Molhes de Mampituba Surf Break

Lat Long: 29.40° S 49.77° W

Molhes de Mampituba Surf Forecast and Surf Report

Issued: 8 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Molhes de Mampituba sea temperature is
16.6° C
0.6° 

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 18 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 12AM (local time) - 7ft (2.2m), 10s period, S swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 6AM (local time) - 7.5ft (2.3m), 14s period, SSE swell with 2,027 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 6AM (local time) - 4ft (1.2m), 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 Tuesday (Aug 18) at 6AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.2m and 10s. 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 2.3m 14s and forecast to arrive on Monday (Aug 24) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 25) at 3AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Tue 18th Aug)4ft (1.2m) 8s
Best Surf12AM (Sun 23rd Aug)7ft (2.2m) 10s
Most Powerful 6AM (Mon 24th Aug)7.5ft (2.3m) 14s

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


The Lowdown

Alright, Rusty here. Let's take a look at the next couple of weeks, and I'll tell you straight – it starts slow, has one hell of a burst in the middle, and then quiets down again.

We open on Tuesday the 18th with a touch of surf. A 4ft swell from the ENE with an 8-second period, and the energy is moderate at 219. A light northerly breeze will keep it clean. It's a surfable start, but nothing to write home about.

Then from Wednesday the 19th to Friday the 21st, the ocean just goes quiet. Swell drops below 3ft, and the winds are messy. It's a few days of flatness, so don't bother grabbing a board.

Things pick up on Saturday the 22nd with a south swell at 5ft, but the southwest wind is blowin' 25 km/h and it's choppy. Not good. Sunday the 23rd has a bit more size, up to 6ft, but still messy.

Now, here's the big one. Monday the 24th is the standout. A solid 8ft of SSE groundswell at a very long 14-second period, with strong energy of 2004. The wind is glassy in the morning. This is a proper winter swell. It's going to be big, powerful, and clean. This is for experienced surfers only – at this size, it's pushing limits. The river jetty will handle it well. Get out there early, because an afternoon easterly breeze will mess it up a bit.

Tuesday the 25th is the next best day. The swell backs down to 5ft from the SSE with a 12-second period. Energy is still strong at 630. A light north cross-offshore wind in the morning will keep it glassy. It's a much more manageable size than Monday, so if you're not up for the big stuff, this is your day. Expect very good surf.

After that, the swell fades. Wednesday the 26th is small and glassy, but weak. From the 27th through the 30th, it's a mix of small swells and tricky winds. There are a few clean pockets, but it's small and inconsistent. Not worth the effort.

The last few days of the window, the 31st through September 2nd, stay inconsistent. There's a bit more energy on the 2nd, with a 4ft SSE swell and a 12-second period, but the winds look rainy and unsettled. It's a long-range hope, but nothing to get excited about just yet.

So, to make it simple: Monday the 24th is the day for the experienced crew. Tuesday the 25th is your call if you want it a bit more user-friendly. Skip the flat spell and don't hold your breath for the end of the window.

Rusty, out.

Short Range Forecast

Light rain (total 2mm), mostly falling on Wed morning. Warm (max 25°C on Tue morning, min 16°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Thu night. Warm (max 20°C on Thu night, min 8°C on Sat night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
0
0
0
0
0
0
0
0
0
0
1
0
0
4
2
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)
1.5
ENE
8
1.2
ENE
8
1.1
E
8
0.9
ENE
8
0.8
ENE
8
0.7
ENE
8
0.8
S
7
0.8
ESE
5
0.9
E
6
1.1
E
7
0.7
ENE
7
1.2
SSW
8
2.1
SSW
9
1.6
S
8
1.6
S
8
2.2
S
10
1.7
S
11
2.1
S
11
1.9
SSE
12
Wave Graph
Metric surfscale
Energy kJ
293
212
169
122
94
68
62
35
52
124
49
197
631
329
346
913
720
1046
1082
Wind (km/h)
5
N
10
N
15
S
20
SSW
10
SSW
5
ENE
10
NE
20
NE
15
NE
10
SW
15
W
20
SW
20
SW
25
SW
25
SW
15
SW
10
SW
15
S
10
WSW
Wind State
cross-off
cross-off
cross-on
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross
cross
cross-off
cross
cross-on
cross-off
High Tide
9:38PM0.24m
3:23AM0.55m
3:34PM0.48m
10:30PM0.22m
4:06AM0.49m
4:02PM0.46m
11:13PM0.21m
4:51AM0.42m
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
Low Tide
11:14PM0.22m
7:22AM0.23m
7:41PM0.14m
7:48AM0.25m
12:39PM0.32m
8:22PM0.14m
8:08AM0.28m
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
part cloud
part cloud
cloud
part cloud
light rain
cloud
light rain
part cloud
part cloud
rain showers
cloud
clear
part cloud
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:47
6:46
6:45
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:57
5:57
5:58
5:59
5:59
 mm
1
1
1
Temp °C
24
25
20
19
17
18
18
19
21
20
17
17
14
13
14
10
12
13
11
Feels °C
24
25
20
20
18
19
19
17
21
19
14
13
9
7
8
5
8
8
7
  • 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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