Surf Forecasts:
Barra do Sul surf forecast from 19 Aug 2026:
- Best quality surf: Saturday 22 Aug, 3AM (local time) - 6ft (1.9m), 10s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 22 Aug, 3AM (local time) - 6ft (1.9m), 10s period, SSE swell with 644 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 9AM (local time) - 2.5ft (0.7m), 7s 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 Thursday (Aug 20) at 9AM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.2m and 4s. 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 1.9m 10s and forecast to arrive on Saturday (Aug 22) at 3AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Friday (Aug 21) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 20th Aug) | 2.5ft (0.7m) 7s |
| Best Surf | 3AM (Sat 22nd Aug) | 6ft (1.9m) 10s |
| Most Powerful | 3AM (Sat 22nd Aug) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Barra do Sul over the next 16 days.
The Lowdown
Alright, let’s talk about Barra do Sul. Water temp is about 67°F, which is just a touch warmer than average for this time of year—nothing unusual.
The first week is a bit of a grind. The waves are small and the wind is mostly cross-on or onshore, with only a few clean windows. The standout call is Monday, August 24th, in the afternoon. We’ve got a 3-foot swell from the southeast with a 16-second period—that’s proper groundswell, with plenty of energy (moderate, at 417). The wind goes glassy, so it’ll be clean and lined up. Crowds are possible, so don’t sleep on it.
Tuesday morning, August 25th, is also worth a look: glassy again, with 3-foot swell from the southeast at 14 seconds. Energy is still decent (224). Not as big as Monday, but still a solid session.
After that, the surf drops off. A few mornings in the second week are clean, like Saturday, August 29th, with a light offshore wind and 3-foot swell from the east-northeast (201 energy), but the swell is short period and weak. The last really good window is that Saturday morning—otherwise, the rest of the second week is small, choppy, or blown out.
For beginners, most of the swell stays under 3 feet, so it’s fine. The biggest waves show up on Monday, August 31st, with 5-foot swell from the southeast, but it’s short period (8 seconds) and cross-on wind—total chop. That setup might be better for kite surfing than a surfboard.
So, the best call is Monday afternoon, August 24th, with glassy conditions and a long-period groundswell from the southeast. Tuesday morning is a good backup. The rest is small and mostly messy.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 15°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Tue morning, min 13°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | ENE 8 | E 8 | E 7 | E 7 | ENE 7 | E 7 | E 7 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 12 | SE 13 | SE 13 | SE 14 | SE 16 | SE 14 | SE 14 | SE 13 | SE 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 77 | 57 | 54 | 39 | 41 | 25 | 25 | 72 | 145 | 115 | 74 | 67 | 82 | 138 | 416 | 416 | 297 | 218 | 140 | 100 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | glassy | cross-on | off | cross-off | cross-off | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross-on | glassy |
High Tide | 6:19PM0.77m | 7:48AM0.79m | 2:56PM0.73m | 7:32PM0.70m | 3:43AM0.52m | 2:16PM0.74m | 9:29PM0.68m | 11:28AM0.87m | 11:03PM0.76m | 12:18PM0.98m | 11:59PM0.88m | 12:54PM1.08m | 00:39AM1.00m | 1:26PM1.17m | 1:14AM1.11m | |||||
Low Tide | 11:20PM0.36m | 11:32AM0.61m | 5:39PM0.68m | 00:17AM0.44m | 4:24AM0.52m | 12:36PM0.73m | 6:23PM0.60m | 5:38AM0.41m | 6:50PM0.52m | 6:19AM0.30m | 7:13PM0.45m | 6:51AM0.20m | 7:33PM0.39m | 7:18AM0.11m | 7:50PM0.35m | |||||
 |  |  |  |  | | | | | |  | | | | | | | | | | |
 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — |
 | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 19 | 21 | 22 | 22 | 20 | 23 | 16 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 16 | 16 | 17 | 18 | 16 |
Feels °C | 21 | 21 | 23 | 23 | 22 | 16 | 21 | 13 | 14 | 13 | 14 | 14 | 13 | 10 | 14 | 15 | 15 | 18 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | E 8 | E 7 | E 7 | ENE 7 | E 7 | E 7 | E 8 | E 8 | E 8 | SE 10 | SE 12 | SE 13 | SE 13 | SE 14 | SE 16 | SE 14 | SE 14 | SE 13 | SE 13 |
| kJ | 77 | 57 | 54 | 39 | 41 | 25 | 25 | 64 | 51 | 37 | 74 | 67 | 82 | 138 | 416 | 416 | 297 | 218 | 140 | 100 |
Swell 2 Height (m) Direction Period (s) | E 14 | E 13 | SSE 4 | SE 4 | SE 5 | S 6 | WSW 3 | SSE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 6 | ENE 3 | E 6 | ENE 5 |
| kJ | 4 | 3 | 2 | 3 | 4 | 1 | 1 | 72 | 73 | 55 | 12 | 5 | 5 | 4 | 1 | 1 | 1 | 1 | 1 | 10 |
Swell 3 Height (m) Direction Period (s) | — | S 9 | SE 11 | S 10 | E 12 | E 11 | SE 6 | — | — | — | — | — | — | — | — | — | — | E 7 | — | — |
| kJ | — | 2 | 4 | 2 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | SE 4 | SSE 5 | — | — | NNW 3 | WSW 3 | — | SE 6 | SE 10 | SE 10 | — | — | SE 3 | SE 4 | — | — | NE 6 | NNE 6 | ENE 3 | — |
| kJ | 8 | 17 | — | — | 2 | 10 | — | 46 | 145 | 115 | — | — | 3 | 22 | — | — | 2 | 4 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 97 | 19 | 0 | 183 | 19 | 93 | 42 | 19 | 19 | 100 | 19 | 19 | 204 | 91 | 19 | 0 | 0 | 0 | 58 | 0 |
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.
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