Surf Forecasts:
Ribanceira surf forecast from 31 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 6PM (local time) - 8ft (2.4m), 8s period, SE swell with offshore winds.
- Most powerful swell: Tuesday 1 Sep, 9PM (local time) - 8ft (2.4m), 8s period, SE swell with 754 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 3AM (local time) - 3.5ft (1.1m), 8s period with ESE swell.
Best Forecast Surf Conditions for Ribanceira this week:
The surf forecast for Ribanceira over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 01) at 3AM. The primary swell is predicted to be 1.1m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ribanceira in the next 16 days are 2.4m 8s and forecast to arrive on Tuesday (Sep 01) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Friday (Sep 04) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 1st Sep) | 3.5ft (1.1m) 8s |
| Best Surf | 6PM (Tue 1st Sep) | 8ft (2.4m) 8s |
| Most Powerful | 9PM (Tue 1st Sep) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Ribanceira over the next 16 days.
The Lowdown
Alright, let's get into it. The overall pattern for Ribanceira is a slow start with some promise building later. We’ve got a bit of a wait on our hands.
First up, the real action doesn’t kick off until Tuesday, the 1st of September. Monday the 31st of August is a write-off with poor conditions and onshore breezes. Forget it.
From Tuesday morning the 1st of September, things start to turn. We’ve got a 5ft swell coming out of the ESE with a period of 8 seconds. The wind is offshore from the SW, which is a major positive – it’ll be clean. The combined swell energy is moderate (317), and the water temp is a normal 66° for this time of year. It’s surfable, but the quality isn't amazing just yet.
Tuesday afternoon, the 1st, looks better. The swell bumps up to 6ft from the SE, still 8 seconds, and we’ve got that same offshore wind from the SSW. The energy ramps up to 437, and the forecast is for good surf conditions. This is a decent window.
Wednesday the 2nd of September is the standout early on. The morning is looking clean with a 6ft SE swell at 9 seconds, light offshore wind from the SW, and combined energy of 450. Good shape expected. The afternoon sees the wind shift cross-shore, so it gets a bit more ordinary.
Now, we’ve got a bit of a lull from Thursday the 3rd through to Monday the 7th. There’s surf, but it's either too windy, too small, or messy. Thursday the 3rd is blown out, Friday the 4th is tiny, and the weekend sees some small, ordinary waves. Not worth getting excited about.
The next real standout comes on Monday the 7th of September in the afternoon. The swell is 5ft from the S, with a period of 11 seconds. That’s a longer period, meaning better shaped waves with more energy. The combined energy is strong at 532. The wind is cross-off from the SSE, so it’s clean. This is your best bet in the first week. It’s an intermediate wave, but with good quality.
The 8th and 9th of September are mostly onshore and messy. A bit of a gap there.
Thursday the 10th of September has a tiny 2ft S swell, but it’s glassy in the morning. Surfable but very small.
After another quiet spell, we get to a huge swell event on Sunday the 13th of September. The swell is 8ft from the SSE at 10 seconds. The combined energy is very strong at 1172 in the morning and 1326 in the afternoon. This is big, powerful surf. However, the wind is onshore and cross-on, so it will be very choppy and messy. This setup is only for experts, and honestly, the conditions don’t look good for paddling. If you’re into kite surfing, this might be your window. Otherwise, steer clear.
Finally, the true highlight of the entire outlook is Tuesday the 15th of September. The morning is glassy with a 6ft swell from the SE at 12 seconds. That’s a nice groundswell, with very long period. Combined energy is very strong at 1128. The wind is glassy from the WNW. This is going to be clean, powerful, and well-shaped. The longer period means the waves will have plenty of energy and good lines, but at a beach/sandbar break like Ribanceira, it might break a bit straight. Still, this is your best session of the whole 16-day window. The afternoon gets a bit cross-off and marginal.
So, the real standouts are the afternoon of Monday the 7th of September and the glassy morning of Tuesday the 15th of September. The 7th is more consistent for intermediate skills, while the 15th is the big, clean groundswell day for those who can handle it. The 13th is a write-off for surf due to wind.
Keep your eye on the forecast, because after that quiet start, there's some real potential.
Rusty.
Short Range ForecastHeavy rain (total 26mm), heaviest during Mon afternoon. Warm (max 22°C on Thu morning, min 13°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Sat night. Warm (max 23°C on Thu afternoon, min 14°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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) | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 10 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | S 6 | S 7 | S 8 | S 7 | S 7 | S 8 |
Wave Graph | ||||||||||||||||||||
137 | 212 | 307 | 437 | 589 | 450 | 492 | 500 | 361 | 286 | 191 | 89 | 65 | 35 | 48 | 62 | 122 | 85 | 142 | 364 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | off | off | off | off | cross | cross-on | cross-on | on | cross-on | off | cross-off | off | off | off | off | off | cross-off | off |
High Tide | 4:21PM0.59m | 4:33AM0.63m | 4:52PM0.53m | 5:25AM0.57m | 5:35PM0.47m | 6:39AM0.51m | 6:33PM0.41m | 7:46AM0.45m | 12:17PM0.43m | 7:27PM0.37m | 12:47PM0.49m | 8:40PM0.35m | 1:23PM0.54m | 11:15PM0.41m | ||||||
Low Tide | 9:19PM0.16m | 9:52AM0.17m | 9:21PM0.17m | 9:45AM0.25m | 9:29PM0.19m | 9:32AM0.32m | 1:18PM0.31m | 9:46PM0.21m | 9:17AM0.38m | 4:12PM0.30m | 3:47AM0.18m | 4:57PM0.26m | 4:40AM0.10m | 5:35PM0.23m | ||||||
— | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | |
6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | |
mm | 9 | 12 | 3 | 2 | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 2 | — | — | — |
Temp °C | 19 | 18 | 18 | 17 | 16 | 18 | 17 | 15 | 22 | 23 | 17 | 20 | 18 | 15 | 15 | 15 | 15 | 17 | 16 | 13 |
Feels °C | 20 | 19 | 17 | 16 | 14 | 16 | 16 | 14 | 19 | 19 | 15 | 19 | 16 | 13 | 14 | 14 | 14 | 13 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ESE 8 | ESE 8 | ENE 8 | SE 8 | SE 9 | SE 9 | SE 10 | SE 11 | SE 11 | SE 11 | NE 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 8 |
222 | 212 | 307 | 39 | 589 | 450 | 492 | 500 | 361 | 286 | 191 | 51 | 114 | 149 | 157 | 122 | 90 | 68 | 49 | 364 | |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ENE 8 | ENE 8 | — | — | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 11 | ENE 9 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 13 | S 12 | S 12 | ENE 7 |
137 | 90 | 84 | — | — | 146 | 156 | 119 | 70 | 2 | 65 | 89 | 65 | 35 | 24 | 14 | 29 | 24 | 24 | 21 | |
Swell 3 Height (m) Direction Period (s) | SSE 6 | — | ESE 10 | — | — | — | — | — | S 8 | S 8 | S 10 | ENE 8 | S 9 | S 9 | S 15 | S 14 | ESE 9 | SE 10 | S 10 | E 8 |
22 | — | 10 | — | — | — | — | — | 1 | 1 | 2 | 54 | 2 | 2 | 4 | 16 | 9 | 4 | 2 | 12 | |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 8 | — | — | — | NNE 3 | NNE 4 | NE 5 | NNE 6 | — | SSW 4 | S 5 | S 6 | S 7 | S 8 | S 7 | S 7 | — |
— | — | — | 437 | — | — | — | 3 | 13 | 119 | 87 | — | 11 | 28 | 48 | 62 | 122 | 85 | 142 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 5 | 0 | 0 | 0 | 0 | 17 | 40 | 18 | 5 | 2 | 0 | 17 | 4 | 4 | 0 | 0 | 0 | 17 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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Information about the Ribanceira Surf forecast
The above surf forecast table for Ribanceira provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ribanceira can be found by selecting the local surf guide option on the grey menu. Our Ribanceira 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 (Ribanceira) 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 Ribanceira 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.
Ribanceira is 6 km (4 miles) from Imbituba. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Imbituba. Imbituba has rooms for a wide range of budgets as well as car hire and transport links.











