Surf Forecasts:
Barra do Sul surf forecast from 3 Sep 2026:
- Best quality surf: Monday 7 Sep, 12PM (local time) - 5.5ft (1.7m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 3AM (local time) - 8ft (2.4m), 9s period, SSE swell with 979 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 6AM (local time) - 3.5ft (1.1m), 11s 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 Thursday (Sep 03) at 6AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.5m and 8s. Another secondary swell of 0.4m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Barra do Sul in the next 16 days are 2.4m 9s and forecast to arrive on Monday (Sep 07) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Thu 3rd Sep) | 3.5ft (1.1m) 11s |
| Best Surf | 12PM (Mon 7th Sep) | 5.5ft (1.7m) 9s |
| Most Powerful | 3AM (Mon 7th Sep) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Barra do Sul over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what Barra do Sul has got cooking for us over the next couple of weeks.
Right now, the surf is pretty quiet, but things start to move. Our first proper shout comes in on Thursday the 3rd. We've got a clean 4ft swell rolling in from the SE, with a solid 11-second period pushing some moderate energy (300). The wind's a light NNW cross-off, which is just what you want. Expect clean, lined-up waves. This is a decent session for the confident beginner or intermediate.
That Thursday afternoon sees the wind shift, turning things a bit bumpy, and the swell drops off. Friday and Saturday are a write-off with onshore and cross-shore winds chopping up the small swell. We get a stint of small, weak, and messy waves through Sunday, all with energy readings under 130.
Now, keep an eye on Monday the 7th. The morning brings a jump in size to 6ft from the SSE, with a period of 10 seconds and a big jump in energy (758). It's a bit raw, with a light cross-shore breeze, but there's plenty of power. For the experienced surfer, this could be the standout of this first week, especially if the wind holds.
Tuesday the 8th morning is a classic: glassy conditions with a light WSW breeze. The swell is a mere 3ft from the SE (142 energy), so it's small, but that glassy surface makes it incredibly fun on a log. Wednesday the 9th afternoon also goes glassy, with a slightly better 4ft swell from the ESE (251 energy), which would be a treat.
There's a bit of a pulse that gets messy on Thursday the 10th, but then we hit a real gem. Friday the 11th morning: glassy conditions with a NNW wind, and a 5ft swell from the east with a 10-second period and strong energy (474). That's the best combo of the whole outlook. Clean, punchy, and fun for everyone from intermediates up. That is the one to circle.
After that, things get a bit more average. Saturday the 12th and Sunday the 13th have onshore winds. We see a return of glassy conditions on Tuesday the 15th morning with a clean 3ft E swell (335 energy), another good window for the small-wave gear. Wednesday the 16th looks clean with an offshore breeze but drops right off.
The last few days of the outlook are weak and small, with energy dropping into the 40s and 50s. The run of clean, glassy mornings we get is the story here, but nothing beats that Friday the 11th session for quality.
Stay patient, pick your windows, and get on that Friday glass-off.
Rusty.
Short Range ForecastHeavy rain (total 30mm), heaviest during Sat afternoon. Warm (max 21°C on Thu afternoon, min 14°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Sat night. Very mild (max 16°C on Tue morning, min 10°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | ENE 8 | E 8 | E 8 | SE 6 | E 8 | E 8 | SE 10 | SSE 10 | SSE 6 | SE 6 | SE 10 | SE 8 | SE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 344 | 273 | 209 | 147 | 142 | 224 | 118 | 90 | 68 | 69 | 47 | 45 | 341 | 602 | 59 | 61 | 113 | 64 | 91 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-on | cross-off | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross-off | glassy | on | glassy |
High Tide | 6:56AM0.91m | 1:55PM0.69m | 7:05PM0.69m | 8:35AM0.86m | 1:41PM0.78m | 8:40PM0.64m | 10:43AM0.92m | 10:22PM0.69m | 12:02PM1.04m | 11:30PM0.82m | 12:42PM1.14m | 00:16AM0.96m | 1:15PM1.20m | 00:54AM1.09m | |||||
Low Tide | 10:34PM0.32m | 11:02AM0.58m | 4:30PM0.62m | 11:14PM0.39m | 3:54AM0.55m | 5:48PM0.53m | 00:19AM0.49m | 5:15AM0.41m | 6:35PM0.46m | 6:06AM0.26m | 7:11PM0.41m | 6:47AM0.14m | 7:41PM0.39m | 7:21AM0.05m | 8:05PM0.38m | ||||
 |  | |  |  |  |  |  |  |  |  | |  | | | | | | | |
 | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — |
 | 6:01 | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — |
mm | — | — | — | — | — | 1 | 5 | 9 | 15 | 9 | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 20 | 21 | 18 | 18 | 17 | 16 | 15 | 14 | 14 | 15 | 15 | 13 | 12 | 14 | 14 | 16 | 16 | 17 |
Feels °C | 17 | 19 | 20 | 18 | 16 | 16 | 15 | 13 | 12 | 11 | 13 | 13 | 9 | 9 | 11 | 12 | 15 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 11 | ENE 6 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SE 10 | E 8 | SE 10 | SE 10 | SE 8 | SE 8 |
| kJ | 344 | 273 | 209 | 147 | 31 | 79 | 118 | 90 | 68 | 48 | 43 | 45 | 20 | 145 | 12 | 51 | 113 | 64 | 91 |
Swell 2 Height (m) Direction Period (s) | E 9 | ENE 8 | ENE 8 | ENE 5 | ENE 8 | SE 10 | SE 10 | — | SE 10 | SSE 10 | SSE 5 | SSE 10 | E 8 | E 8 | ENE 8 | E 8 | SE 12 | SE 10 | NE 7 |
| kJ | 39 | 24 | 24 | 21 | 20 | 87 | 28 | — | 16 | 10 | 17 | 10 | 20 | 11 | 7 | 10 | 25 | 54 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | ENE 8 | ENE 8 | — | — | — | — | — | SSE 10 | — | — | — | — | SE 14 | E 7 | E 8 | — |
| kJ | — | — | — | 24 | 20 | — | — | — | — | — | 10 | — | — | — | — | 7 | 4 | 10 | — |
Wind waves Height (m) Direction Period (s) | — | NE 4 | NE 4 | NE 5 | SE 11 | SE 11 | SSE 5 | SE 4 | SSE 5 | SE 6 | SSE 5 | SSE 5 | SE 10 | SSE 10 | SSE 6 | SE 6 | — | — | — |
| kJ | — | 3 | 11 | 48 | 142 | 224 | 17 | 23 | 44 | 69 | 47 | 16 | 341 | 602 | 59 | 61 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 21 | 0 | 105 | 0 | 69 | 100 | 29 | 69 | 29 | 97 | 29 | 100 | 91 | 19 | 104 | 0 | 0 | 100 | 0 |
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.
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