Surf Forecasts:
Barra do Sul surf forecast from 31 Aug 2026:
- Best quality surf: Monday 7 Sep, 12AM (local time) - 8ft (2.5m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 3AM (local time) - 7ft (2.2m), 10s period, SSE swell with 1,007 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 6AM (local time) - 3ft (0.9m), 8s period with E 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 (Aug 31) at 6AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 6s. 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 10s and forecast to arrive on Monday (Sep 07) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Sep 01) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 31st Aug) | 3ft (0.9m) 8s |
| Best Surf | 12AM (Mon 7th Sep) | 8ft (2.5m) 8s |
| Most Powerful | 3AM (Mon 7th Sep) | 7ft (2.2m) 10s |
Table - best surf conditions forecast for Barra do Sul over the next 16 days.
The Lowdown
Alright, Rusty here, lookin' at the surf for Barra do Sul.
First couple of days are a total wash. Monday and Tuesday are small, weak, and messy. The energy is pathetic (126), and the wind is all over the place. Not worth a second look.
The first real action hits Wednesday morning, September 2nd. We’re looking at a 6ft southeast swell with a clean cross-offshore breeze. The combined energy jumps to 707, which is a solid pulse. The water temperature is about normal for this time of year. This is the standout session. The waves are going to be a bit too big for beginners, but for everyone else, it’s game on. The wind is clean, the swell has some push, and the break is fairly consistent. This is your best shot.
Thursday the 3rd has a smaller 3ft, 11-second groundswell in the morning with cross-offshore wind. The energy is moderate (245). The long period will make the waves steep and better suited for a point or reef, but here at the beach, it might be a bit straight. Friday and Saturday are blown out with onshore winds and chop.
The second week sees another pulse. Wednesday the 9th looks clean with a 4ft east-southeast swell and glassy conditions, energy at 379. Thursday the 10th is the next real highlight: 5ft east swell, glassy offshore wind, combined energy at 525. That’s a strong, clean morning with proper waves. The swell is just under 6ft, so it’s good for intermediates and up. The wind is glass, so expect perfect lines. After that, it’s back to onshore slop through the weekend.
So, to sum it up: the best windows are Wednesday morning, the 2nd, and Thursday morning, the 10th. The first one is the biggest and cleanest of the whole run. The second week’s window is promising but less certain this far out. The rest is mostly filler.
Rusty.
Short Range ForecastHeavy rain (total 50mm), heaviest during Sun night. Warm (max 25°C on Tue afternoon, min 15°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Fri night. Warm (max 20°C on Thu afternoon, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 | E 8 | ESE 8 | SE 7 | SE 8 | SE 8 | SE 11 | ESE 11 | SE 11 | SE 11 | SE 10 | SE 10 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 111 | 113 | 90 | 88 | 43 | 93 | 231 | 392 | 142 | 258 | 200 | 166 | 94 | 54 | 124 | 105 | 80 | 63 | 48 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | glassy | off | glassy | cross-off | cross-off | cross-off | on | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross | cross | cross-on | cross-off |
High Tide | 4:10AM1.22m | 4:40PM1.06m | 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 | |||||
Low Tide | 9:07PM0.24m | 9:34AM0.14m | 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 | ||||
 |  | | |  |  |  |  | | | | | | |  |  | |  |  | |
 | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | 6:00 | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — |
mm | 18 | 6 | 8 | 16 | — | 2 | — | — | — | — | — | — | — | — | 2 | 6 | 1 | — | — |
Temp °C | 18 | 18 | 18 | 19 | 21 | 25 | 18 | 18 | 18 | 16 | 18 | 20 | 17 | 19 | 18 | 14 | 13 | 13 | 13 |
Feels °C | 19 | 19 | 20 | 21 | 22 | 26 | 17 | 16 | 16 | 16 | 16 | 18 | 16 | 18 | 16 | 9 | 10 | 10 | 12 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | SE 7 | ESE 8 | E 8 | SE 8 | SE 8 | SE 11 | ESE 11 | SE 11 | SE 11 | ENE 6 | ENE 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 111 | 113 | 90 | 88 | 43 | 93 | 48 | 176 | 142 | 258 | 200 | 166 | 94 | 36 | 77 | 105 | 80 | 63 | 48 |
Swell 2 Height (m) Direction Period (s) | S 10 | SE 6 | SE 7 | SE 7 | E 8 | ENE 7 | — | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 5 | SE 10 | — | SE 10 | SE 10 | SE 14 | SE 12 |
| kJ | 2 | 13 | 35 | 42 | 42 | 62 | — | 139 | 108 | 59 | 39 | 38 | 20 | 54 | — | 16 | 15 | 8 | 23 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 9 | ESE 8 | — | — | — | — | — | — | — | E 8 | E 8 | — | — | S 15 | — | SE 10 |
| kJ | — | — | — | 41 | 14 | — | — | — | — | — | — | — | 37 | 34 | — | — | 4 | — | 4 |
Wind waves Height (m) Direction Period (s) | SE 5 | — | — | — | — | — | SE 7 | SE 8 | — | — | N 3 | NE 3 | NE 5 | — | SE 10 | SSE 6 | SSE 5 | SSE 5 | SE 5 |
| kJ | 7 | — | — | — | — | — | 231 | 392 | — | — | 6 | 5 | 46 | — | 124 | 68 | 22 | 51 | 32 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 0 | 0 | 183 | 0 | 0 | 191 | 187 | 69 | 29 | 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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