Surf Forecasts:
Barra do Sul surf forecast from 25 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 3AM (local time) - 2.5ft (0.8m), 14s period, SE swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 9AM (local time) - 3.5ft (1.0m), 16s period, SE swell with 468 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 3AM (local time) - 2.5ft (0.8m), 14s 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 (Aug 25) at 3AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.1m and 7s. 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 1.0m 16s and forecast to arrive on Wednesday (Aug 26) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Monday (Aug 31) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 25th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 3AM (Tue 25th Aug) | 2.5ft (0.8m) 14s |
| Most Powerful | 9AM (Wed 26th Aug) | 3.5ft (1.0m) 16s |
Table - best surf conditions forecast for Barra do Sul over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's coming down the track for Barra do Sul over the next couple of weeks.
The first few days are a bit of a struggle, but there is a light at the end of the tunnel. The water temp is sitting at 67.3°F right now, which is about a degree and a half warmer than usual for this time of year, so it feels pretty nice on the skin.
Things start to find their groove mid-week. Wednesday the 26th of August is where it really starts to turn on. We’ve got a solid 3.3ft groundswell rolling in from the southeast with a nice long period of 16 seconds. That's the kind of energy that gets you excited – good shape, proper push. The wind is glassy in the morning, swinging around to a light NE in the arvo, still glassy. For a beginner-friendly spot, this is about as good as it gets. The combined swell energy is at a moderate 477, which is a decent amount of push for this size. Thursday morning the 27th holds that clean glassy vibe with a 2.6ft SE swell, still looking really clean with that NW offshore. That morning window on Wednesday and Thursday is your pick of the whole period.
After that, the wind goes a bit messy on Thursday arvo and through Friday, and we get a drop in period to 8 seconds. That means the surf turns into weak, choppy junk. Saturday morning the 29th cleans up nicely with a cross-off SSW breeze and a 4.3ft E swell, but the period is still short. It’s surfable, but not the quality of Wednesday. The run of poor conditions through the wind shifts means the best bet is to stick with that mid-week window.
Later on, there are a few other clean moments, like Monday morning the 31st with a 3.3ft E swell and a cross-off, and then a real standout pops up on Monday afternoon the 7th of September. That morning is a bit marginal, but the afternoon turns glassy with a 2.6ft SE swell and a 12-second period. It won't be the biggest, but it will be clean. And then Tuesday the 8th of September has offshore winds and a little knee-high swell, but it's clean for a paddle if you're desperate.
Because this is a fairly consistent spot, these poor runs tend not to last forever. The 26th and 27th of August are the clear winners here. Get on it.
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 21°C on Thu morning, min 13°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sun morning. Warm (max 23°C on Fri afternoon, min 19°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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) | SE 15 | SE 14 | SE 13 | SE 13 | SSE 12 | SE 16 | SE 15 | SE 15 | SE 14 | SE 13 | SE 13 | E 8 | E 8 | ENE 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 360 | 234 | 138 | 132 | 98 | 468 | 415 | 432 | 289 | 176 | 103 | 164 | 223 | 284 | 241 | 258 | 230 | 194 | 157 | 194 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross | cross-on | glassy | cross-off | cross-on | cross | cross | cross-on | cross-on |
High Tide | 00:39AM1.00m | 1:26PM1.17m | 1:14AM1.11m | 1:57PM1.23m | 1:48AM1.20m | 2:28PM1.26m | 2:21AM1.26m | 3:00PM1.26m | 2:55AM1.29m | 3:32PM1.23m | 3:31AM1.27m | 4:05PM1.16m | ||||||||
Low Tide | 7:33PM0.39m | 7:18AM0.11m | 7:50PM0.35m | 7:43AM0.04m | 8:05PM0.32m | 8:06AM-0.00m | 8:17PM0.29m | 8:27AM-0.02m | 8:29PM0.27m | 8:48AM0.00m | 8:46PM0.25m | 9:10AM0.05m | 9:07PM0.24m | |||||||
 |  | |  |  |  | | |  | | | | | | | | |  | | | |
 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — |
 | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 15 | 15 | 15 | 15 | 15 | 17 | 19 | 18 | 21 | 22 | 19 | 22 | 23 | 20 | 22 | 22 | 19 | 21 | 21 | 20 |
Feels °C | 14 | 13 | 15 | 16 | 16 | 19 | 21 | 20 | 21 | 22 | 20 | 23 | 23 | 22 | 24 | 23 | 20 | 24 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SE 15 | SE 14 | SE 13 | SE 13 | SSE 12 | SE 16 | SE 15 | SE 15 | SE 14 | ENE 6 | E 6 | E 8 | E 8 | ENE 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | 360 | 234 | 138 | 132 | 98 | 468 | 415 | 432 | 289 | 51 | 66 | 164 | 223 | 284 | 241 | 258 | 230 | 194 | 157 | 194 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 6 | SE 16 | ENE 4 | ENE 5 | ENE 5 | ENE 6 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | S 6 |
| kJ | 1 | 1 | 1 | 1 | 94 | 8 | 9 | 16 | 50 | 176 | 103 | 50 | 21 | 11 | 4 | 4 | 4 | 4 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 6 | E 8 | — | — | — | — | — | — | — | — | — | — | — | SSE 9 | S 6 | SE 9 |
| kJ | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 9 | 1 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 3 | — | — | — | — | — | — | — | — | — | S 3 | SSE 4 | S 4 | — | — | — |
| kJ | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | 2 | 14 | 6 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 70 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 363 | 21 | 21 | 105 | 0 | 0 | 100 | 29 | 19 | 54 | 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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