
Surf Forecasts:
Ribanceira surf forecast from 12 Sep 2026:
- Best quality surf: Monday 14 Sep, 6AM (local time) - 3.5ft (1.1m), 12s period, S swell with offshore winds.
- Most powerful swell: Thursday 17 Sep, 6AM (local time) - 5ft (1.5m), 9s period, S swell with 392 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 9AM (local time) - 4.5ft (1.3m), 6s 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 Saturday (Sep 12) at 9AM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.4m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ribanceira in the next 16 days are 1.5m 9s and forecast to arrive on Thursday (Sep 17) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Tuesday (Sep 15) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 12th Sep) | 4.5ft (1.3m) 6s |
| Best Surf | 6AM (Mon 14th Sep) | 3.5ft (1.1m) 12s |
| Most Powerful | 6AM (Thu 17th Sep) | 5ft (1.5m) 9s |
Table - best surf conditions forecast for Ribanceira over the next 16 days.
The Lowdown
Howdy, Rusty here. Let's check out what's shakin' at Ribanceira. It's a sandbar break, fairly consistent, and it's a sheltered spot. The next 16 days start a bit slow, but there are some rippers on the horizon.
Saturday the 12th, morning, we've got 4ft south swell with a 6-second period. The wind is offshore from the southwest at 12 mph, so it's clean, but that short period means the waves are crumbly. It's rideable but nothing special. The afternoon brings 5ft south swell with an 8-second period, but the wind shifts to cross-offshore from the south-southwest, makin' a mess.
Sunday the 13th is a quiet one. A small 3ft south-southwest swell in the morning with offshore wind, and the afternoon has even smaller 3ft southeast swell. Gentle and clean, but very low energy (173 and 161 units). Monday the 14th morning is the first real good day. A 4ft south swell with a long 11-second period – that's groundswell, baby. Combined energy is 487 units, solid moderate. Winds are light offshore from the west-southwest, keepin' the surface clean. This is a standout: good shape and punch for an intermediate surfer.
Tuesday the 15th morning is glassy with a 3ft south swell at 10 seconds. The wind is from the west at just 3 mph. Dead flat water. It's tiny but pristine. Wednesday the 16th morning is similar – 3ft south swell, 10 seconds, with gentle offshore winds. Clean, small, and cruisy. The rest of the week through Thursday the 17th and Friday the 18th is poor, with onshore winds and rubbish surf.
Then things get serious. Tuesday the 22nd of September morning brings a solid 8ft south swell at 10 seconds, with combined energy at a massive 1,799 units. The wind is cross-offshore from the south-southwest at 9 mph, so it's clean. This is a big, powerful swell over 8ft, so it's for experts only. The waves will be thick and demanding.
The absolute best of the run is Friday the 25th of September, morning. Glassy conditions with a 6ft south-southeast swell rolling in at a very long 12-second period. The energy is strong at 1,061 units. That's a classic long-period groundswell, and for a sandbar, it'll produce long, well-shaped lines. The glassy, near-calm wind will have it lookin' perfect. This is the one to aim for.
Saturday the 26th morning is also strong: 5ft south-southeast swell at 12 seconds with a light offshore wind from the south-southwest. Clean and powerful, but just a notch below the Friday gem.
So yeah, there's a lull in the middle, but the back half of the forecast has some real firepower, with Friday the 25th the clear standout. Water temp is about normal for this time of year.
Keep your eyes on the calendar, boys.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Sun night. Very mild (max 17°C on Sat morning, min 13°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 19°C on Thu afternoon, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 6 | S 7 | SSE 7 | SSW 7 | SE 8 | SE 8 | S 11 | S 10 | S 10 | S 10 | S 10 | S 12 | S 10 | S 10 | S 8 | S 9 | S 8 | S 9 | S 9 | SSE 9 | SSE 9 |
Wave Graph | |||||||||||||||||||||
126 | 269 | 93 | 89 | 81 | 122 | 282 | 247 | 190 | 133 | 133 | 280 | 174 | 118 | 193 | 268 | 109 | 129 | 176 | 138 | 84 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | cross-off | off | off | cross-off | glassy | on | on | cross-on | cross-on | on | glassy |
High Tide | 3:07PM0.62m | 3:10AM0.68m | 3:28PM0.60m | 3:41AM0.66m | 3:50PM0.57m | 4:12AM0.61m | 4:14PM0.54m | 4:51AM0.55m | 4:42PM0.49m | 5:49AM0.48m | 12:12PM0.33m | 00:36AM0.22m | 6:58AM0.44m | 12:24PM0.37m | 6:45PM0.41m | ||||||
Low Tide | 8:44PM0.09m | 9:05AM0.05m | 9:02PM0.09m | 9:26AM0.12m | 9:14PM0.10m | 9:34AM0.19m | 9:14PM0.12m | 9:13AM0.24m | 9:14PM0.15m | 9:04AM0.28m | 12:19PM0.30m | 9:26PM0.18m | 9:08AM0.31m | 1:56PM0.33m | 9:50PM0.23m | ||||||
6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | — | 1 | 3 | 6 | 4 | 2 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 15 | 15 | 14 | 13 | 14 | 14 | 18 | 17 | 15 | 17 | 17 | 15 | 18 | 19 | 15 | 22 | 22 | 18 |
Feels °C | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 14 | 14 | 17 | 15 | 13 | 14 | 13 | 13 | 14 | 15 | 12 | 19 | 20 | 17 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | SSE 7 | SE 7 | SE 8 | SE 8 | S 11 | S 10 | S 10 | E 8 | E 8 | E 8 | S 10 | E 8 | S 8 | S 9 | S 8 | S 9 | S 9 | SSE 9 | NE 6 |
83 | 63 | 93 | 46 | 77 | 122 | 282 | 247 | 190 | 333 | 294 | 157 | 174 | 88 | 193 | 268 | 109 | 129 | 176 | 138 | 44 | |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 8 | SE 9 | ENE 8 | S 10 | S 10 | S 12 | ENE 8 | S 10 | E 9 | E 8 | E 9 | E 8 | ENE 5 | E 8 | SSE 9 |
31 | 8 | 68 | 49 | 67 | 56 | 88 | 126 | 102 | 133 | 133 | 280 | 109 | 118 | 95 | 69 | 74 | 51 | 10 | 12 | 84 | |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | S 10 | SE 11 | SSE 14 | S 12 | ENE 8 | ENE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | S 12 | SE 7 | S 10 | SSE 11 | E 8 | ESE 10 | SE 12 |
11 | 3 | 19 | 5 | 38 | 75 | 47 | 74 | 78 | 54 | 43 | 31 | 14 | 13 | 97 | 2 | 33 | 70 | 22 | 10 | 47 | |
Wind waves Height (m) Direction Period (s) | S 6 | S 7 | S 6 | SSW 7 | S 7 | — | — | — | ENE 7 | — | S 3 | S 6 | S 6 | S 6 | — | — | NE 3 | NE 4 | NNE 4 | NE 5 | SW 2 |
126 | 269 | 84 | 89 | 81 | — | — | — | 70 | — | 5 | 96 | 92 | 100 | — | — | 4 | 31 | 16 | 71 | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 0 | 17 | 0 | 2 | 290 | 30 | 47 | 6 | 0 |
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.










