Surf Forecasts:
Molhes de Mampituba surf forecast from 28 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 6PM (local time) - 10ft (3.0m), 11s period, S swell with cross-shore winds.
- Most powerful swell: Wednesday 2 Sep, 12AM (local time) - 11ft (3.5m), 11s period, S swell with 2,930 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 6AM (local time) - 3.5ft (1.0m), 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 Saturday (Aug 29) at 6AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.3m and 4s 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 3.5m 11s and forecast to arrive on Wednesday (Sep 02) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Tuesday (Sep 01) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 29th Aug) | 3.5ft (1.0m) 8s |
| Best Surf | 6PM (Tue 1st Sep) | 10ft (3.0m) 11s |
| Most Powerful | 12AM (Wed 2nd Sep) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Molhes de Mampituba over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at what’s cookin’ for Molhes de Mampituba. It’s a river/jetty setup that really needs a clean window to shine, and for the next couple of days, it’s just not happening.
We’re starting on Friday the 28th with rain showers and a lumpy, cross-on wind. The surf is up at 4 ft from the ENE, but it’s a short period wind swell at 8 seconds, and the water is sitting at 62°, a bit colder than usual for this time of year. It’s not pretty. The combined swell energy is moderate (292), but it’s messy.
Saturday morning the 29th looks glassy as can be, with zero wind, and the swell drops back to 3 ft from the ENE. The wave energy is weaker (181), but with those glassy conditions, it’s surfable – just very ordinary. That afternoon gets crossed up again.
Sunday the 30th has another glassy start, waves a touch smaller at 3 ft from the E, and again, it’s just ordinary, surfable waves. The energy is low (126). The window is there, but the swell is weak.
Now, Monday the 31st is where we get a little spark. The morning shows a 7 ft swell from the E, and with clean cross-off wind from the NE, the forecast says very good surf. The combined energy is strong (912). It’s a bit of a spike, and for an intermediate spot, this is a proper session. The afternoon goes glassy with the swell dropping to 6 ft, still good.
Tuesday the 1st of September turns nasty with fresh, strong winds. The morning has a clean look to it (22 mph cross-off) but only 4 ft. The afternoon sees a big 10 ft SSW swell roll in with a 10 second period, but it’s crossed up with a fresh breeze. The wave energy is massive (1654), but the quality is poor – that’s more of a kiteboarding situation than a paddle session.
Wednesday the 2nd is marginal with 7 ft of SSE swell, but the cross-shore wind makes it a bit lumpy. Not a standout.
We get a reprieve on Thursday the 3rd. The morning is clean with 4 ft from the SE, a 9-second period, and gentle cross-off wind. The energy is moderate (306), and it’s a good, clean option.
After that, it’s a bit of a lull with small surf until Saturday the 5th of September. The morning brings a 6 ft swell from the S, and a clean cross-off wind from the NNE. The energy is strong (722), and the forecast says very good surf. That Saturday morning window is the best on offer in the first week.
Looking further out, the real standouts come on Thursday the 10th of September. The morning shows a 7 ft SSW swell with a 9-second period, and a clean cross-off. The wave energy is very strong (1713). This is excellent for experienced surfers. The following morning, Friday the 11th, has a 10 ft SSE swell but the file says it’s predicted to be too big for this break, so only for the brave.
The true highlight, though, is Saturday morning the 12th of September. You’ve got a 7 ft swell from the SE, an 11-second period, clean cross-off wind, and very strong energy (1232). That’s the call for the full trip. The wind will be clean, the swell has power, and it’s an excellent window for experienced surfers at Molhes.
So, to sum it up: the first week is mostly small and clean but ordinary, with a good spike on Monday the 31st and Saturday the 5th. The second week, especially the 10th and 12th, holds the real quality. Stay patient.
Rusty.
Short Range ForecastHeavy rain (total 89mm), heaviest during Sat morning. Warm (max 20°C on Fri afternoon, min 16°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Mon afternoon. Very mild (max 19°C on Mon afternoon, min 11°C on Wed night). Winds increasing (calm on Mon afternoon, fresh winds from the WSW by Tue morning). | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 7 | E 8 | E 8 | E 8 | SSW 10 | S 11 | SSE 10 | SSE 10 | SE 9 | SE 9 | ESE 9 | NE 6 |
Wave Graph | ||||||||||||||||||||
246 | 180 | 154 | 144 | 136 | 108 | 185 | 321 | 520 | 391 | 298 | 186 | 1587 | 2930 | 849 | 657 | 396 | 247 | 203 | 83 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | glassy | cross | off | glassy | cross-on | cross-off | cross-off | glassy | glassy | cross-off | cross | cross | cross | on | cross-off | cross-off | cross | glassy |
High Tide | 00:58AM0.56m | 2:00PM0.47m | 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 | ||||
Low Tide | 8:49PM0.22m | 9:03AM-0.06m | 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 | |||
— | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | |
6:01 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | |
mm | 4 | 5 | 19 | 5 | 8 | 11 | 9 | 25 | 3 | 4 | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 15 | 18 | 14 | 15 | 15 | 13 | 16 | 17 | 16 |
Feels °C | 21 | 17 | 19 | 17 | 19 | 20 | 19 | 20 | 21 | 22 | 18 | 7 | 11 | 9 | 12 | 12 | 11 | 13 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | SSE 6 | SSE 6 | E 7 | E 8 | E 8 | E 8 | E 8 | SSE 11 | SSE 10 | SSE 10 | SE 9 | SE 9 | ESE 9 | ENE 6 |
246 | 180 | 154 | 144 | 136 | 108 | 10 | 13 | 392 | 391 | 298 | 186 | 51 | 1692 | 849 | 657 | 396 | 247 | 203 | 42 | |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SE 10 | SE 10 | SSE 10 | SSE 5 | SSE 5 | SE 9 | SE 9 | — | — | SSE 6 | SE 10 | SE 10 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | S 8 | S 8 | S 8 |
46 | 27 | 25 | 9 | 9 | 9 | 3 | 3 | — | — | 27 | 15 | 16 | 17 | 37 | 34 | 19 | 42 | 48 | 61 | |
Swell 3 Height (m) Direction Period (s) | — | — | S 4 | — | SSE 10 | SSE 10 | — | — | — | — | SSE 7 | SE 10 | — | — | — | ENE 10 | — | ENE 9 | ENE 9 | SE 9 |
— | — | 2 | — | 9 | 9 | — | — | — | — | 26 | 15 | — | — | — | 40 | — | 17 | 16 | 68 | |
Wind waves Height (m) Direction Period (s) | — | S 4 | — | — | — | — | E 8 | E 7 | E 7 | — | WSW 3 | SW 5 | SSW 10 | S 11 | — | — | — | NE 2 | ENE 9 | NE 6 |
— | 2 | — | — | — | — | 185 | 321 | 520 | — | 1 | 31 | 1587 | 2930 | — | — | — | 2 | 119 | 83 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 127 | 3 | 0 | 138 | 0 | 0 | 156 | 0 | 0 | 0 | 0 | 205 | 256 | 171 | 3 | 157 | 0 | 0 | 156 | 0 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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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.











