Surf Forecasts:
Molhes de Mampituba surf forecast from 19 Aug 2026:
- Best quality surf: Monday 24 Aug, 6AM (local time) - 8ft (2.4m), 16s period, SSE swell with offshore winds.
- Most powerful swell: Monday 24 Aug, 6AM (local time) - 8ft (2.4m), 16s period, SSE swell with 2,758 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 6PM (local time) - 3.5ft (1.0m), 6s period with E 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 (Aug 20) at 6PM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Molhes de Mampituba in the next 16 days are 2.4m 16s and forecast to arrive on Monday (Aug 24) at 6AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Friday (Aug 21) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 20th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 6AM (Mon 24th Aug) | 8ft (2.4m) 16s |
| Most Powerful | 6AM (Mon 24th Aug) | 8ft (2.4m) 16s |
Table - best surf conditions forecast for Molhes de Mampituba over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s look at the next couple of weeks at Molhes de Mampituba. It’s a river/jetty setup, exposed to the sea, and the optimum swell direction is SE. The water temp is sitting at 63°, which is about average for the time of year.
The first few days are a bit of a write-off. We’ve got some small, weak energy on Wednesday afternoon – a tiny 2ft from the ENE with a short 8-second period, and the combined energy is only 109 – weak. It’s glassy, but the conditions are just ordinary. After that, the wind gets messy from Thursday right through the weekend, with a mix of cross-off, cross, and cross-on breezes, and the swell stays small and jumbled. The energy stays low, usually around 100-330, and the wave quality is poor. Not worth paddling out. There’s a gap of a few days where nothing’s happening.
Now, looking ahead to the real standout. The best window is Monday the 24th of August in the morning. The swell is coming up from the SSE at 8ft with a very long period of 15 seconds – that’s proper groundswell, with lots of energy. The combined energy is a strong 2479, and the wind is light from the NNE, blowing cross-off, so it’ll be clean. That’s excellent surf for experienced surfers. The swell direction is a good match for the optimum SE. Just be aware, with a long period groundswell, the sets can be a bit fat at a beach setup, but this is a river/jetty, so it should handle it well. Expect some crowds here – it’s often busy. The Tuesday morning after (25th) is also solid: 5ft SSE swell, 13-second period, light NNE cross-off, clean waves, and the energy is at 696 – moderate. Very good surf.
Into the second week, things get more uncertain. There’s a small window on Wednesday the 26th morning with a glassy, 3ft SSE swell, but it’s small. The 27th morning has a similar 3ft SSE swell, 13-second period, and a light N cross-off, so it could be clean but small. Later in the week, the swell switches back to ENE, and the winds are mostly onshore or cross-on, so it’s poor. The only other interesting blip is Sunday the 30th afternoon: a 5ft ESE swell, but it’s only 6 seconds, so short period, and the energy is 399. It’s glassy, but the quality is just average. After that, the first days of September look pretty grim with onshore winds and tiny surf.
So, for the best bet, get on that Monday the 24th of August morning. It’s the one.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 21°C on Thu morning, min 11°C on Fri night). Winds increasing (calm on Wed afternoon, fresh winds from the SSW by Fri afternoon). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Tue morning, min 9°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 5 | E 6 | ENE 7 | SSW 7 | SSW 8 | S 9 | S 9 | S 9 | S 10 | S 13 | SSE 12 | SSE 14 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 70 | 95 | 46 | 78 | 77 | 104 | 318 | 459 | 642 | 588 | 495 | 825 | 1082 | 2267 | 2479 | 1800 | 1089 | 681 | 540 | 361 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross |
High Tide | 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 | 1:06PM0.52m | 00:05AM0.31m | 1:33PM0.54m | 11:46PM0.36m | 2:01PM0.55m | 11:49PM0.41m | ||||
Low Tide | 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 | 4:28AM0.15m | 9:03PM0.29m | 5:38AM0.09m | 7:12PM0.28m | 6:27AM0.03m | 7:27PM0.26m | |||||
 |  |  |  |  | |  |  | | | | | |  | | | | | | | |
 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — |
 | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — |
mm | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 21 | 20 | 18 | 17 | 18 | 12 | 13 | 14 | 11 | 13 | 14 | 11 | 12 | 13 | 12 | 19 | 19 | 18 |
Feels °C | 20 | 19 | 22 | 20 | 16 | 12 | 12 | 6 | 9 | 8 | 7 | 8 | 8 | 7 | 9 | 9 | 9 | 16 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | S 8 | S 8 | ENE 7 | E 7 | ENE 7 | ENE 8 | S 9 | S 9 | S 10 | S 13 | SSE 12 | SSE 14 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 |
| kJ | 70 | 62 | 35 | 21 | 77 | 24 | 10 | 14 | 367 | 372 | 495 | 825 | 1082 | 2267 | 2479 | 1800 | 1089 | 681 | 540 | 361 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 6 | ENE 8 | ENE 8 | S 8 | E 11 | E 11 | — | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — | — | ENE 7 |
| kJ | 32 | 31 | 32 | 13 | 10 | 3 | 2 | — | 15 | 26 | 16 | 7 | 6 | 6 | — | — | — | — | — | 83 |
Swell 3 Height (m) Direction Period (s) | SE 13 | S 9 | SSE 6 | SSE 6 | SE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 26 | 3 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ENE 8 | ENE 5 | E 6 | SSW 3 | SSW 7 | SSW 8 | S 9 | S 9 | S 9 | — | — | — | — | — | — | ENE 4 | ENE 5 | ENE 6 | NE 7 |
| kJ | — | 95 | 46 | 78 | 1 | 104 | 318 | 459 | 642 | 588 | — | — | — | — | — | — | 6 | 15 | 32 | 195 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 156 | 156 | 156 | 0 | 169 | 260 | 169 | 128 | 118 | 0 | 3 | 157 | 0 | 0 | 156 | 0 | 0 | 156 | 3 |
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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