Surf Forecasts:
Barra do Sul surf forecast from 1 Sep 2026:
- Best quality surf: Thursday 3 Sep, 6AM (local time) - 3.5ft (1.1m), 10s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 12AM (local time) - 7ft (2.1m), 8s period, SSE swell with 555 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 6AM (local time) - 2.5ft (0.7m), 8s 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 01) at 6AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.6m 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 2.1m 8s and forecast to arrive on Wednesday (Sep 02) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Tuesday (Sep 01) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 1st Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 6AM (Thu 3rd Sep) | 3.5ft (1.1m) 10s |
| Most Powerful | 12AM (Wed 2nd Sep) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Barra do Sul over the next 16 days.
The Lowdown
Alright, Rusty here, lookin' at the charts for Barra do Sul. The next couple of weeks are a bit of a mixed bag, to be honest. We've got some small windows of opportunity, but you'll have to pick your moments. The surf kicks off right away, but then there's a lull, and the real quality doesn't show up until we're well into the second week.
First up, Tuesday morning, September 1st. We've got some tiny 3ft waves from the ESE with a short 8-second period, and the combined swell energy is pretty weak at 126. The saving grace is that it's glassy, dead calm wind. You could get a few crumbly ones on a log, but it's not going to set the world on fire. That afternoon, the wind swings onshore and picks up to 15 mph, so it's game over.
Wednesday the 2nd is a write-off with onshore wind and messy conditions, and it stays pretty ordinary for days. There's a solid gap here with nothing worth paddling out for.
Thursday morning the 3rd, we get a little glimmer. The swell is a clean 3ft from the SE with a longer 11-second period, giving it a bit more punch (combined energy 254). The wind goes glassy from the WNW, so it would be clean as a whistle. It’s small, but for a quiet morning slide at Barra do Sul, it might be the best on offer in this first week.
After that, it's back to small, choppy, rainy junk until we get to the 10th.
Now, here's where it gets interesting. Thursday the 10th of September is the standout. The morning starts building, with 5ft from the ENE and a nice offshore wind from the WSW (combined energy 312). That’s good, but the afternoon is the real deal. We’re looking at a solid 7ft swell from the ENE, 8-second period, and it's glassy with no wind. The combined swell energy jumps to 1019, which is strong and powerful. For experienced surfers, this is going to be excellent. That's the best session in the whole 16-day run, no doubt about it.
Friday the 11th holds some size at 6ft from the E, but the wind is a bit iffy, and the quality is marginal.
The 13th of September (Sunday morning) offers a glimmer again, with 3ft from the SE but a very long 13-second period and clean cross-offshore wind from the SSW. The combined energy is 377, which is moderate. The long period will make those waves stand up nicely but might be a bit straight for the beachbreak. It’s worth a look if you’re keen.
For the rest of the days into the 16th, it's mostly onshore wind and small, weak surf. Keep your eye on that Thursday the 10th – that's the one to clear your calendar for.
Rusty.
Short Range ForecastHeavy rain (total 40mm), heaviest during Mon night. Warm (max 22°C on Tue morning, min 14°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 50mm), heaviest during Sat afternoon. Very mild (max 19°C on Fri morning, min 14°C on Sat morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 | ESE 8 | ESE 8 | SSE 8 | SE 9 | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | SE 11 | ENE 8 | ENE 8 | E 8 | E 8 | SSE 6 | E 8 | E 8 | SSE 7 |
Wave Graph | |||||||||||||||||||
88 | 78 | 106 | 555 | 230 | 264 | 260 | 220 | 166 | 119 | 94 | 79 | 115 | 88 | 90 | 81 | 61 | 51 | 243 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross-on | cross-on | on | cross | glassy | cross-on | cross-off | cross-off | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on |
High Tide | 4:53AM1.13m | 5:17PM0.94m | 5:46AM1.02m | 6:02PM0.81m | 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 | |||||
Low Tide | 9:32PM0.24m | 10:01AM0.27m | 10:01PM0.27m | 10:30AM0.41m | 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 | ||||
— | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | |
6:00 | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | |
mm | 35 | 1 | 3 | 1 | — | — | — | — | — | — | — | 2 | 10 | 16 | 18 | 4 | — | — | — |
Temp °C | 19 | 22 | 19 | 17 | 17 | 18 | 17 | 19 | 20 | 16 | 19 | 18 | 16 | 15 | 15 | 14 | 15 | 16 | 14 |
Feels °C | 21 | 22 | 16 | 15 | 16 | 17 | 16 | 18 | 18 | 15 | 18 | 17 | 15 | 13 | 13 | 11 | 12 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | E 8 | ESE 8 | ENE 7 | SE 8 | SE 9 | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | ENE 6 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
88 | 78 | 29 | 245 | 230 | 264 | 260 | 220 | 166 | 119 | 24 | 79 | 115 | 88 | 90 | 49 | 61 | 48 | 20 | |
Swell 2 Height (m) Direction Period (s) | SE 7 | E 8 | — | E 8 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | NE 5 | SE 11 | SE 11 | SE 10 | SE 10 | — | SE 10 | SE 9 | — | ENE 7 |
39 | 43 | — | 33 | 108 | 81 | 40 | 26 | 25 | 22 | 94 | 55 | 27 | 15 | — | 4 | 3 | — | 11 | |
Swell 3 Height (m) Direction Period (s) | E 9 | E 8 | — | — | — | — | — | NE 4 | — | ENE 8 | E 8 | — | — | — | — | SE 14 | SE 13 | — | — |
41 | 5 | — | — | — | — | — | 2 | — | 24 | 22 | — | — | — | — | 8 | 7 | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | ESE 8 | SSE 8 | — | — | — | N 4 | NE 3 | NE 5 | — | SSE 4 | SE 5 | SE 4 | SE 5 | SSE 6 | SSE 5 | SSE 5 | SSE 7 |
— | — | 106 | 555 | — | — | — | 6 | 4 | 37 | — | 10 | 27 | 19 | 51 | 81 | 36 | 51 | 243 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 179 | 29 | 19 | 100 | 19 | 0 | 105 | 0 | 0 | 100 | 69 | 29 | 96 | 97 | 29 | 104 | 91 |
Best forecast wave conditions in Santa Catarina - Norte | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











