Surf Forecasts:
Ribanceira surf forecast from 17 Aug 2026:
- Best quality surf: Monday 24 Aug, 12AM (local time) - 8ft (2.4m), 12s period, S swell with offshore winds.
- Most powerful swell: Monday 24 Aug, 12AM (local time) - 8ft (2.4m), 12s period, S swell with 1,530 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 9PM (local time) - 6ft (1.9m), 9s period with S 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 Friday (Aug 21) at 9PM. The primary swell is predicted to be 1.9m and 9s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ribanceira in the next 16 days are 2.4m 12s and forecast to arrive on Monday (Aug 24) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Tuesday (Aug 18) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 21st Aug) | 6ft (1.9m) 9s |
| Best Surf | 12AM (Mon 24th Aug) | 8ft (2.4m) 12s |
| Most Powerful | 12AM (Mon 24th Aug) | 8ft (2.4m) 12s |
Table - best surf conditions forecast for Ribanceira over the next 16 days.
The Lowdown
Alright, grab your board and let’s have a look at what’s coming up for Ribanceira.
Right now, it’s a quiet start. The first few days are pretty flat and messy, with poor surf conditions and barely any energy in the water. Monday the 17th and Tuesday the 18th are a write-off – tiny waves, onshore winds, no real power. The combined energy is weak (102 or less), so don’t even bother paddling out. Wednesday the 19th shows a bit of a cleaner look with light cross-off winds, but the swell is still only 1 ft to 2 ft – not enough to get excited about.
The story starts to change around Saturday the 22nd. Early that morning the swell picks up to 5 ft with a light offshore wind, and the combined energy jumps to 394 – still moderate, but you can feel it’s trying. The real turning point comes Sunday the 23rd. The morning is glassy, with a 6 ft south swell, 11-second period, and the energy is a solid 714. That’s the first proper surfable day. Monday the 24th is the standout – the morning has 7 ft south swell, clean offshore wind, and the combined energy is 1212. By Monday afternoon it’s 8 ft, still clean, but that’s getting into expert territory. The water temperature is 65°, which is normal for this time of year – no surprises there.
After that, the surf drops off again. Tuesday the 25th is messy with onshore winds, and the rest of the week struggles to get clean. There’s a promising window late in the forecast, on Monday the 31st. The morning of the 31st has a glassy 6 ft swell from the SSE with a very long 14-second period, and the combined energy is 1515 – that’s strong. The long period means better-shaped waves, but at a beach break like Ribanceira, it might break a bit straight. Still, if the wind holds, that’s the best option in the second week.
Bottom line: if you want the best waves, aim for Sunday the 23rd through Monday the 24th. That’s your window. After that, the 31st is worth a look but keep an eye on the wind.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Tue morning, min 17°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Thu morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | S 10 | SSE 10 | S 11 | S 10 | S 10 | S 9 | SSW 4 | S 8 | S 7 | S 10 | S 9 | S 8 | SSW 8 | SSW 8 | SSW 9 | S 9 | S 8 | S 9 | S 11 | S 11 | S 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 51 | 19 | 9 | 8 | 8 | 6 | 3 | 41 | 44 | 117 | 56 | 34 | 20 | 196 | 632 | 390 | 338 | 503 | 714 | 875 | 1530 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | glassy | off | cross-off | cross-off | cross-on | on | on | glassy | off | cross-off | off | off | cross-off | off | glassy | cross-off | off |
High Tide | 4:56PM0.54m | 5:22AM0.56m | 5:34PM0.49m | 00:07AM0.22m | 6:24AM0.50m | 6:24PM0.45m | 7:19AM0.45m | 12:30PM0.36m | 7:12PM0.42m | 8:18AM0.40m | 1:10PM0.39m | 8:07PM0.39m | 12:21PM0.42m | 10:23PM0.39m | 12:07PM0.46m | 11:27PM0.45m | |||||
Low Tide | 10:53AM0.18m | 9:49PM0.20m | 11:51AM0.24m | 9:43PM0.20m | 9:36AM0.29m | 12:35PM0.29m | 10:01PM0.21m | 9:36AM0.32m | 3:01PM0.32m | 3:13AM0.21m | 4:25PM0.28m | 4:23AM0.16m | 12:13PM0.39m | 5:06AM0.11m | 5:41PM0.20m | ||||||
 | |  | | |  |  | | | | | | | | | |  | | | | | |
 | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — |
 | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 20 | 31 | 31 | 21 | 22 | 21 | 18 | 26 | 26 | 21 | 20 | 18 | 15 | 16 | 14 | 13 | 14 | 13 | 13 |
Feels °C | 22 | 23 | 19 | 30 | 33 | 22 | 24 | 22 | 20 | 24 | 25 | 23 | 16 | 14 | 12 | 12 | 10 | 10 | 13 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | S 10 | SSE 10 | S 11 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | S 10 | S 9 | ENE 7 | ENE 7 | ENE 8 | S 8 | S 9 | ENE 9 | S 9 | S 11 | S 11 | S 12 |
| kJ | 51 | 19 | 9 | 356 | 365 | 261 | 161 | 119 | 107 | 117 | 56 | 114 | 118 | 176 | 415 | 390 | 92 | 503 | 714 | 875 | 1164 |
Swell 2 Height (m) Direction Period (s) | S 10 | SE 8 | SE 8 | S 10 | S 10 | S 9 | SSW 4 | S 8 | S 7 | SE 12 | SE 6 | S 8 | SSW 8 | — | ENE 9 | ENE 9 | SSE 14 | S 11 | ENE 8 | ENE 8 | NE 8 |
| kJ | 51 | 3 | 3 | 8 | 8 | 6 | 3 | 41 | 44 | 6 | 5 | 34 | 20 | — | 180 | 101 | 37 | 305 | 26 | 25 | 16 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 8 | — | E 13 | S 9 | SE 13 | S 11 | SE 12 | SE 12 | SE 6 | SSW 3 | — | — | S 14 | — | ENE 9 | — | — | — |
| kJ | — | — | — | 3 | — | 4 | 2 | 7 | 21 | 6 | 6 | 5 | 2 | — | — | 4 | — | 50 | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 8 | NE 8 | NE 8 | NE 8 | NE 8 | SSW 4 | SW 4 | — | — | NE 8 | NE 8 | — | SW 4 | SSW 8 | SSW 9 | — | S 8 | — | — | — | S 12 |
| kJ | 476 | 557 | 498 | 542 | 530 | 8 | 3 | — | — | 169 | 200 | — | 12 | 196 | 632 | — | 338 | — | — | — | 1530 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 111 | 121 | 111 | 18 | 4 | 4 | 4 | 4 | 6 | 5 | 5 | 4 | 4 | 17 | 0 | 0 | 17 | 0 | 0 | 0 | 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.
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