Surf Forecasts:
Molhes de Mampituba surf forecast from 7 Sep 2026:
- Best quality surf: Monday 14 Sep, 12AM (local time) - 6ft (1.8m), 10s period, SSE swell with offshore winds.
- Most powerful swell: Saturday 12 Sep, 9PM (local time) - 8ft (2.5m), 11s period, SSE swell with 1,788 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 6AM (local time) - 4.5ft (1.4m), 10s period with SSE 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 (Sep 07) at 6AM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.2m 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 2.5m 11s and forecast to arrive on Saturday (Sep 12) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Sep 08) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 7th Sep) | 4.5ft (1.4m) 10s |
| Best Surf | 12AM (Mon 14th Sep) | 6ft (1.8m) 10s |
| Most Powerful | 9PM (Sat 12th Sep) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Molhes de Mampituba over the next 16 days.
The Lowdown
Alright, let’s talk in feet and miles per hour now.
We start off on Monday 7th September at Molhes de Mampituba. Morning glass – dead calm, clean swell at about 4-5ft from the SSE, period around 10 seconds. That’s a fun, solid wave with moderate energy (339). The wind is offshore from the NNW and light as can be. The river mouth should be clean and working. Crowds are often a thing there, so early is your friend. This is the best of the first week. Water temp feels about normal for the season, nothing crazy.
Tuesday 8th September morning stays tidy with a smaller 3ft SSE swell, cross-off wind, energy at 262. It’s surfable, but you won’t be screaming about it. Afternoon goes soft with a light cross-on.
Wednesday 9th and Thursday 10th September are small and inconsistent. Thursday morning does go glassy again with a waist-high 2-3ft SSE swell, but the period jumps to 15 seconds – that’s a real groundswell. At a river mouth, those long lines can be tricky, but the energy is there (426). Worth a look.
Friday 11th drops way off, and the weekend gets blown out. Saturday 12th is marginal, Sunday 13th pushes up to 7-8ft SSE but with messy cross-onshore wind and strong energy (1104). Only for the experts, and even then, it’s rough.
Now the good stuff.
Monday 14th September: morning has a solid 7ft SE swell, clean cross-off, energy at 1548. But Monday afternoon is the one – 8ft ESE swell, period 9 seconds, near glassy north wind. That’s a powerful, big-wave session with energy at 1825. This is for experienced surfers only. Absolute standout.
Tuesday 15th morning is still solid – 6ft ESE, clean, energy 574 – really good for intermediates. Afternoon goes choppy.
After a lull, Thursday 17th morning brings back 5ft S swell, clean, energy 504 – solid. But the big one is Friday 18th September morning: 6ft SSE swell with a very long 14-second period, clean cross-off wind, and energy blasting at 1520. That’s a serious groundswell hitting the jetty – should be excellent for the strong paddlers.
Saturday 19th is smaller and clean but nothing special. Sunday 20th onward is shot – onshore wind, small junk. Not worth wetting a leash.
Best bets: Monday 14th September afternoon (8ft, clean, huge energy) and Friday 18th September morning (6ft, long period, excellent). Mark your calendar.
Rusty
Short Range ForecastMostly dry. Very mild (max 18°C on Wed morning, min 9°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 36mm), heaviest during Fri afternoon. Warm (max 20°C on Sat morning, min 14°C on Sat afternoon). Winds increasing (calm on Wed night, fresh winds from the SW by Sat afternoon). | ||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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) | S 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 11 | SSE 12 | SSE 10 | S 12 | SSE 15 | SSE 14 | S 12 | S 12 | ENE 6 | E 7 | ENE 8 | S 6 | SSE 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 489 | 334 | 416 | 269 | 164 | 149 | 164 | 150 | 184 | 180 | 312 | 258 | 110 | 67 | 95 | 142 | 94 | 176 | 1624 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross-off | cross-off | cross-on | cross-off | cross-on | cross-on | cross-off | glassy | on | glassy | cross-off | cross | off | cross | cross | cross-on |
High Tide | 1:02AM0.30m | 1:49PM0.67m | 1:34AM0.30m | 2:39PM0.64m | 9:36PM0.36m | 3:29PM0.58m | 10:51PM0.45m | 4:20PM0.50m | 11:42PM0.52m | 12:51PM0.41m | 00:26AM0.58m | 1:08PM0.44m | 6:12PM0.32m | ||||||
Low Tide | 9:48PM0.16m | 5:03AM0.06m | 10:49PM0.24m | 6:03AM-0.01m | 7:13PM0.32m | 6:52AM-0.05m | 7:35PM0.30m | 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 | ||||
 |  | | | |  |  | | | |  | |  |  |  |  | | | | |
 | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — |
 | 6:06 | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | 29 | 2 | — | 1 | 4 |
Temp °C | 10 | 12 | 13 | 11 | 16 | 16 | 17 | 18 | 18 | 17 | 17 | 18 | 18 | 19 | 18 | 19 | 20 | 15 | 14 |
Feels °C | 5 | 9 | 9 | 7 | 14 | 15 | 16 | 17 | 18 | 19 | 18 | 19 | 20 | 19 | 17 | 20 | 20 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | S 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 11 | ENE 7 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 5 | E 7 | ENE 8 | E 8 | SSE 11 |
| kJ | 489 | 334 | 416 | 269 | 164 | 149 | 164 | 86 | 99 | 112 | 111 | 86 | 84 | 60 | 32 | 142 | 94 | 42 | 1624 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | SE 12 | E 5 | E 6 | E 6 | SSE 12 | SSE 10 | S 12 | SSE 15 | SSE 14 | S 12 | SE 5 | E 8 | S 10 | SE 6 | SSE 13 | ENE 8 |
| kJ | 5 | 5 | 5 | 37 | 20 | 30 | 47 | 150 | 184 | 180 | 312 | 258 | 110 | 12 | 41 | 19 | 9 | 17 | 14 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 8 | SE 12 | S 16 | S 9 | S 10 | SE 9 | SSE 16 | SE 8 | SE 8 | E 14 | S 12 | SSE 11 | E 12 | S 10 | E 12 | — |
| kJ | — | — | — | 5 | 38 | 5 | 26 | 65 | 3 | 27 | 3 | 3 | 4 | 67 | 39 | 3 | 17 | 3 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 4 | ENE 5 | ENE 6 | — | — | — | — | — | — | — | — | ENE 6 | — | SW 2 | S 6 | — |
| kJ | — | — | — | 10 | 40 | 43 | — | — | — | — | — | — | — | — | 95 | — | 1 | 176 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 156 | 0 | 0 | 9 | 0 | 32 | 128 | 0 | 0 | 127 | 0 | 0 | 156 | 0 | 6 | 287 | 748 |
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.
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