Molhes de Mampituba Surf Break

Lat Long: 29.40° S 49.77° W

Molhes de Mampituba Surf Forecast and Surf Report

Issued: 2 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Molhes de Mampituba sea temperature is
16.9° C
0.3° 

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: Monday 24 Aug, 12AM (local time) - 7.5ft (2.3m), 13s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 12PM (local time) - 7.5ft (2.3m), 14s period, SSE swell with 2,056 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 9AM (local time) - 2.5ft (0.8m), 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 Wednesday (Aug 19) at 9AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.2m and 7s. Another secondary swell of 0.3m and 3s is also forecast. 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 2.3m 14s and forecast to arrive on Monday (Aug 24) at 12PM. 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 5s period and expected on Friday (Aug 21) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Wed 19th Aug)2.5ft (0.8m) 8s
Best Surf12AM (Mon 24th Aug)7.5ft (2.3m) 13s
Most Powerful12PM (Mon 24th Aug)7.5ft (2.3m) 14s

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


The Lowdown

Righto, surfers, Rusty here. Let's have a look at the next 16 days for our local stretch.

We're looking at Molhes de Mampituba, a river/jetty setup that's fairly consistent. It's a tough start, though. The first recommendation doesn't come until Tuesday morning, the 19th of August, and even then it's a small one. That means there's a gap of nothing to write home about from now until then.

Tuesday morning the 19th will see tiny 3 ft waves from the ENE with a short 8-second period. The energy is weak (106). The real story here is the wind: it's glassy. That's a huge positive for such a small day, so if you're desperate for a paddle, you could get a few grovelly ones in. The water temp is sitting at 62°, which is about normal for this time of year, so nothing wild there.

The rest of the week is a bit of a write-off. Thursday the 21st has a bit more size, but the wind is all over the shop, mostly cross or onshore, making a mess of things. The energy on Thursday afternoon ramps up (283) from a 5 ft ENE swell, but the period drops to a terrible 6 seconds, so it's just a bumpy, choppy mess.

The first real standout, and the one to circle on your calendar, is Monday morning the 24th of August. We've got a solid 8 ft swell from the SSE, and the period is a very long 14 seconds. That's groundswell with serious grunt, and the combined energy is a massive 1892. Now, this is over 8 ft, so this is for experienced surfers only. The wind is a clean cross-off from the WSW, which is a dream for this spot. The only catch is the long period – at a beach/jetty break, it can make the waves a bit too straight. But with that wind and size, it's going to be a proper session for the crew that knows what they're doing. The next morning, Tuesday the 25th, is still decent with a 5 ft SSE swell (13 secs, 802 energy) and clean cross-off wind, but Monday is the pick.

The following week sees a few more interesting moments. Wednesday morning the 26th of August is glassy with a 4 ft swell from the SE, but the period is a staggering 16 seconds. That's an incredibly long groundswell, and the energy is still high (1260). It'll be clean, but that long period might make it a bit tricky at the jetty. It's another one for the experienced crew.

After that, things drop off again. The wind gets messy, and the swells are small and short-period. There's a bit of a pulse on the 30th of August (Sunday) with 5 ft from the ENE, but it's cross-shore wind and inconsistent. The final few days into September look messy with onshore winds, so don't get your hopes up.

In short, Monday the 24th is the absolute standout. Get out there if you can handle the size. The glassy mornings on the 19th and 26th are worth a look for a quiet, clean paddle, but the 24th is where the real power is at.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed morning. Warm (max 21°C on Tue afternoon, min 16°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Fri afternoon, min 9°C on Sun night). Winds decreasing (fresh winds from the SSW on Sun afternoon, calm by Mon morning).

Tue
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
1
0
1
0
0
0
2
0
0
1
1
0
4
4
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
ENE
8
1
E
8
0.8
ENE
8
0.7
ENE
8
1
ENE
8
0.8
ENE
5
1.4
ENE
6
1
E
7
0.7
ENE
7
1.1
SSW
8
1.9
SSW
8
1.4
S
8
1.4
S
8
1.4
S
9
1.4
S
11
1.5
S
11
2.3
SSE
13
2.3
SSE
14
2.2
SSE
14
1.9
SSE
13
Wave Graph
Metric surfscale
Energy kJ
176
144
94
70
113
35
155
100
48
167
509
252
260
347
457
553
1792
1886
1859
1249
Wind (km/h)
10
S
15
SSW
5
S
5
SSE
15
NE
25
NE
15
ENE
10
SW
20
W
20
SW
15
SW
25
SSW
25
SSW
10
SW
15
SW
30
SSW
15
SW
5
WSW
10
E
10
NNW
Wind State
cross-on
cross
glassy
on
cross
cross
cross
cross
cross-off
cross-off
cross
cross
cross-on
cross
cross
cross-on
cross-off
cross-off
cross-on
cross-off
High Tide
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
1:33PM0.54m
11:46PM0.36m
Low Tide
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
5:38AM0.09m
7:12PM0.28m
cloud
part cloud
light rain
light rain
cloud
part cloud
part cloud
part cloud
cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:47
6:46
6:45
6:43
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
6:00
 mm
1
2
Temp °C
21
19
18
18
18
19
20
20
16
17
14
13
14
12
13
14
11
11
12
11
Feels °C
21
20
20
20
19
20
20
19
13
14
10
9
9
9
8
7
6
9
10
8
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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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