
Surf Forecasts:
Barra do Sul surf forecast from 5 Sep 2026:
- Best quality surf: Monday 7 Sep, 6AM (local time) - 6ft (1.9m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 3AM (local time) - 8ft (2.4m), 9s period, SSE swell with 958 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 6AM (local time) - 6ft (1.9m), 8s period with SSE 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 Monday (Sep 07) at 6AM. The primary swell is predicted to be 1.9m and 8s period with a secondary swell of 1.1m and 9s. Another secondary swell of 0.2m and 8s 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. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Tuesday (Sep 08) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 7th Sep) | 6ft (1.9m) 8s |
| Best Surf | 6AM (Mon 7th Sep) | 6ft (1.9m) 8s |
| 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’s cookin’ for Barra do Sul over the next couple of weeks.
Right off the bat, I gotta be straight with you – the first week is a bit of a struggle. We’ve got a few days of tiny, weak swell with onshore or cross-shore winds that just ain’t gonna make for any decent waves. The combined energy is low, mostly under 150 (139-95), and that 8-second period isn’t doing it any favours. It’s a pretty bleak start, with the first real glimmer of hope not showing up until the morning of Monday the 7th of September, and even then it’s a marginal call. You’ll be looking at a blank run for the first couple of days.
Now, let’s talk about the good stuff. The standout period is the morning of Monday the 13th of September. That’s where we finally see some proper swell energy kick in, with a solid 6 ft from the SSE carrying a combined energy of 511 (moderate). The wind is a clean cross-off from the SSW, which is a major positive for a clean face. The period is 9 seconds, so it’ll be a bit fuller than the junk we’ve been seeing. This is the best on offer in the whole forecast.
Then, hold onto your boards, because the afternoon of Monday the 14th of September is a real gem. The wind drops to glassy, and we’ve got a nice 6 ft groundswell from the ESE with a long 12-second period and a combined energy of 800 (strong). That’s proper, clean, walled-up surf. The water temp is a touch warmer than normal at 69°, so that’s a nice bonus.
Tuesday the 15th of September morning keeps the run going with 5 ft from the ESE and a clean offshore wind from the W, combined energy of 659 (strong). The period is a long 11 seconds, so think about those long, peeling lines.
Looking further out, the morning of Sunday the 20th of September has a promising 6 ft swell from the E with a clean cross-off wind. The combined energy jumps to 865 (strong), but it’s a long way off, so take it with a grain of salt. The afternoon sees that swell jump to 8 ft, which is getting into the expert-only zone, and the wind swings onshore, making it a bit of a washout.
For the bigger swells on the 13th and 14th, Barra do Sul is an exposed beach break, so with that 12-second period, it might be a bit straight and powerful. Better for the more experienced crew. And when the crowds are ‘sometimes’ around, you might have a few mates out.
Signing off, Rusty.
Short Range ForecastHeavy rain (total 34mm), heaviest during Sat afternoon. Very mild (max 16°C on Sun morning, min 12°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Wed night. Warm (max 21°C on Wed morning, min 14°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | E 8 | E 8 | E 8 | E 8 | SE 5 | SE 10 | S 8 | SSE 10 | SSE 9 | ESE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||||
90 | 68 | 63 | 43 | 73 | 480 | 292 | 40 | 173 | 125 | 193 | 212 | 228 | 235 | 161 | 129 | 102 | 72 | 57 | 74 | 29 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross-on | cross | cross | cross-on | glassy | cross-off | cross-on | off | cross-off | cross-on | cross-on | cross | on | glassy | glassy | glassy | cross |
High Tide | 10:43AM0.92m | 10:22PM0.69m | 12:02PM1.04m | 11:30PM0.82m | 12:42PM1.14m | 00:16AM0.96m | 1:15PM1.20m | 00:54AM1.09m | 1:46PM1.23m | 1:30AM1.20m | 2:15PM1.22m | 2:05AM1.26m | 2:44PM1.19m | 2:40AM1.28m | |||||||
Low Tide | 6:35PM0.46m | 6:06AM0.26m | 7:11PM0.41m | 6:47AM0.14m | 7:41PM0.39m | 7:21AM0.05m | 8:05PM0.38m | 7:50AM0.00m | 8:19PM0.39m | 8:10AM0.00m | 8:13PM0.37m | 8:20AM0.03m | 8:03PM0.31m | ||||||||
6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | |
— | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | |
mm | 4 | 18 | 11 | 1 | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | 3 | 15 |
Temp °C | 15 | 14 | 14 | 16 | 15 | 13 | 14 | 15 | 15 | 17 | 18 | 16 | 21 | 21 | 18 | 20 | 20 | 19 | 21 | 20 | 20 |
Feels °C | 14 | 11 | 12 | 13 | 11 | 8 | 12 | 13 | 14 | 16 | 16 | 17 | 21 | 20 | 19 | 22 | 21 | 21 | 24 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SE 6 | SSE 10 | ESE 7 | ESE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
90 | 68 | 63 | 43 | 22 | 12 | 58 | 40 | 96 | 125 | 193 | 212 | 228 | 235 | 161 | 129 | 102 | 72 | 57 | 74 | 29 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | — | SE 10 | SSE 10 | — | — | SE 10 | E 8 | SSE 9 | SE 10 | SE 10 | SE 10 | SE 12 | SE 12 | SE 12 | SE 12 | SE 16 | SSE 13 | SSE 12 | SE 12 | E 4 |
16 | — | 15 | 9 | — | — | 26 | 11 | 173 | 26 | 24 | 14 | 36 | 36 | 34 | 24 | 38 | 18 | 15 | 6 | 10 | |
Swell 3 Height (m) Direction Period (s) | S 9 | — | S 15 | SSE 11 | — | — | E 8 | — | — | — | — | SE 12 | SSE 14 | — | — | SE 17 | E 15 | SE 14 | E 13 | E 13 | SE 5 |
15 | — | 4 | 11 | — | — | 5 | — | — | — | — | 6 | 36 | — | — | 11 | 4 | 8 | 13 | 3 | 1 | |
Wind waves Height (m) Direction Period (s) | SE 5 | SSE 5 | SE 6 | SSE 5 | SE 5 | SE 10 | S 8 | SE 5 | — | WSW 2 | — | — | — | — | — | — | — | — | — | — | — |
18 | 56 | 46 | 19 | 73 | 480 | 292 | 22 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 29 | 69 | 29 | 29 | 104 | 29 | 22 | 100 | 0 | 0 | 66 | 0 | 0 | 100 | 29 | 19 | 100 | 0 | 0 | 0 | 21 |
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.










