Surf Forecasts:
Barra da Lagoa surf forecast from 25 Aug 2026:
- Most powerful swell: Wednesday 26 Aug, 12PM (local time) - 7ft (2.2m), 14s period, SSE swell with 2,061 kJ wave energy.
Best Forecast Surf Conditions for Barra da Lagoa this week:
The most powerful waves expected at Barra da Lagoa in the next 16 days are 2.2m 14s and forecast to arrive on Wednesday (Aug 26) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Tuesday (Sep 01) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12PM (Wed 26th Aug) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright, Rusty here again, giving you the same outlook in feet and miles. It’s a tough read for the next couple of weeks—a long, quiet stretch before anything decent shows up.
The first real swell hits Wednesday, 26th August. Morning brings a 7ft SSE swell with a very long period of 15 seconds – proper groundswell energy (combined energy of 1847). That’s got power, but the wind is light from the north, sitting cross-shore. Clean enough on the surface, just some small ripples. At a beach break like Barra da Lagoa, that long-period swell can be a bit straight, but it’s the best we’ve got. Water temp is 66°, average for the season. The afternoon holds the same 7ft swell, but wind swings NNE to 12 mph, turning cross-onshore and choppy—not good.
Thursday morning, 27th August, still has size: 5ft SSE at 14 seconds (combined energy of 902) with a light NNW cross-shore breeze. It’s smaller but rideable. Afternoon wind picks up again, making a mess.
Then it goes quiet. Friday 28th through Monday 31st August is mostly tiny and weak. Monday afternoon sees a 3ft SSE swell with clean light cross-offshore wind from the south, but it’s nearly flat (combined energy of 72). Hardly worth it.
The next real chance is Sunday, 6th September. That afternoon, a 5ft SSE swell at 11 seconds (combined energy of 598) arrives under clean 16 mph cross-offshore wind from the south. Fun-sized and clean, but it’s a long way out—promising but less certain. The following morning, Monday 7th September, holds 4ft SSE at 12 seconds, and by the afternoon the wind goes glassy—dead calm. Less energy (196), but glassy conditions at Barra da Lagoa are magic.
Standout is Wednesday 26th August morning – 7ft SSE groundswell, light cross-shore wind. The backup is Sunday 6th September afternoon – clean and solid. Crowds are often at Barra da Lagoa, so you’ll have company.
Otherwise? Flat, choppy, or windy. Hang tight.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Thu morning, min 13°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Sun night. Warm (max 22°C on Fri afternoon, min 18°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | S 13 | SSE 12 | SE 16 | SSE 15 | SSE 14 | SSE 15 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 9 | SSE 7 | SSE 7 | SSE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 508 | 1847 | 1987 | 1772 | 1064 | 745 | 309 | 158 | 95 | 44 | 25 | 19 | 10 | 10 | 10 | 3 | 34 | 50 | 49 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross-off | cross | cross-off | cross-off | glassy | glassy | cross-off | cross-off | cross-off |
High Tide | 1:29PM0.84m | 00:49AM0.77m | 1:51PM0.87m | 1:16AM0.83m | 2:12PM0.88m | 1:43AM0.89m | 2:34PM0.87m | 2:12AM0.92m | 2:58PM0.85m | 2:44AM0.92m | 3:22PM0.81m | 3:19AM0.90m | 3:49PM0.75m | ||||||||
Low Tide | 7:27PM0.30m | 7:24AM0.00m | 7:52PM0.27m | 7:57AM-0.03m | 8:18PM0.26m | 8:30AM-0.04m | 8:45PM0.25m | 9:04AM-0.01m | 9:11PM0.25m | 9:38AM0.05m | 9:36PM0.26m | 10:15AM0.15m | 9:54PM0.27m | ||||||||
 |  |  | | | |  | |  | | | | | | |  |  |  |  | |  | |
 | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 5:57 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 10 | 20 | 13 | 6 |
Temp °C | 15 | 16 | 16 | 19 | 18 | 18 | 21 | 20 | 19 | 21 | 22 | 20 | 22 | 22 | 20 | 20 | 20 | 19 | 18 | 18 | 18 |
Feels °C | 12 | 13 | 15 | 18 | 17 | 18 | 20 | 19 | 19 | 19 | 21 | 21 | 22 | 23 | 20 | 22 | 22 | 22 | 20 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | S 13 | SSE 12 | S 12 | SSE 15 | SSE 14 | SSE 15 | SSE 14 | SSE 13 | ENE 7 | ENE 8 | SSE 11 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 957 | 876 | 628 | 1847 | 1987 | 1772 | 1064 | 745 | 186 | 310 | 69 | 432 | 460 | 488 | 466 | 367 | 300 | 383 | 433 | 359 | 262 |
Swell 2 Height (m) Direction Period (s) | NE 7 | — | SE 16 | — | — | NE 5 | NE 6 | — | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SE 10 | SSE 10 | SSE 10 | SSE 10 | S 6 | S 6 | SSE 7 | SSE 7 | SSE 7 |
| kJ | 2 | — | 508 | — | — | 37 | 83 | — | 309 | 158 | 95 | 44 | 25 | 19 | 10 | 10 | 18 | 29 | 34 | 50 | 49 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 10 | SE 9 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 3 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | N 3 | — | NE 4 | NE 5 | NE 6 | ENE 6 | NW 3 | N 4 | ENE 8 | — | SSW 3 | S 4 | S 4 | S 4 | — | — | — | N 3 | SW 3 |
| kJ | — | — | 5 | — | 18 | 60 | 132 | 97 | 2 | 18 | 423 | — | 3 | 7 | 13 | 11 | — | — | — | 7 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 62 | 3 | 4 | 11 | 4 | 3 | 221 | 3 | 3 | 43 | 3 | 21 | 21 | 13 | 13 | 3 | 3 | 13 | 13 | 21 |
Best forecast wave conditions in Florianópolis | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Barra da Lagoa Surf forecast
The above surf forecast table for Barra da Lagoa provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Barra da Lagoa can be found by selecting the local surf guide option on the grey menu. Our Barra da Lagoa 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 da Lagoa) 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 da Lagoa 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 da Lagoa is 9 km (6 miles) from Florianopolis. If you plan a holiday in Florianópolis, look for hotels and other accommodation in Florianopolis. Florianopolis has rooms for a wide range of budgets as well as car hire and transport links.
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