Surf Forecasts:
Barra do Sul surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 9PM (local time) - 3.5ft (1.0m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 12AM (local time) - 5ft (1.6m), 10s period, ESE swell with 502 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 9PM (local time) - 2.5ft (0.8m), 8s period with ENE 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 Friday (Sep 11) at 9PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.1m and 11s. Another secondary swell of 0.3m and 3s is also forecast. 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 1.6m 10s and forecast to arrive on Wednesday (Sep 16) at 12AM. 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+) | 9PM (Fri 11th Sep) | 2.5ft (0.8m) 8s |
| Best Surf | 9PM (Mon 14th Sep) | 3.5ft (1.0m) 8s |
| Most Powerful | 12AM (Wed 16th Sep) | 5ft (1.6m) 10s |
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's on the table for Barra do Sul.
Honestly, the first week is a bit of a write-off. We're looking at a lot of small, messy, onshore junk through the 14th. The wind is just all wrong for this spot, and most of that early energy is weak, with the combined energy reading under 100 to start. It's a proper frustrating wait.
The real glimmer in this forecast comes on the 15th. That's when it finally comes together. We've got a clean 4.9ft easterly swell rolling in with a decent 9-second period. The wind goes glassy in the afternoon and offshore in the morning. The combined energy jumps up to a solid 425, telling you there's some proper grunt in the water. That Tuesday, the 15th, is the standout. The water temp is sitting at 67°, which is about average for this time of year, so nothing wild there.
After that, it gets a bit mixed again. Wednesday the 16th sees a bigger bump in energy (571), but the cross-onshore wind chops it up, so it's a pass for me unless you're desperate. There's another little clean window on the 21st (Monday) with some solid energy (257) and offshore wind, but the swell is a bit smaller at 3.3ft.
Looking further out, the 26th of September is a curious one. The morning is dead flat calm with glassy conditions, and a 3.3ft southeast groundswell with a very long 11-second period shows up. The combined energy is a strong 274. That long period stuff can be a bit tricky at a beach break like Barra do Sul—it can make the waves wall up and close out—but if you get a good bank, those glassy conditions will make it a dream. It's a promising one for the end of the run, but with it being two weeks out, keep your fingers crossed.
So, to sum it up: The absolute best bet is the 15th. That's your day. Get on it. The rest of the window has a few other hopeful mornings, but nothing else shines quite as bright. Stay patient.
Short Range ForecastHeavy rain (total 96mm), heaviest during Fri night. Warm (max 21°C on Fri afternoon, min 14°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Mon afternoon. Very mild (max 18°C on Tue afternoon, min 14°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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) | E 8 | E 8 | SE 5 | SE 6 | SSE 7 | SE 5 | SE 8 | ESE 6 | E 7 | E 7 | E 8 | E 9 | E 9 | ESE 10 | ESE 10 | E 9 | E 9 | ESE 9 | E 9 | E 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 57 | 74 | 51 | 112 | 142 | 57 | 60 | 124 | 134 | 121 | 134 | 347 | 348 | 502 | 411 | 207 | 130 | 140 | 101 | 52 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | on | cross-on | cross-off | off | glassy | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 2:40AM1.28m | 3:11PM1.14m | 3:14AM1.25m | 3:37PM1.08m | 3:49AM1.19m | 4:01PM1.01m | 4:26AM1.10m | 4:24PM0.94m | 5:07AM0.98m | 4:43PM0.86m | 5:59AM0.87m | 2:48PM0.78m | ||||||||
Low Tide | 8:03PM0.31m | 8:27AM0.09m | 8:14PM0.24m | 8:41AM0.15m | 8:36PM0.18m | 9:01AM0.22m | 9:03PM0.15m | 9:24AM0.31m | 9:33PM0.16m | 9:50AM0.41m | 10:06PM0.22m | 10:18AM0.51m | 10:43PM0.31m | |||||||
 |  |  |  |  | |  |  | | | |  |  |  |  | |  | | | | |
 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — |
 | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — |
mm | 7 | 17 | 1 | 7 | 9 | 5 | 23 | 23 | 4 | 9 | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 19 | 18 | 16 | 16 | 14 | 15 | 16 | 16 | 16 | 15 | 17 | 18 | 17 | 18 | 17 | 17 | 18 | 18 | 18 |
Feels °C | 23 | 21 | 18 | 13 | 14 | 12 | 14 | 14 | 13 | 15 | 14 | 18 | 19 | 17 | 16 | 15 | 15 | 16 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SE 13 | E 7 | E 7 | E 8 | E 9 | E 9 | ESE 10 | ESE 10 | E 9 | E 9 | ESE 9 | E 9 | E 8 |
| kJ | 57 | 74 | 42 | 44 | 31 | 46 | 46 | 7 | 134 | 121 | 134 | 347 | 348 | 502 | 411 | 207 | 130 | 140 | 101 | 52 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | E 12 | E 12 | E 12 | E 11 | — | E 5 | SE 7 | SE 8 | SE 8 | SE 10 | SSE 10 | S 10 | SSE 13 | SE 12 | SSE 11 | SSE 9 | SSE 12 | SE 11 | SE 7 |
| kJ | 14 | 3 | 3 | 3 | 3 | — | 7 | 19 | 53 | 58 | 108 | 34 | 53 | 16 | 24 | 12 | 29 | 14 | 30 | 11 |
Swell 3 Height (m) Direction Period (s) | E 13 | SE 11 | — | — | — | — | S 16 | SE 9 | SE 11 | ESE 11 | S 11 | S 8 | SSE 11 | — | — | — | SSE 13 | S 12 | SE 7 | SSE 13 |
| kJ | 13 | 5 | — | — | — | — | 5 | 31 | 20 | 12 | 83 | 21 | 24 | — | — | — | 16 | 70 | 2 | 16 |
Wind waves Height (m) Direction Period (s) | — | — | SE 5 | SE 6 | SSE 7 | SE 5 | SE 8 | ESE 6 | — | — | — | — | — | S 10 | SSE 6 | SE 6 | SE 6 | — | — | ENE 4 |
| kJ | — | — | 51 | 112 | 142 | 57 | 60 | 124 | — | — | — | — | — | 54 | 136 | 71 | 43 | — | — | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 19 | 21 | 29 | 204 | 96 | 97 | 100 | 91 | 100 | 30 | 0 | 0 | 0 | 29 | 29 | 112 | 29 | 60 | 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.
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