Surf Forecasts:
Ribanceira surf forecast from 21 Aug 2026:
- Best quality surf: Sunday 23 Aug, 6PM (local time) - 8ft (2.5m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 9AM (local time) - 10ft (3.0m), 16s period, S swell with 4,142 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 9AM (local time) - 4ft (1.2m), 7s period with SSW 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 9AM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 0.1m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ribanceira in the next 16 days are 3.0m 16s and forecast to arrive on Monday (Aug 24) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Friday (Aug 28) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Fri 21st Aug) | 4ft (1.2m) 7s |
| Best Surf | 6PM (Sun 23rd Aug) | 8ft (2.5m) 12s |
| Most Powerful | 9AM (Mon 24th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Ribanceira over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cooking at Ribanceira over the next couple of weeks.
We’ve got a solid run of swell coming through, but it’s a bit of a mixed bag with the wind. The real standout is shaping up for Monday the 24th of August, and that’s the one you want to circle. The water’s sitting at 66° right now, which is pretty much bang on average for this time of year, so no surprises there.
The first decent surf hits Friday morning the 21st. It’s only 4ft from the SSW with a short 7-second period, so nothing to write home about, but the wind is light offshore from the SW, making it clean. The energy is weak (166), so it’s just a knee-slapper to get the rust off.
Saturday the 22nd is a step up. Morning brings 7ft from the S with a 10-second period, and clean offshore wind from the SW. The energy jumps to moderate (864). Afternoon holds 8ft from the S, still 10 seconds, but a cross-off wind from the S keeps it clean. This is a solid weekend session.
Sunday the 23rd – morning glass-off with SW wind at just 3 mph, 6ft from the S and an 11-second period. Clean as a whistle. The energy is moderate (922). Afternoon gets even better: 7ft from the S, 12-second period, cross-off from the SSE, and the energy is up to 1269. This is very good surf.
Now, Monday the 24th of August. This is the one. Morning session: 10ft from the S, a 16-second period – that’s a proper groundswell. The energy is a massive 5069, which is strong. The wind is glassy from the WSW at just 3 mph. This is excellent surf, but at 10ft, it’s for experienced surfers only. The long period means it’ll be a bit walled at the sandbar, but the power and the clean conditions will be unreal. The afternoon drops to 8ft with a 14-second period, but the wind goes cross-shore from the SE, making it tricky.
From Tuesday the 25th, things start to fall apart. Onshore winds from the NNE and NE kick in, and the swell drops. The energy is still moderate (1335 on Tuesday morning), but the wind is junk. Wednesday the 26th and Thursday the 27th are a write-off with onshore and cross-onshore winds and choppy conditions.
The surf fades out completely from Friday the 28th of August onward. We get a tiny pulse of 2ft on Friday morning with a light offshore, but it’s weak. After that, it’s flat as a pancake. From the 29th of August all the way through to the 5th of September, the swell is below 3ft, with poor winds and no energy to speak of. There’s a gap of about eight days with no worthwhile surf until the very end of the run, where we see a 6ft pulse on the 5th of September, but it’s coming with onshore wind and a poor rating.
So, to sum it up: the best bet is the Monday the 24th of August morning session at Ribanceira. It’s a standout. The Sunday the 23rd afternoon is also a cracker. After that, it’s a long wait for the next one.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Fri morning, min 9°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Tue afternoon, min 11°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | SSW 7 | S 8 | S 9 | S 10 | S 10 | S 10 | S 11 | S 12 | S 14 | S 16 | S 14 | S 14 | S 13 | S 12 | SSE 16 | SSE 14 | SSE 13 | SSE 14 | SSE 13 | SSE 13 | SSE 12 |
Wave Graph | |||||||||||||||||||||
160 | 576 | 1225 | 864 | 1070 | 661 | 922 | 1269 | 2961 | 4142 | 2853 | 1788 | 1335 | 988 | 768 | 1333 | 816 | 1127 | 745 | 528 | 260 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | glassy | off | cross-off | off | off | cross | glassy | on | on | cross-on | on | on | on | cross-on | on | cross-on |
High Tide | 1:10PM0.39m | 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 | 9:34AM0.35m | 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 | — | — | 6:39 | — | — | 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 | 20 | 18 | 14 | 14 | 12 | 11 | 14 | 14 | 12 | 13 | 13 | 12 | 16 | 18 | 14 | 18 | 18 | 18 | 24 | 24 | 19 |
Feels °C | 17 | 13 | 10 | 10 | 8 | 9 | 11 | 10 | 9 | 11 | 10 | 11 | 13 | 14 | 11 | 17 | 17 | 17 | 21 | 21 | 17 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | S 10 | S 10 | S 11 | S 12 | S 14 | S 16 | S 14 | S 14 | S 13 | S 12 | S 12 | SSE 14 | SSE 13 | SSE 14 | SSE 13 | SSE 13 | SSE 12 |
54 | 59 | 35 | 39 | 725 | 661 | 922 | 1269 | 2961 | 4142 | 2853 | 1788 | 1335 | 988 | 625 | 1333 | 816 | 1127 | 745 | 528 | 260 | |
Swell 2 Height (m) Direction Period (s) | E 11 | — | — | — | ENE 9 | ENE 8 | NE 8 | NE 8 | ENE 7 | SSE 16 | — | — | — | SSE 16 | SSE 16 | — | SE 16 | — | — | — | — |
2 | — | — | — | 43 | 28 | 16 | 15 | 5 | 927 | — | — | — | 215 | 768 | — | 471 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | S 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SSW 7 | S 8 | S 9 | S 10 | S 10 | — | — | — | — | — | — | — | — | NE 3 | NE 4 | NE 4 | NE 5 | NE 6 | NE 7 | NE 7 | NE 7 |
160 | 576 | 1225 | 864 | 1070 | — | — | — | — | — | — | — | — | 5 | 10 | 18 | 66 | 172 | 183 | 298 | 263 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 93 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 2 | 6 | 30 | 6 | 5 | 5 | 47 | 121 | 30 |
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.











