Surf Forecasts:
Ribanceira surf forecast from 18 Aug 2026:
- Best quality surf: Monday 24 Aug, 6AM (local time) - 8ft (2.5m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 9AM (local time) - 8ft (2.5m), 14s period, S swell with 2,742 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 9PM (local time) - 8ft (2.5m), 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 2.5m 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 2.5m 14s and forecast to arrive on Monday (Aug 24) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Tuesday (Aug 18) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 21st Aug) | 8ft (2.5m) 9s |
| Best Surf | 6AM (Mon 24th Aug) | 8ft (2.5m) 14s |
| Most Powerful | 9AM (Mon 24th Aug) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Ribanceira over the next 16 days.
The Lowdown
Alright, Rusty here, lookin' at what we've got cookin' for the next couple of weeks. It's a bit of a slow start, but don't you worry, there's some real juice coming our way if you can wait it out.
The first few days are pretty much a write-off. We're talking Tuesday the 18th through to most of Friday the 21st – just weak, small dribble and funky winds spoiling it. You'd be wasting your time paddling out.
Things start to get interesting from Saturday the 22nd. That morning, we get a proper SSW offshore at Ribanceira, with a solid 7ft swell from the south. The combined energy is a solid moderate 609, and with that clean offshore breeze, it's gonna be well-shaped. This is the first real highlight. It's still a bit strong for the beginners at that size, but for the intermediates and above, Saturday morning is game on. That swell holds through Sunday the 23rd with early light SSW offshore winds again. The swell drops a fraction to 6ft, but the period stretches out to 10 seconds and the energy is up to 780 – a real nice, clean groundswell.
But the real standout, the one you absolutely circle on the calendar, is Monday the 24th. That morning, Ribanceira is looking world-class. We've got a 8ft, 14-second period south swell dumping in with a combined energy of 2742 – that's a strong, powerful groundswell. The wind is a light glassy WSW offshore, so it's gonna be absolutely clean and lined up. This is expert territory for sure, it's going to be big and powerful. The break is a sandbar that's fairly consistent, but be warned, crowds are a possibility.
We then get a bit of a lull after that big Monday. Tuesday the 25th gets messy with strong onshore winds, and we drift into smaller, weaker surf with a mix of onshore and cross-onshore winds for a few days. The end of the month shows some promise, but it's further out so less certain. Saturday the 30th of August looks like a decent pickup with a 5ft SE swell and clean, light cross-off winds in the morning, and even glassy conditions in the afternoon. Energy is a moderate 452, so it's a good option for some fun, user-friendly waves if the big Monday doesn't work out. The water temp is a pretty normal 66° for this time of year, so grab a spring suit.
So to wrap it up: wait through the flat, early-week rubbish for a cracking Saturday morning session, but keep all your focus on Monday the 24th. That's the one.
- Rusty
Short Range ForecastMostly dry. Warm (max 34°C on Tue afternoon, min 17°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Fri morning, min 9°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 | N 4 | S 9 | SE 12 | S 8 | S 10 | S 9 | S 9 | N 4 | SSW 8 | S 7 | S 9 | S 9 | S 8 | S 9 | S 10 | S 11 | S 12 | S 14 | S 13 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 32 | 6 | 6 | 1 | 33 | 104 | 71 | 28 | 19 | 311 | 1112 | 609 | 555 | 594 | 780 | 843 | 1447 | 2742 | 2436 | 1659 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | off | cross-off | cross-off | on | on | on | cross-on | off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-on | cross-on |
High Tide | 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 | 12:34PM0.51m | 00:07AM0.52m | |||||
Low Tide | 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 | 5:48AM0.06m | 6:24PM0.17m | ||||||
 | |  |  | | | | | | | | |  | |  | | | | | | | |
 | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — |
 | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 32 | 34 | 22 | 20 | 20 | 18 | 22 | 23 | 20 | 20 | 18 | 14 | 14 | 13 | 12 | 14 | 13 | 11 | 14 | 14 | 12 |
Feels °C | 31 | 34 | 23 | 21 | 21 | 20 | 20 | 21 | 19 | 16 | 14 | 10 | 9 | 8 | 8 | 12 | 10 | 8 | 12 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 9 | NE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | S 9 | S 10 | S 11 | S 12 | S 14 | S 13 | S 13 |
| kJ | 403 | 343 | 261 | 161 | 116 | 99 | 110 | 71 | 116 | 102 | 123 | 101 | 65 | 71 | 594 | 780 | 843 | 1447 | 2742 | 2436 | 1659 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | S 9 | S 8 | S 7 | S 9 | SE 12 | SSW 8 | SSW 8 | — | — | — | S 14 | S 12 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 7 | NE 7 |
| kJ | 8 | 8 | 6 | 2 | 1 | 24 | 104 | 6 | 22 | 19 | — | — | — | 15 | 144 | 17 | 16 | 6 | 6 | 5 | 2 |
Swell 3 Height (m) Direction Period (s) | — | SE 8 | E 13 | SE 12 | S 7 | S 10 | SE 12 | SE 12 | SE 6 | SSW 3 | — | — | — | — | ENE 9 | — | — | — | — | — | — |
| kJ | — | 3 | 3 | 6 | 1 | 33 | 6 | 5 | 1 | 2 | — | — | — | — | 30 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 8 | N 4 | SW 3 | SSW 3 | SSW 3 | — | NNE 3 | NE 7 | N 4 | SW 3 | S 7 | S 9 | S 9 | S 8 | — | — | — | — | — | — | NNE 7 |
| kJ | 555 | 32 | 3 | 2 | 1 | — | 4 | 199 | 28 | 4 | 311 | 1112 | 609 | 555 | — | — | — | — | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 5 | 4 | 4 | 4 | 6 | 2 | 5 | 9 | 4 | 88 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 6 | 2 |
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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