Surf Forecasts:
Ribanceira surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 20 Aug, 12PM (local time) - 3.5ft (1.1m), 9s period, S swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 12AM (local time) - 10ft (3.0m), 13s period, SSE swell with 2,581 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 12PM (local time) - 3.5ft (1.1m), 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 Thursday (Aug 20) at 12PM. The primary swell is predicted to be 1.1m and 9s 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 3.0m 13s and forecast to arrive on Friday (Aug 14) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Monday (Aug 17) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Thu 20th Aug) | 3.5ft (1.1m) 9s |
| Best Surf | 12PM (Thu 20th Aug) | 3.5ft (1.1m) 9s |
| Most Powerful | 12AM (Fri 14th Aug) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Ribanceira over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a mixed bag on the cards for Ribanceira over the next couple of weeks, but there’s definitely a couple of sessions worth circling on the calendar.
The opening look sees a decent pulse of energy rolling in for Thursday 13 August. The morning at Ribanceira (sandbar) will have a solid 7ft south swell, with a period of 14 seconds – proper groundswell that’ll wrap in nicely. The wind is light and straight offshore, so you’re looking at glassy, clean lines. The combined energy is pumping hard at 1576, which tells you there’s plenty of grunt in the water. Water temp sits at 66°, pretty much average for this time of year. This is the standout of the whole run – get out there if you can. It’s an intermediate-friendly wave at this size.
Thursday afternoon holds that clean quality too, still with offshore breezes and swell around 6ft from the south. The crowd factor is listed as “sometimes,” but with conditions this good, expect a few locals to be on the ball.
Come Friday morning 14 August, the wind swings easterly and pushes cross-onshore, and the clarity starts to fade. The swell stays solid enough at 6ft from the SSE, but the wind will crinkle up the surface. The energy sits at 1460, so there’s still push in the water, but it’s less of a clean wave than Thursday. Afternoon turns worse, with stronger cross-onshore wind and choppier conditions.
Saturday 15 August starts with a smaller 4ft south swell, light cross-on wind. Not terrible, but far from the Thursday quality. By the afternoon it gets messy, with onshore wind and short, weak 8-second period waves. Not your session.
From Sunday 16 August right through to Wednesday 20 August, the surf really goes quiet and poor. Swell heights drop below 3ft for several days, with onshore winds and very low energy readings. There’s a real gap here with nothing worth paddling out for – a dry spell of nearly a week.
Things start to perk up again on Friday 21 August. Morning shows a cleaner picture with a 7ft south swell and offshore wind from the WSW – gentle offshore and clean lines. The energy is moderate at 471, and though the period is only 8 seconds, the offshore wind will tidy it up. This is a decent session, but not quite the standout Thursday was. Conditions hold into Saturday 22 August morning with glassy 5ft south swell, calm winds and 503 energy – a very clean, user-friendly morning.
Late on Sunday 23 August through into Monday 24 August is where the next real highlight lands. Sunday afternoon has a clean 5ft south swell with 12-second period and light cross-offshore wind, energy at 726. Come Monday morning, that builds to a 6ft south swell, still clean with only a slight air moving, and energy jumps to 1114. Monday afternoon pushes it even further – 7ft south swell, 13-second period, light cross-offshore breeze and the energy roaring at 1440. This ranks as very good conditions and is a prime pick for that week. By Tuesday 25 August, it’s still solid – morning has 5ft swell with cross-offshore wind and very high energy at 1122, but the afternoon sees the swell hit 8ft from the south, which pushes it into expert territory. Winds go cross-onshore and it’s a bit rougher on the surface, so aim for the morning there if you’re skilled.
The final week from Wednesday 26 August onwards gets more inconsistent, with swells hanging around but winds turning increasingly onshore and periods getting jumbled. There’s a shot on Friday 28 August morning: a small 4ft SSE swell with light offshore wind, but energy is low at 334, and the conditions are described as very ordinary – surfable but nothing special.
Bottom line: Thursday 13 August is your absolute standout – world-class combination of size, period, and wind. Then circle Sunday 23 and Monday 24 August for the next real clean run, especially Monday morning and afternoon. The rest is wind-affected or flat. Crowds are possible at times, but with this forecast, you’ll find plenty of waves if you pick your windows.
Stay frothy.
Rusty.
Short Range ForecastHeavy rain (total 63mm), heaviest during Thu afternoon. Very mild (max 19°C on Sat morning, min 16°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 32°C on Tue afternoon, min 18°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | E 8 | E 8 | E 8 | SSE 10 | SSE 10 | S 10 | SSE 10 | SSE 10 | SSE 11 | S 10 | S 10 | S 9 | S 9 | S 9 | N 4 |
Wave Graph | ||||||||||||||||||||
1303 | 2581 | 1127 | 1568 | 890 | 487 | 523 | 336 | 112 | 108 | 51 | 33 | 20 | 22 | 17 | 7 | 6 | 6 | 7 | 24 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross-on | on | cross-on | on | on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | glassy | off | cross-off | off |
High Tide | 3:24PM0.65m | 2:58AM0.68m | 3:44PM0.64m | 3:30AM0.69m | 4:05PM0.61m | 4:01AM0.67m | 4:29PM0.58m | 4:36AM0.63m | 4:56PM0.54m | 5:22AM0.56m | 5:34PM0.49m | 00:07AM0.22m | 6:24AM0.50m | 6:24PM0.45m | ||||||
Low Tide | 8:52PM0.17m | 9:05AM-0.03m | 9:16PM0.18m | 9:35AM0.03m | 9:37PM0.18m | 10:07AM0.10m | 9:54PM0.19m | 10:53AM0.18m | 9:49PM0.20m | 11:51AM0.24m | 9:43PM0.20m | 9:36AM0.29m | 12:35PM0.29m | 10:01PM0.21m | ||||||
— | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | |
5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | |
mm | 13 | 11 | 4 | 6 | 18 | 5 | 3 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 17 | 17 | 17 | 17 | 17 | 19 | 18 | 18 | 19 | 19 | 19 | 24 | 24 | 19 | 31 | 32 | 23 | 25 | 23 | 19 |
Feels °C | 17 | 17 | 17 | 17 | 16 | 19 | 17 | 16 | 18 | 18 | 17 | 23 | 23 | 19 | 30 | 31 | 25 | 25 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | S 13 | SSE 8 | SSE 13 | SSE 13 | SSE 12 | E 8 | S 11 | E 8 | SSE 10 | SSE 10 | S 10 | SSE 10 | SSE 10 | ENE 9 | ENE 9 | S 10 | ENE 9 | ENE 8 | S 9 | ENE 8 |
1303 | 430 | 1127 | 1568 | 890 | 487 | 302 | 336 | 112 | 108 | 51 | 33 | 20 | 575 | 500 | 7 | 381 | 255 | 6 | 197 | |
Swell 2 Height (m) Direction Period (s) | ENE 5 | S 13 | — | SE 7 | — | S 12 | S 11 | SSE 11 | E 14 | — | — | — | SE 9 | SSE 11 | S 10 | — | S 9 | S 9 | SE 13 | S 7 |
10 | 713 | — | 97 | — | 456 | 411 | 194 | 15 | — | — | — | 3 | 22 | 17 | — | 6 | 6 | 7 | 15 | |
Swell 3 Height (m) Direction Period (s) | — | NE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 8 | SE 12 | — | S 10 |
— | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 6 | — | 7 | |
Wind waves Height (m) Direction Period (s) | SW 3 | SSE 13 | ESE 7 | E 6 | E 7 | — | E 8 | NNE 5 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 9 | NE 9 | ENE 9 | — | — | ENE 8 | N 4 |
5 | 2581 | 307 | 141 | 470 | — | 523 | 80 | 597 | 560 | 597 | 573 | 733 | 711 | 671 | 528 | — | — | 254 | 24 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 6 | 5 | 5 | 86 | 5 | 5 | 18 | 5 | 5 | 290 | 70 | 5 | 18 | 70 | 18 | 4 | 4 | 17 | 4 |
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.











