Surf Forecasts:
Molhes de Mampituba surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 16 Aug, 9PM (local time) - 10ft (3.0m), 9s period, ENE swell with cross-shore winds.
- Most powerful swell: Sunday 23 Aug, 9AM (local time) - 8ft (2.5m), 10s period, S swell with 1,550 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 9AM (local time) - 8ft (2.4m), 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 Sunday (Aug 16) at 9AM. The primary swell is predicted to be 2.4m and 8s period with a secondary swell of 1.8m and 8s. Another secondary swell of 0.7m and 10s 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 10s and forecast to arrive on Sunday (Aug 23) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Friday (Aug 21) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sun 16th Aug) | 8ft (2.4m) 8s |
| Best Surf | 9PM (Sun 16th Aug) | 10ft (3.0m) 9s |
| Most Powerful | 9AM (Sun 23rd Aug) | 8ft (2.5m) 10s |
Table - best surf conditions forecast for Molhes de Mampituba over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s break down what’s happening at Molhes de Mampituba over the next couple of weeks. This is a river/jetty setup that’s fairly consistent, exposed to swell, and it’s best with offshore winds from the NW. The water’s sitting at 62°F right now, which is about 0.9°F cooler than normal for this time of year – nothing unusual, just a touch crisp.
We’ve got a bit of a slow start, but things kick off this Sunday morning, August 16, with a solid 8ft swell from the ENE, period around 8 seconds, and light cross-offshore winds from the NNE. The combined energy is strong at 1245, so there’s plenty of grunt in the water. The surf is clean and excellent for experienced surfers – that’s a standout morning. Come Sunday afternoon, the wind picks up from the NE at 16 mph, making conditions cross and poor, so get out early.
Monday morning, August 17, is another good one: 7ft ENE swell, light cross-offshore breeze from the NNE, and clean surf with energy still high at 1070. Again, this is for the experienced crew. Monday afternoon goes onshore with a light SSE wind, and conditions become marginal.
From Tuesday, August 18, through to Friday, August 21, the surf drops off significantly. Swell heights hover around 2ft to 4ft, periods are short, and the wind is mostly cross or cross-onshore. The energy is weak (68 to 340), and conditions are poor for surfing. There’s a gap of several days with no real recommendations.
Saturday, August 22, brings a change: a 7ft southerly swell with a 10-second period, but the wind is cross from the SW at 12 mph, and the energy is strong at 1363. Conditions are marginal, not great for paddling.
Now, the real standout window is the morning of Sunday, August 23. We’ve got an 8ft swell from the S, period 10 seconds, and glassy light cross-offshore winds from the W at just 3 mph. The combined energy is massive at 2430, and the surf is clean and excellent for experienced surfers. This is the best session on offer. Sunday afternoon, the swell jumps to 10ft from the S with an 11-second period, but the wind is cross from the SW at 16 mph, and the energy is huge at 3122 – it’s predicted to be too big for this break, so only experts should even consider it.
The following week from Monday, August 24, to Thursday, August 27, has some decent morning windows. Monday morning, August 24, has a 5ft S swell with a long 11-second period, light cross-offshore winds from the WSW, and clean conditions (energy 574). Tuesday morning, August 25, offers 4ft SSE swell, 10-second period, light offshore NNE winds, and clean surf (energy 390). Wednesday morning, August 26, brings 4ft SSE swell with a very long 12-second period, light offshore NNE winds, and clean conditions (energy 471). Thursday morning, August 27, has a 6ft ENE swell, 7-second period, light offshore NNE winds, and clean surf (energy 612). These are all good, but the wind is light and the surf is clean, so they’re worth a paddle.
After that, from Friday, August 28, through to Monday, August 31, the surf drops back to small, weak, and messy. Swell heights are 3ft to 5ft, periods are short, and the wind is often cross or onshore. The energy is low (156 to 707), and conditions are generally poor. Monday morning, August 31, has a 5ft E swell with a short 6-second period, cross-offshore NNE winds, and clean surf, but it’s marginal.
So, if you’re an experienced surfer, lock in the mornings of Sunday, August 16, Monday, August 17, and especially Sunday, August 23. That Sunday morning is the pick of the lot – clean, strong, and glassy. For the rest, it’s a waiting game, but there’s some decent early sessions in the second week too.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sun morning. Warm (max 24°C on Mon morning, min 17°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 21°C on Thu afternoon, min 10°C on Fri night). Winds increasing (calm on Thu afternoon, fresh winds from the SSW by Fri night). | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
AM | 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 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 7 | ENE 7 | E 7 | E 7 | E 7 | SSW 9 | SSW 10 | S 10 | S 10 | S 10 |
Wave Graph | |||||||||||||||||||||
727 | 459 | 1055 | 675 | 623 | 333 | 176 | 176 | 144 | 115 | 90 | 89 | 193 | 130 | 100 | 45 | 106 | 245 | 804 | 464 | 816 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | on | cross-off | cross | cross-on | glassy | cross-on | cross-on | cross-off | cross | cross-on | cross | cross-off | cross-off | cross | cross | cross-on | cross-off |
High Tide | 2:33PM0.46m | 8:43PM0.29m | 8:39AM0.24m | 3:03PM0.48m | 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 | ||
Low Tide | 10:35AM0.08m | 6:05PM0.20m | 6:55AM0.21m | 6:56PM0.16m | 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 | ||||
6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | |
— | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | |
mm | 3 | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | — | 1 | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 18 | 24 | 22 | 23 | 20 | 20 | 19 | 20 | 19 | 19 | 20 | 21 | 20 | 19 | 20 | 12 | 12 | 14 | 11 |
Feels °C | 18 | 18 | 17 | 24 | 23 | 25 | 19 | 20 | 21 | 21 | 21 | 20 | 21 | 22 | 20 | 13 | 15 | 6 | 7 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | E 8 | SSE 10 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 7 | ESE 6 | E 7 | E 7 | E 7 | ENE 7 | S 10 | S 10 | ENE 8 | S 10 |
428 | 58 | 631 | 376 | 333 | 333 | 176 | 176 | 144 | 115 | 90 | 89 | 68 | 130 | 100 | 45 | 40 | 123 | 524 | 26 | 450 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | — | SSE 10 | SSE 10 | SSE 9 | SSE 10 | S 10 | S 9 | S 8 | S 6 | S 7 | ENE 8 | ENE 8 | S 8 | S 8 | SSW 7 | S 9 | ENE 8 | ENE 8 | — | ENE 8 |
90 | — | 39 | 19 | 9 | 10 | 7 | 6 | 1 | 7 | 25 | 48 | 44 | 21 | 21 | 21 | 42 | 33 | 35 | — | 13 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 10 | — | — | E 13 | SE 12 | S 11 | SSE 10 | S 8 | SE 6 | SE 6 | E 11 | S 17 | — | — | — | — |
— | — | — | — | — | 2 | — | — | 4 | 6 | 10 | 32 | 35 | 10 | 6 | 2 | 6 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | S 3 | — | — | — | NE 3 | ENE 7 | — | WSW 2 | WSW 2 | SSW 9 | SSW 10 | S 10 | S 10 | S 10 |
727 | 459 | 1055 | 675 | 623 | — | — | 1 | — | — | — | 3 | 193 | — | 1 | 1 | 106 | 245 | 804 | 464 | 816 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 168 | 275 | 0 | 281 | 0 | 152 | 138 | 0 | 97 | 14 | 0 | 156 | 156 | 3 | 138 | 157 | 169 | 97 | 97 | 0 |
Best forecast wave conditions in Rio Grande Do Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











