Surf Forecasts:
Molhes de Mampituba surf forecast from 31 Aug 2026:
- Best quality surf: Monday 31 Aug, 9PM (local time) - 7.5ft (2.3m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 12PM (local time) - 8ft (2.5m), 11s period, S swell with 1,612 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 3AM (local time) - 5ft (1.5m), 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 Monday (Aug 31) at 3AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 1.2m and 8s. Another secondary swell of 0.6m and 6s 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 11s and forecast to arrive on Sunday (Sep 06) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Sunday (Sep 06) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 31st Aug) | 5ft (1.5m) 8s |
| Best Surf | 9PM (Mon 31st Aug) | 7.5ft (2.3m) 8s |
| Most Powerful | 12PM (Sun 6th Sep) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Molhes de Mampituba over the next 16 days.
The Lowdown
Alright, let’s break this down in feet and knots. The forecast runs 16 days, but the first few days are a write-off – Monday is wet and messy. The real action kicks off Tuesday morning.
The only spot in the game is Molhes de Mampituba, a river/jetty break that’s fairly consistent, exposed to the south-east. Water temp is about average for the time of year.
Tuesday morning (1st September) – clean 5ft swell from the ESE at 8 seconds, with a light offshore WSW breeze at 3 knots. The combined energy is moderate at 350. It’s clean and surfable.
Wednesday morning (2nd September) is the first real standout. Clean again, 5ft from the ESE, period 9 seconds, with a WSW breeze at 6 knots, cross-off. The combined energy is 474 – moderate but punchy. The jetty will be offering nice lines.
Thursday morning (3rd September) – 4ft SE swell at 10 seconds, glassy NNW breeze at 3 knots. Clean, but the energy is dropping to 321. Good for a longboard.
Friday and Saturday (4th and 5th September) are messy. The wind turns onshore, the swell gets short and weak, energy drops to 143 and 159. Poor conditions.
Sunday (6th September) – swell jumps to 7ft from the south at 11 seconds, but the wind is a strong 15-18 knots cross-shore. The combined energy is 1030 – powerful, but lumpy. Expert territory.
Monday morning (7th September) is the absolute standout. 7ft SSE swell at 12 seconds – that’s a long-period groundswell. The wind is glassy, dead calm. The combined energy is a massive 1259. This is excellent surf for experienced surfers – clean, powerful, long lines. The sets will be well-spaced, making paddling out easier. This is the session to circle.
Tuesday morning (8th September) – 5ft SSE swell at 10 seconds, clean cross-off NNE breeze at 9 knots. Combined energy 519. Good follow-up.
Wednesday morning (9th September) – 7ft east swell at 8 seconds, clean cross-off NNE breeze at 9 knots. Combined energy 1048 – strong. The short period means steeper, punchier waves, but the jetty will line them up. Another one for experienced surfers.
The second week (from 10th September) is more mixed. Swell drops to 5 – 6ft, wind becomes more onshore. The standout in the second week is Saturday morning (12th September) – glassy, 5ft E swell at 11 seconds, combined energy 514. Dead calm wind. Clean, fun, but quiet.
Crowds at Molhes de Mampituba are often a factor, especially when conditions are good.
Bottom line: The first week is the play. The absolute pick is Monday morning (7th September) – 7ft, glassy, long period, massive energy. Wednesday morning (9th September) is also a cracker. The rest of the window is mixed, but there are still clean mornings for the patient surfer.
Stay safe, and don’t sleep on that Monday.
Rusty.
Short Range ForecastHeavy rain (total 77mm), heaviest during Mon afternoon. Very mild (max 17°C on Mon morning, min 14°C on Tue night). Mainly strong winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Thu morning, min 10°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the SSW by Fri afternoon). | ||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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) | E 8 | ENE 8 | E 7 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 10 | SE 10 | ESE 10 | ENE 8 | SE 10 | S 5 | S 7 | S 8 | S 12 | S 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 187 | 280 | 260 | 623 | 350 | 541 | 413 | 360 | 313 | 419 | 243 | 192 | 122 | 51 | 69 | 139 | 331 | 517 | 828 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | cross-on | cross-on | cross | cross | cross-on | off |
High Tide | 2:05AM0.59m | 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 | 4:51AM0.40m | 4:04PM0.38m | 11:44PM0.28m | 5:50AM0.31m | 12:08PM0.63m | 00:25AM0.29m | |
Low Tide | 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 | 7:31AM0.29m | 2:54PM0.37m | 8:20PM0.07m | 7:48AM0.27m | 9:01PM0.10m | ||
 |  |  |  | |  |  |  | | | | | |  | |  | | | | |
 | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — |
 | 6:02 | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — |
mm | 12 | 9 | 35 | 9 | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 14 | 19 | 19 | 18 | 14 | 13 | 12 | 12 | 14 | 12 |
Feels °C | 15 | 17 | 16 | 18 | 18 | 13 | 14 | 15 | 14 | 12 | 18 | 18 | 18 | 10 | 7 | 6 | 8 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | E 8 | S 8 | E 8 | ESE 8 | SE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 10 | SE 10 | ESE 10 | ENE 8 | ENE 8 | ENE 8 | S 7 | S 9 | E 8 | S 9 |
| kJ | 26 | 191 | 1 | 374 | 350 | 418 | 413 | 360 | 313 | 419 | 243 | 192 | 122 | 51 | 53 | 94 | 175 | 50 | 505 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 6 | — | — | — | SE 6 | NE 8 | ENE 10 | ENE 10 | ENE 10 | ENE 6 | E 9 | SE 10 | SE 10 | SE 10 | E 8 | E 8 | SE 9 | ENE 8 |
| kJ | 3 | 17 | — | — | — | 49 | 16 | 114 | 102 | 71 | 50 | 39 | 112 | 50 | 35 | 49 | 50 | 3 | 22 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | NE 8 | — | — | S 6 | S 7 | ENE 9 | S 7 | S 7 | — | S 9 | SE 10 | SE 9 | — | — |
| kJ | — | — | — | — | — | 24 | — | — | 10 | 1 | 28 | 1 | 1 | — | 2 | 25 | 14 | — | — |
Wind waves Height (m) Direction Period (s) | E 8 | ENE 8 | E 7 | E 8 | — | ESE 8 | S 7 | — | — | NE 3 | — | ENE 7 | — | S 5 | S 5 | S 7 | S 8 | S 12 | S 9 |
| kJ | 187 | 280 | 260 | 623 | — | 541 | 104 | — | — | 9 | — | 50 | — | 42 | 69 | 139 | 331 | 517 | 828 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 256 | 156 | 156 | 3 | 0 | 291 | 35 | 0 | 128 | 0 | 0 | 130 | 0 | 169 | 169 | 53 | 35 | 157 | 0 |
Best forecast wave conditions in Rio Grande Do Sul | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Molhes de Mampituba surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest