Surf Forecasts:
Ribanceira surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 12AM (local time) - 8ft (2.4m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 3AM (local time) - 8ft (2.4m), 12s period, S swell with 1,721 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 12AM (local time) - 8ft (2.4m), 12s 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 Tuesday (Aug 11) at 12AM. The primary swell is predicted to be 2.4m and 12s period. The wind is predicted to be cross-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 Tuesday (Aug 11) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 8s period and expected on Monday (Aug 17) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 11th Aug) | 8ft (2.4m) 12s |
| Best Surf | 12AM (Tue 11th Aug) | 8ft (2.4m) 12s |
| Most Powerful | 3AM (Tue 11th Aug) | 8ft (2.4m) 12s |
Table - best surf conditions forecast for Ribanceira over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break down Ribanceira in feet and miles per hour.
First real surf comes Monday afternoon, August 10th. There’s a solid 8ft south swell with a 12-second period, packing a lot of energy (1569). Problem is the 12 mph SSW cross-offshore wind. It’s clean enough, but it’s marginal. Water temp is about 67°, pretty normal for this time of year.
The real standout is Tuesday morning, August 11th. Swell drops a touch to 7ft from the south, period still a nice 12 seconds, but the wind goes glassy – just 3 mph from the SW. That’s the ticket. Expect very clean, glassy waves. The energy is still pumping (1277). This is the best of the early run. Tuesday afternoon gets onshore, so hit the morning.
Wednesday the 12th is a complete loss. Thursday morning the 13th is another winner. Offshore wind from the SW at 3 mph, with 7ft of south swell and a long 14-second period. Energy is huge (1576). That’s a powerful, clean groundswell. Another top pick. Thursday afternoon is glassy and clean too.
Friday the 14th keeps it clean with glassy conditions and 6-6ft SSE swell. Saturday the 15th is smaller, around 4ft, but glassy and fun. Then it goes flat and poor. From Sunday the 16th through most of the month, it’s onshore winds, short-period junk, and very little energy. A few days around the 18th and 19th offer a little clean but weak surf.
The end of the run looks promising. Monday the 24th morning has a solid 7ft south swell with a good 12 mph offshore wind from the SW. That’s clean and powerful (650 energy). Then Tuesday the 25th morning brings a massive 8ft south swell with a very long 16-second period. The energy reading is enormous at 4504 – that’s a serious groundswell. But the wind is onshore from the NE at 6 mph, so it won’t be perfect. At this size, only experts should even think about it. This one is a long-range tickle, but worth watching.
Best of the best: Tuesday morning the 11th and Thursday morning the 13th. Clean, powerful, and glassy. Get on it.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Wed afternoon. Very mild (max 18°C on Thu morning, min 11°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 45mm), heaviest during Sun morning. Warm (max 22°C on Sat afternoon, min 17°C on Thu afternoon). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 12 | S 12 | S 12 | S 12 | S 12 | SSE 12 | S 12 | S 12 | S 14 | S 13 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | S 11 | ESE 8 | ESE 8 | ESE 8 | E 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1569 | 1665 | 1277 | 1122 | 1175 | 1047 | 940 | 537 | 1576 | 1283 | 1211 | 1058 | 1162 | 761 | 390 | 302 | 192 | 206 | 229 | 186 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | on | on | cross-on | cross-on | cross-on | off | glassy | cross-on | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 00:46AM0.52m | 2:48PM0.64m | 1:39AM0.58m | 3:06PM0.65m | 2:24AM0.64m | 3:24PM0.65m | 2:58AM0.68m | 3:44PM0.64m | 3:30AM0.69m | 4:05PM0.61m | 4:01AM0.67m | 4:29PM0.58m | ||||||||
Low Tide | 7:26PM0.18m | 7:21AM-0.05m | 7:59PM0.17m | 8:00AM-0.07m | 8:27PM0.16m | 8:34AM-0.06m | 8:52PM0.17m | 9:05AM-0.03m | 9:16PM0.18m | 9:35AM0.03m | 9:37PM0.18m | 10:07AM0.10m | 9:54PM0.19m | |||||||
 |  |  | |  |  |  | |  | |  |  | | | | | |  | | | |
 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — |
 | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — |
mm | — | — | — | — | — | 2 | 5 | — | — | 3 | 10 | 7 | 5 | 4 | — | — | — | 16 | 7 | — |
Temp °C | 14 | 12 | 14 | 14 | 13 | 13 | 15 | 15 | 18 | 17 | 18 | 19 | 19 | 18 | 21 | 22 | 20 | 20 | 20 | 20 |
Feels °C | 9 | 9 | 13 | 12 | 11 | 11 | 13 | 13 | 18 | 19 | 19 | 22 | 21 | 20 | 23 | 23 | 20 | 22 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | S 12 | S 12 | S 12 | S 12 | SSE 12 | S 12 | S 12 | S 14 | S 13 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | E 8 | ESE 8 | ESE 8 | ESE 8 | E 8 |
| kJ | 30 | 1665 | 1277 | 1122 | 1175 | 1047 | 940 | 537 | 1576 | 1283 | 1211 | 1058 | 1162 | 761 | 390 | 302 | 192 | 206 | 229 | 186 |
Swell 2 Height (m) Direction Period (s) | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | SSE 15 | NE 5 | NE 5 | NE 6 | SE 7 | SE 7 | SE 8 | SE 8 | S 11 | SSE 10 | SSE 10 | S 10 | S 10 |
| kJ | — | 39 | 26 | 12 | 11 | 5 | 5 | 456 | 16 | 12 | 12 | 105 | 75 | 135 | 201 | 297 | 184 | 102 | 100 | 75 |
Swell 3 Height (m) Direction Period (s) | — | — | — | NE 8 | — | — | — | — | — | — | NE 6 | NE 6 | ENE 9 | — | NE 6 | — | — | — | E 13 | E 13 |
| kJ | — | — | — | 16 | — | — | — | — | — | — | 16 | 12 | 8 | — | 18 | — | — | — | 13 | 13 |
Wind waves Height (m) Direction Period (s) | S 12 | — | — | — | — | NNE 3 | NNE 4 | NNE 5 | — | — | — | NNE 6 | NE 6 | NE 4 | N 3 | NNE 4 | NE 4 | NE 6 | NE 6 | NE 7 |
| kJ | 1569 | — | — | — | — | 4 | 24 | 29 | — | — | — | 23 | 22 | 21 | 3 | 24 | 39 | 76 | 64 | 73 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 17 | 0 | 0 | 6 | 2 | 2 | 2 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 5 | 23 | 2 | 2 | 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.
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