Surf Forecasts:
Ribanceira surf forecast from 21 Aug 2026:
- Best quality surf: Sunday 23 Aug, 9PM (local time) - 11ft (3.5m), 13s period, S swell with offshore winds.
- Most powerful swell: Sunday 23 Aug, 9PM (local time) - 11ft (3.5m), 13s period, S swell with 3,944 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 9PM (local time) - 10ft (3.0m), 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 3.0m 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 3.5m 13s and forecast to arrive on Sunday (Aug 23) 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 1.9m 7s period and expected on Thursday (Aug 27) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 21st Aug) | 10ft (3.0m) 9s |
| Best Surf | 9PM (Sun 23rd Aug) | 11ft (3.5m) 13s |
| Most Powerful | 9PM (Sun 23rd Aug) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Ribanceira over the next 16 days.
The Lowdown
G'day, Rusty here, and I've been staring at the charts for Ribanceira. We've got a solid run of surf kicking off this Friday morning, but the real magic is tucked away for the dedicated ones. Let's get into it.
The week starts with some surfable waves, but it's nothing to write home about. Friday morning the 21st, we're looking at 4ft SSW groundswell, but with a short period of 7 seconds, it's a bit weak and won't have much push. The wind is offshore from the SW, which keeps the faces clean, but the wave energy is pretty ordinary, clocking in at 188 (weak). The water temp is sitting at 66°, which is about average for this time of year, so nothing unusual there.
Saturday the 22nd is a step up. The morning brings in 8ft S swell, with a moderate offshore wind from the SW. The energy jumps to 923 (moderate), and you'll find some fun, clean walls. Saturday afternoon is a bit messy with a cross-offshore wind, but the morning window is the pick of the day.
Now, Sunday the 23rd is where we see it coming together. The morning has 6ft S swell with a longer 12-second period, and a light offshore breeze from the SW – that's clean, lined-up surf. The energy reads 988 (moderate). The afternoon gets even better: 7ft S swell, same long period, and the wind is only a gentle cross-off. Energy hits 1392 (strong), meaning there's some proper grunt in the water. This is the best of the weekend.
But the standout, the one you've been waiting for, is Monday the 24th. The morning session is absolute perfection for experienced surfers. We've got a 10ft S swell – that's solid, big, and powerful – with a 16-second period, which is a very long groundswell. The wind is glassy. Zero. Nada. The combined energy is a massive 3769 (very strong). This is not for beginners, this is for the crew who know what they're doing. A swell this long and this big will be lining up beautifully, but it's a lot of water moving. After Monday afternoon, the conditions deteriorate with some onshore and cross-shore winds through the rest of the week, and the swell drops right off.
From Tuesday the 25th through to the end of the month, it's a long, quiet stretch. The swell bottoms out, with some days barely having any rideable waves. There's a brief flicker on the morning of Tuesday the 1st of September, with 3ft E swell and glassy conditions (energy a weak 116), but it's small and ordinary.
Then, look here – Wednesday the 2nd of September sees a new pulse. The morning brings 7ft S swell, with a short 8-second period, but with a clean offshore wind from the WSW. The energy is 585 (moderate). The afternoon is similar at 8ft with a light cross-off. It's a return of cleaner surf after the long flat spell, but with that short period, don't expect the same quality as the Monday stand-out. After that, it's back into onshore wind and poor conditions for the rest of the outlook.
The absolute best on offer is Monday the 24th of August's morning at Ribanceira. It's the one. For the rest of us, Sunday the 23rd afternoon and Saturday the 22nd morning are your best bets.
Stay safe out there.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Fri afternoon, min 9°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Thu morning, min 11°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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) | SSW 9 | S 9 | S 10 | S 10 | S 10 | S 11 | S 12 | S 14 | S 15 | S 14 | S 14 | S 13 | S 12 | SSE 13 | SSE 12 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 12 |
Wave Graph | ||||||||||||||||||||
547 | 1112 | 943 | 799 | 635 | 922 | 1392 | 3297 | 3631 | 3071 | 1951 | 1191 | 1004 | 1423 | 834 | 1336 | 922 | 596 | 454 | 255 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | glassy | off | cross-off | off | off | cross | glassy | cross-on | on | cross-on | on | on | on | on | on | cross-on |
High Tide | 8:07PM0.39m | 12:21PM0.42m | 10:23PM0.39m | 12:07PM0.46m | 11:27PM0.45m | 12:34PM0.51m | 00:07AM0.52m | 1:15PM0.56m | 00:48AM0.58m | 1:57PM0.61m | 1:34AM0.63m | 2:30PM0.65m | 2:16AM0.67m | |||||||
Low Tide | 4:25PM0.28m | 4:23AM0.16m | 12:13PM0.39m | 5:06AM0.11m | 5:41PM0.20m | 5:48AM0.06m | 6:24PM0.17m | 6:33AM0.02m | 7:05PM0.14m | 7:16AM-0.02m | 7:40PM0.12m | 7:51AM-0.04m | 8:09PM0.11m | |||||||
— | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | |
5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 14 | 14 | 13 | 11 | 14 | 14 | 12 | 14 | 13 | 12 | 16 | 17 | 14 | 18 | 18 | 18 | 23 | 24 | 19 |
Feels °C | 13 | 10 | 10 | 9 | 9 | 11 | 11 | 9 | 12 | 11 | 11 | 13 | 14 | 12 | 16 | 16 | 17 | 20 | 21 | 18 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | ENE 9 | S 10 | S 11 | S 12 | S 14 | S 15 | S 14 | S 14 | S 13 | S 12 | SSE 13 | SSE 12 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 12 |
59 | 35 | 40 | 43 | 635 | 922 | 1392 | 3297 | 3631 | 3071 | 1951 | 1191 | 1004 | 1423 | 834 | 1336 | 922 | 596 | 454 | 255 | |
Swell 2 Height (m) Direction Period (s) | E 11 | — | — | — | ENE 8 | NE 8 | NE 8 | ENE 7 | — | — | — | SSE 16 | SSE 16 | — | SE 15 | SSE 15 | — | ENE 7 | — | — |
2 | — | — | — | 28 | 17 | 15 | 5 | — | — | — | 339 | 447 | — | 344 | 377 | — | 60 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | NE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SSW 9 | S 9 | S 10 | S 10 | — | — | — | — | — | — | — | — | NE 3 | NNE 4 | NNE 4 | NE 4 | NE 6 | NE 7 | NE 7 | NE 7 |
547 | 1112 | 943 | 799 | — | — | — | — | — | — | — | — | 6 | 9 | 9 | 45 | 146 | 114 | 312 | 284 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 93 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 2 | 6 | 2 | 5 | 6 | 6 | 5 | 448 | 70 |
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.











