Molhes de Mampituba Surf Break

Lat Long: 29.40° S 49.77° W

Molhes de Mampituba Surf Forecast and Surf Report

Issued: 8 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Molhes de Mampituba sea temperature is
17.5°C
0.1° 

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 31 Aug 2026:

  • Best quality surf: Monday 31 Aug, 9PM (local time) - 7.5ft (2.3m), 8s period, E swell with cross-offshore winds.
  • Most powerful swell: Sunday 6 Sep, 12PM (local time) - 8ft (2.5m), 11s period, S swell with 1,612 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 3AM (local time) - 5ft (1.5m), 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 Monday (Aug 31) at 3AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 1.2m and 8s. Another secondary swell of 0.6m and 6s is also forecast. 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 2.5m 11s and forecast to arrive on Sunday (Sep 06) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Sunday (Sep 06) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 31st Aug)5ft (1.5m) 8s
Best Surf 9PM (Mon 31st Aug)7.5ft (2.3m) 8s
Most Powerful12PM (Sun 6th Sep)8ft (2.5m) 11s

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


The Lowdown

Alright, let’s break this down in feet and knots. The forecast runs 16 days, but the first few days are a write-off – Monday is wet and messy. The real action kicks off Tuesday morning.

The only spot in the game is Molhes de Mampituba, a river/jetty break that’s fairly consistent, exposed to the south-east. Water temp is about average for the time of year.

Tuesday morning (1st September) – clean 5ft swell from the ESE at 8 seconds, with a light offshore WSW breeze at 3 knots. The combined energy is moderate at 350. It’s clean and surfable.

Wednesday morning (2nd September) is the first real standout. Clean again, 5ft from the ESE, period 9 seconds, with a WSW breeze at 6 knots, cross-off. The combined energy is 474 – moderate but punchy. The jetty will be offering nice lines.

Thursday morning (3rd September) – 4ft SE swell at 10 seconds, glassy NNW breeze at 3 knots. Clean, but the energy is dropping to 321. Good for a longboard.

Friday and Saturday (4th and 5th September) are messy. The wind turns onshore, the swell gets short and weak, energy drops to 143 and 159. Poor conditions.

Sunday (6th September) – swell jumps to 7ft from the south at 11 seconds, but the wind is a strong 15-18 knots cross-shore. The combined energy is 1030 – powerful, but lumpy. Expert territory.

Monday morning (7th September) is the absolute standout. 7ft SSE swell at 12 seconds – that’s a long-period groundswell. The wind is glassy, dead calm. The combined energy is a massive 1259. This is excellent surf for experienced surfers – clean, powerful, long lines. The sets will be well-spaced, making paddling out easier. This is the session to circle.

Tuesday morning (8th September) – 5ft SSE swell at 10 seconds, clean cross-off NNE breeze at 9 knots. Combined energy 519. Good follow-up.

Wednesday morning (9th September) – 7ft east swell at 8 seconds, clean cross-off NNE breeze at 9 knots. Combined energy 1048 – strong. The short period means steeper, punchier waves, but the jetty will line them up. Another one for experienced surfers.

The second week (from 10th September) is more mixed. Swell drops to 5 – 6ft, wind becomes more onshore. The standout in the second week is Saturday morning (12th September) – glassy, 5ft E swell at 11 seconds, combined energy 514. Dead calm wind. Clean, fun, but quiet.

Crowds at Molhes de Mampituba are often a factor, especially when conditions are good.

Bottom line: The first week is the play. The absolute pick is Monday morning (7th September) – 7ft, glassy, long period, massive energy. Wednesday morning (9th September) is also a cracker. The rest of the window is mixed, but there are still clean mornings for the patient surfer.

Stay safe, and don’t sleep on that Monday.

Rusty.

Short Range Forecast

Heavy rain (total 77mm), heaviest during Mon afternoon. Very mild (max 17°C on Mon morning, min 14°C on Tue night). Mainly strong winds.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Thu morning, min 10°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the SSW by Fri afternoon).

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
2
2
2
2
2
1
2
2
1
2
0
0
0
1
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)
1.2
E
8
1.5
ENE
8
1.6
E
7
2.2
E
8
1.6
ESE
8
2
ESE
8
1.7
ESE
8
1.5
ESE
9
1.4
ESE
9
1.5
ESE
10
1.1
SE
10
0.9
ESE
10
1
ENE
8
0.5
SE
10
1.1
S
5
1.2
S
7
1.5
S
8
1.4
S
12
2.3
S
9
Wave Graph
Metric surfscale
Energy kJ
187
280
260
623
350
541
413
360
313
419
243
192
122
51
69
139
331
517
828
Wind (km/h)
20
NNE
15
NE
20
ENE
5
SW
5
WSW
25
SW
15
WSW
10
WSW
10
E
15
N
5
N
10
ENE
10
WSW
25
SSW
30
SSW
25
SSW
15
SW
15
S
10
NW
Wind State
cross-off
cross
cross-on
cross
cross-off
cross
cross-off
cross-off
cross-on
cross-off
cross-off
cross-on
cross-off
cross-on
cross-on
cross
cross
cross-on
off
High Tide
2:05AM0.59m
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
5:50AM0.31m
12:08PM0.63m
00:25AM0.29m
Low Tide
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
7:48AM0.27m
9:01PM0.10m
heavy rain
mod rain
heavy rain
mod rain
mod rain
rain showers
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
6:33
6:31
6:31
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:02
6:02
6:04
6:04
6:05
6:05
6:06
 mm
12
9
35
9
6
6
Temp °C
16
17
17
17
17
16
16
16
16
14
19
19
18
14
13
12
12
14
12
Feels °C
15
17
16
18
18
13
14
15
14
12
18
18
18
10
7
6
8
10
9
  • 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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