th Sep)10ft (3.0m) 11s
Most Powerful 3AM (Sun 6th Sep)10ft (3.0m) 11s

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


The Lowdown

Alright, Rusty here, checkin' in from the surf coast. Let's have a look at what the charts are telling us for the next couple of weeks.

Alright, so the water is runnin' a touch cooler than normal for this time of year, about a degree and a half below average, sittin' around 61° currently. The river mouth at Molhes de Mampituba has been showin' some inconsistent pulse for mid-spring.

Kickin' off, we've got a bit of a slow start. The weekend is lookin' fairly average with smaller, short-period windswell and messy conditions. Saturday the 29th will see some rain and a cross-shore breeze, makin' for poor conditions with only around 3 ft of weak stuff. We’re lookin' at a wait until late August.

The first decent window of opportunity looks to be on Sunday the 30th, early. We’ll see a little bump in size to 4 ft from the ENE, but more importantly, a light offshore breeze from the NNE should clean things up nicely. Expect clean, lined-up surf. The combined swell energy will be moderate (351), so there's some push behind it.

Monday the 31st looks solid size-wise with 7 ft to 8 ft of swell from the ENE, but that comes with a lot of rain and a moderate cross-shore wind. The energy will be pumpin' (914 to 1222), so the ocean will have some punch, but the quality might be thrown off by the wind direction. This is pushin' into the 'only for intrepid souls' territory—too lumpy for a fun paddle.

Now, there are a few standout windows that have me perk in' up. Wednesday morning, September 2nd is interesting: the swell drops a bit to 6 ft from the SE, but a light offshore from the SW makes for nearly perfect, clean conditions. This will see very good surf for intermediate surfers. The energy will be moderate (566).

Moving into the second week, Tuesday morning, September 8th has a real pulse: a 6 ft groundswell from the SSE—that's a long period swell at 13 seconds. Combine that with a glassy, offshore breeze from the NNE, and you get excellent conditions. This is more for experienced surfers as the combined swell energy is over a thousand (1112) and the long-period nature can make paddlin' out easier but the sets push through.

Then Wednesday morning, September 9th offers a similar setup: another solid 5 ft of SSE swell (14-second period) with that same clean offshore breeze. Excellent conditions for experienced surfers. The long-period energy here will mean long, waitin' sets but clean, peel in' walls if you grab one. The combined energy sits at 1027.

Expect a few smaller mornings here and there that might be worth a paddle, like Thursday the 10th (5 ft, clean, offshore breeze) and Saturday the 13th (small 3 ft, offshore flow, but very clean). But the absolute standouts are those early windows in the second week.

For the standouts: It's all about Tuesday 8th and Wednesday 9th September. Both mornings offer a solid 5 ft to 6 ft SSE swell with a long 13-14 second period, combined with pristine offshore winds from the NNE. Just be aware that long-period groundswell like this is known to stand up and break a bit straight at exposed beach/river breaks like Molhes de Mampituba. It will offer much better shape and longer rides with a bit of luck. The crowd is "often" here, so you might have some company, but the quality will be worth the wait. For now, I'm callin' this as the best on offer over the next 16 days.

Stay stoked, keep your eye on the charts, and don't sleep on that Tuesday/Wednesday window.

- Rusty

Short Range Forecast

Heavy rain (total 104mm), heaviest during Sun afternoon. Very mild (max 19°C on Tue morning, min 15°C on Sun afternoon). Winds increasing (light winds from the NNE on Sat night, strong winds from the WSW by Tue afternoon).

Days 5-7 Weather Summary

Some drizzle, heaviest during Tue night. Warm (max 21°C on Fri morning, min 11°C on Wed night). Wind will be generally light.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
1
0
4
1
0
2
3
1
2
2
1
2
0
0
0
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
8
0.9
E
8
0.9
E
8
1.7
E
6
1.9
E
8
1.9
E
8
2.2
E
8
1.6
E
8
1.5
E
8
1.6
SSE
7
1.8
SE
8
1.7
SE
8
1.3
ESE
8
1.1
ESE
9
1.2
ESE
9
1.5
ENE
7
0.9
ENE
8
0.5
SE
10
1
S
6
Wave Graph
Metric surfscale
Energy kJ
115
111
108
239
453
488
675
347
324
276
448
419
241
181
213
218
94
53
59
Wind (km/h)
15
NNW
10
NE
20
E
20
NE
20
NNE
20
NE
10
NNE
10
SW
40
WSW
20
SW
10
WSW
10
SSE
15
N
10
NNE
15
ENE
10
N
10
SSW
25
S
10
SW
Wind State
cross-off
cross
cross-on
cross
cross-off
cross
cross-off
cross
cross-off
cross-off
cross-off
on
cross-off
cross-off
cross
cross-off
cross-on
cross-on
cross
High Tide
1:30AM0.58m
2:13PM0.45m
6:46PM0.35m
2:34PM0.44m
8:00PM0.31m
8:01AM0.31m
2:58PM0.42m
9:06PM0.28m
3:21AM0.54m
3:23PM0.41m
10:05PM0.27m
4:04AM0.48m
3:48PM0.39m
10:57PM0.27m
4:51AM0.40m
4:04PM0.38m
11:44PM0.28m
Low Tide
9:24PM0.21m
9:46AM-0.02m
5:19PM0.33m
10:02PM0.21m
10:32AM0.05m
5:50PM0.25m
10:43PM0.20m
6:33AM0.29m
6:25PM0.18m
6:47AM0.30m
12:20PM0.23m
7:02PM0.11m
7:08AM0.29m
1:28PM0.31m
7:40PM0.08m
7:31AM0.29m
2:54PM0.37m
8:20PM0.07m
mod rain
rain showers
heavy rain
heavy rain
heavy rain
heavy rain
light rain
thunderstorm
light rain
rain showers
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:33
6:33
6:31
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:02
6:02
6:04
6:04
6:05
6:05
 mm
8
3
24
38
11
13
2
1
4
1
Temp °C
17
17
16
16
17
18
18
19
17
16
16
16
14
17
18
17
21
17
15
Feels °C
17
17
14
14
16
17
18
17
10
12
13
14
13
15
16
16
19
14
13
  • 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 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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