Molhes de Mampituba Surf Break

Lat Long: 29.40° S 49.77° W

Molhes de Mampituba Surf Forecast and Surf Report

Issued: 8 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Molhes de Mampituba sea temperature is
16.4°C
1.1° 

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 10 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 3AM (local time) - 5.5ft (1.7m), 8s period, E swell with glassy winds.
  • Most powerful swell: Wednesday 16 Sep, 12PM (local time) - 6.5ft (2.0m), 11s period, SSE swell with 925 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 3AM (local time) - 2.5ft (0.8m), 12s period with S 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 Thursday (Sep 10) at 3AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.9m and 8s. 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 2.0m 11s and forecast to arrive on Wednesday (Sep 16) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 10th Sep)2.5ft (0.8m) 12s
Best Surf 3AM (Tue 15th Sep)5.5ft (1.7m) 8s
Most Powerful12PM (Wed 16th Sep)6.5ft (2.0m) 11s

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


The Lowdown

Right, let’s have a look at what’s coming down the line. This forecast is all for Molhes de Mampituba, the river/jetties set-up. Over the next 16 days, it’s a bit of a mixed bag. There are some solid windows of clean surf, but also some proper blown-out spells and a few flat-ish days to sit through. The first proper action worth paddling out for isn’t until Thursday morning the 10th.

So, Thursday morning the 10th kicks things off. The swell is a modest 3 ft out of the SSE with a long period of 15 seconds – that’s proper groundswell energy. The combined energy is moderate at 389, and with a light 10 km/h cross-offshore breeze from the NE, the conditions are clean. It’s not big, but for a river-mouth setup, that long-period SSE groundswell will wrap in nicely and offer some lined-up walls. The water temp is about average for this time of year, nothing weird going on there.

Friday the 11th is a write-off. The swell is short-period junk and we’ve got heavy rain and onshore wind messing it all up. Saturday the 12th sees a bump in size – 5 ft on Saturday morning – but it’s from the SSE with a short period of 8 seconds and a messy cross wind. The combined energy is 491, but the wave comment says poor conditions. Don’t bother.

Sunday morning the 13th is a little tease. The swell drops back to 3 ft from the SSE, but the wind goes glass – dead calm, 5 km/h from the SSW. The combined energy is weak at 155, and the wave comment calls it “surfable but ordinary.” If you’re desperate for a glide, it’ll be clean but small and weak. The afternoon turns to crap again.

Monday the 14th and Tuesday the 15th are both blown out by strong winds, with moderate cross-chop and poor scores. Not worth a look.

Now, here’s where it gets interesting. Wednesday morning the 16th we get a proper pulse: 7 ft from the SSE with a long period of 11 seconds. The combined energy jumps to 926 – that’s strong wave energy. The wind is a light 10 km/h cross from the SSW, so it’s clean. This is getting into expert territory at that size, especially with that period. The jetties should focus it nicely, but it’ll be a heavy one. Not for the faint-hearted.

Thursday morning the 17th is the standout of the whole forecast. The swell is a more manageable 5 ft from the SSE, with an even longer period of 11 seconds. Combined energy is 520 – moderate-strong. But the wind is a light 15 km/h cross-offshore from the NNE, and the wave comment says “expect very good surf conditions.” This is the one. Clean, lined-up, solid groundswell hitting the jetties. Crowds are “often” here, so expect company, but for this quality, it’ll be worth it.

Friday morning the 18th brings another big one: 7 ft from the ENE with a short 8-second period, but the wind is glass – dead calm, 5 km/h from the SW. Combined energy is 853. That’s a big, fat, clean wall. Again, expert-only at that size, and the short period means it’ll be a bit dumpy and punchy on the banks. Look for the deeper channels.

After that, things fade. Saturday the 19th morning is a nice little 4 ft from the E with a 5 km/h cross-offshore breeze – clean but small. Sunday the 20th is tiny. Monday the 21st morning sees a long-period 3 ft groundswell from the S with a 12-second period and clean cross-offshore wind – combined energy 444, so decent for the size. A sneaky good session if you’ve got a log or a fish.

The rest of the second week is mostly small, messy, or onshore. Thursday the 24th morning has a nice glassy 3 ft from the SSE with a 12-second period and clean conditions. And Friday the 25th morning sees a solid 7 ft from the E with a 10-second period and clean cross-offshore wind, combined energy 962 – that’s a big end to the run, but it’s a week and a half out, so keep an eye on it.

Overall, the best windows are Thursday morning the 17th for the all-round quality, and Wednesday morning the 16th for the big, clean groundswell for the experienced crew.

Rusty.

Short Range Forecast

Heavy rain (total 43mm), heaviest during Fri afternoon. Very mild (max 19°C on Fri morning, min 15°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the SW by Fri night).

Days 5-7 Weather Summary

Heavy rain (total 41mm), heaviest during Mon morning. Very mild (max 19°C on Tue afternoon, min 14°C on Sat night). Wind will be generally light.

Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
1
1
1
0
1
0
0
2
1
0
0
0
0
1
1
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)
0.8
SSE
12
0.8
SSE
15
0.8
SSE
14
0.6
S
12
1
ENE
8
0.8
ENE
7
2.2
S
7
1.6
SSE
8
1.4
SSE
7
1
SE
8
0.9
SSE
7
1.1
SE
7
1.1
S
9
1.3
ESE
8
1.3
ESE
7
1.7
E
8
1.4
E
9
1
E
9
1.9
S
7
Wave Graph
Metric surfscale
Energy kJ
186
304
247
108
110
73
442
277
202
125
68
112
186
178
167
363
299
157
351
Wind (km/h)
5
NW
10
NE
10
SE
5
W
10
NE
15
NNE
20
SW
20
SW
20
S
10
WSW
5
SSW
15
E
20
NE
25
ENE
25
NE
15
ENE
15
SW
25
SSW
30
SSW
Wind State
glassy
cross-off
on
glassy
cross
cross-off
cross
cross
cross-on
cross-off
glassy
cross-on
cross
cross
cross
cross
cross
cross
cross
High Tide
10:51PM0.45m
4:20PM0.50m
11:42PM0.52m
12:51PM0.41m
00:26AM0.58m
1:08PM0.44m
6:12PM0.32m
1:33PM0.48m
7:14PM0.24m
7:10AM0.26m
2:01PM0.50m
8:19PM0.19m
8:28AM0.30m
2:30PM0.51m
9:23PM0.16m
Low Tide
7:35AM-0.06m
8:03PM0.28m
8:15AM-0.04m
2:59PM0.37m
8:33PM0.25m
8:54AM0.01m
4:20PM0.29m
9:03PM0.21m
9:31AM0.08m
5:19PM0.21m
9:33PM0.18m
6:07AM0.26m
6:07PM0.14m
6:27AM0.26m
6:49PM0.10m
rain showers
part cloud
part cloud
heavy rain
heavy rain
heavy rain
rain showers
part cloud
clear
part cloud
rain showers
rain showers
mod rain
heavy rain
mod rain
rain showers
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
6:20
6:20
6:18
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:08
6:08
6:09
6:09
6:10
 mm
1
16
12
11
3
1
3
10
12
7
8
Temp °C
15
18
17
18
19
19
18
16
16
15
16
16
15
14
14
14
18
19
15
Feels °C
16
18
17
18
20
19
14
13
13
13
15
14
12
10
10
10
14
15
10
  • 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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