
Surf Forecasts:
Barra do Sul surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 6PM (local time) - 7ft (2.2m), 8s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 20 Sep, 6PM (local time) - 7ft (2.2m), 8s period, ENE swell with 659 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 9AM (local time) - 2ft (0.6m), 9s period with SE swell.
Best Forecast Surf Conditions for Barra do Sul this week:
The surf forecast for Barra do Sul over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 9AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Barra do Sul in the next 16 days are 2.2m 8s and forecast to arrive on Sunday (Sep 20) at 6PM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Tue 15th Sep) | 2ft (0.6m) 9s |
| Best Surf | 6PM (Sun 20th Sep) | 7ft (2.2m) 8s |
| Most Powerful | 6PM (Sun 20th Sep) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Barra do Sul over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s coming for Barra do Sul over the next couple of weeks. It’s a mixed bag, with a slow start and a few clear windows if you’re patient.
The surf window starts on Tuesday, 15th September, but it’s a gentle opener. Tuesday morning offers a small 0.6m swell out of the SE, period of 9 seconds, with glassy conditions and light offshore wind. Water temp is 20°, about 0.8° warmer than usual – nothing wild, just a little warmer than average. The combined swell energy is 132, so weak small waves. It’s surfable but very ordinary, and that’s about it before a lull hits.
From Tuesday afternoon through to Saturday the 19th, it’s poor. Winds stay onshore or cross-onshore, and the swell is small or messy. Not worth getting wet. The only break we’ve got is Barra do Sul, an exposed beach break that’s fairly consistent but beginner-friendly. No water temp issues.
Then things turn around. Sunday the 20th of September is the standout. Glassy conditions in the morning with a clean 1.9m ENE swell, 8-second period. Calm wind, then glassy again in the afternoon with a 1.7m ENE swell. Combined energy hits 467 – that’s moderate to strong. For beginners, that 1.9m is pushing it, but for anyone with a bit of experience, it’s a proper surfable size. Swell direction is ENE, slightly off the optimum E, but with glassy winds, it’ll be clean and fun.
Monday the 21st keeps the run going, especially the morning with a 1.4m E swell, 9-second period, and offshore wind from the WNW. Clean, solid energy at 308. Afternoon turns onshore, so hit the dawn session.
After that, the surf backs off. The rest of that week (22nd to 26th) offers tiny waves, mostly under 1m, with glassy mornings but nothing exciting. Crowds at Barra do Sul can show up sometimes, but during this period it’s unlikely to be busy.
The next potential highlight is further out: Sunday the 27th of September sees a 1.6m SE swell with a 9-second period, but the wind is a moderate cross-shore from the SSE at 25 km/h, making it choppy. Combined energy is 398, so there’s power, but the wind ruins it. That afternoon, the period hits 11 seconds and energy jumps to 576, but the cross-wind remains – marginal at best.
The very end of the outlook, Wednesday the 30th of September, brings a clean morning. A tiny 0.7m SE groundswell with a long 13-second period and cross-offshore wind from the WNW. Clean, but small. Energy is strong at 288, but at a beach break, that long period might make it straight and closey. Still, a worthwhile dawn session for the patient surfer.
All in all, the standout is Sunday the 20th of September – glassy, solid 1.9m ENE swell, and the best conditions of the whole 16 days. The long-range stuff on the 30th is promising but less certain, so keep an eye on it.
Stay stoked, Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Very mild (max 19°C on Tue morning, min 15°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 77mm), heaviest during Sat morning. Warm (max 20°C on Sun morning, min 18°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | SE 9 | SE 8 | SE 8 | SSE 7 | SE 9 | SE 10 | SE 9 | SE 11 | SE 12 | ENE 6 | E 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 9 | E 9 | E 9 | E 9 |
Wave Graph | |||||||||||||||||||||
62 | 45 | 80 | 91 | 62 | 85 | 43 | 43 | 35 | 101 | 112 | 161 | 197 | 326 | 509 | 463 | 370 | 393 | 306 | 252 | 219 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | glassy | glassy | glassy | off | on | cross |
High Tide | 4:24PM0.94m | 5:07AM0.98m | 4:43PM0.86m | 5:59AM0.87m | 2:48PM0.78m | 7:19AM0.78m | 2:18PM0.77m | 6:32PM0.68m | 9:19AM0.78m | 1:47PM0.77m | 8:59PM0.67m | 11:07AM0.88m | 10:36PM0.78m | 11:51AM0.99m | 11:31PM0.92m | ||||||
Low Tide | 9:24AM0.31m | 9:33PM0.16m | 9:50AM0.41m | 10:06PM0.22m | 10:18AM0.51m | 10:43PM0.31m | 10:49AM0.63m | 5:54PM0.68m | 11:33PM0.43m | 4:13AM0.52m | 6:00PM0.59m | 5:15AM0.40m | 6:19PM0.51m | 5:53AM0.28m | 6:39PM0.43m | ||||||
6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | |
— | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | |
mm | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 11 | 12 | 7 | 21 | 2 | 11 | 9 | — | — | — |
Temp °C | 19 | 18 | 17 | 16 | 17 | 17 | 18 | 18 | 18 | 18 | 19 | 18 | 18 | 19 | 19 | 20 | 20 | 19 | 27 | 25 | 19 |
Feels °C | 18 | 16 | 16 | 15 | 15 | 15 | 17 | 17 | 17 | 18 | 18 | 17 | 17 | 18 | 19 | 23 | 23 | 22 | 30 | 27 | 21 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 8 | E 7 | SE 7 | SE 9 | E 7 | SE 9 | SE 11 | SE 12 | E 6 | SSE 10 | SSE 9 | SSE 9 | SE 13 | SSE 8 | S 13 | S 13 | E 9 | E 9 | E 9 | E 9 |
62 | 45 | 39 | 43 | 62 | 25 | 43 | 43 | 35 | 50 | 9 | 8 | 8 | 7 | 14 | 3 | 3 | 393 | 306 | 252 | 219 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | SSE 13 | E 7 | E 7 | ESE 12 | E 7 | E 7 | E 7 | SE 10 | ESE 10 | SE 9 | S 14 | SE 13 | SSE 13 | S 8 | S 8 | S 12 | S 10 | S 10 | S 10 |
21 | 33 | 16 | 39 | 39 | 14 | 17 | 17 | 8 | 26 | 18 | 13 | 4 | 7 | 16 | 1 | 1 | 3 | 2 | 2 | 2 | |
Swell 3 Height (m) Direction Period (s) | E 8 | S 11 | — | SSE 12 | E 12 | SE 9 | E 11 | ESE 11 | ESE 11 | ESE 10 | — | — | — | — | — | — | — | — | — | — | S 13 |
49 | 2 | — | 14 | 3 | 3 | 10 | 12 | 11 | 19 | — | — | — | — | — | — | — | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | SE 8 | SSE 7 | — | SE 10 | — | — | ENE 4 | ENE 6 | E 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — |
— | — | 80 | 91 | — | 85 | — | — | 10 | 101 | 112 | 161 | 197 | 326 | 509 | 463 | 370 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 105 | 29 | 19 | 204 | 60 | 0 | 100 | 97 | 100 | 123 | 127 | 105 | 143 | 91 | 0 | 0 | 0 | 0 | 100 | 19 |
Best forecast wave conditions in Santa Catarina - Norte | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Barra do Sul Surf forecast
The above surf forecast table for Barra do Sul provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Barra do Sul can be found by selecting the local surf guide option on the grey menu. Our Barra do Sul 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 (Barra do Sul) 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 Barra do Sul 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.
Barra do Sul is 15 km (9 miles) from Barra Velha. If you plan a holiday in Santa Catarina - Norte, look for hotels and other accommodation in Barra Velha. Barra Velha has rooms for a wide range of budgets as well as car hire and transport links.










