
Surf Forecasts:
Barra da Lagoa surf forecast from 8 Sep 2026:
- Best quality surf: Sunday 13 Sep, 12PM (local time) - 10ft (3.0m), 11s period, SSE swell with cross-shore winds.
- Most powerful swell: Sunday 13 Sep, 12PM (local time) - 10ft (3.0m), 11s period, SSE swell with 1,779 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 6AM (local time) - 5ft (1.5m), 10s period with SSE swell.
Best Forecast Surf Conditions for Barra da Lagoa this week:
The surf forecast for Barra da Lagoa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 08) at 6AM. The primary swell is predicted to be 1.5m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Barra da Lagoa in the next 16 days are 3.0m 11s and forecast to arrive on Sunday (Sep 13) 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 3.0m 8s period and expected on Saturday (Sep 12) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 8th Sep) | 5ft (1.5m) 10s |
| Best Surf | 12PM (Sun 13th Sep) | 10ft (3.0m) 11s |
| Most Powerful | 12PM (Sun 13th Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down the next couple of weeks at Barra da Lagoa.
We’ve got a decent little window to kick things off. Tuesday morning is the go-to for the first few days, with some chest-high lines. We’re looking at a 5ft SSE swell with a 10-second pulse, and the light WNW cross-off breeze will have it looking real clean. Water temp is about normal for this time of year, nothing strange. The energy is moderate, sitting at 386, but enough for some fun rides. It’s a good session for the groms and beginners; it’s not too threatening and the surface is smooth. The wind swings onshore in the afternoon and will mess it up, so get your fill in the morning.
Wednesday morning is another chance, starting off glassy. The swell backs off a little to 3ft, still from the SSE with that 10-second period. It won't be big, but with no wind, it'll be super fun on a longboard or a fish. The energy is still moderate at 295, but the quality will be there. After that, it goes quiet for a few days.
We’ll see a lull from Wednesday afternoon through Sunday. The surf gets small, weak, and messy, with onshore and cross winds. There just won’t be any push. Expect a few days of nothing worth paddling out for. This is a typical little flat spell we get around here.
Then, on Sunday the 13th, the ocean wakes up. The swell jumps to 8ft from the SSE, with an 11-second period. The energy reading is a big 1658. But, the wind is a moderate cross-shore from the SE, and it’s going to be lumpy and bumpy. It’s not going to be clean, and for most of us, it's going to be a fight. This size is getting serious—definitely past the beginner comfort zone and heading into more experienced territory. The onshore breeze is going to chop it up, so it might be more of a day for the kite surfers than a clean paddle session.
Monday the 14th has the swell still up, but the wind is onshore and it’s raining. The surface will be choppy, and it's just not worth the hassle.
Then we hit the real standout. On Tuesday the 15th, the wind goes light offshore again, the sky clears, and we get a clean 4ft SSE/S swell with a longer, nicer 12-second period. The energy is moderate at 314, but the quality will be much better. This is the window. The morning session will be glassy and clean, a proper reward after the lackluster days. This is the one to circle on the calendar.
Wednesday the 16th has a smaller, cleaner option in the morning with a 2ft swell, but it’s nothing special. Then it fades out again towards the end of the week.
Looking further ahead, there is another pulse of swell for Friday the 18th, but the forecast has it a little messy. A 4ft SSE swell with a 9-second period arrives with light, glassy winds in the morning. It could be alright, but it's a long-range call and less certain. Worth a look, but don’t make solid plans for it.
So, to wrap it up: Tuesday morning is your solid, immediate bet. Next Tuesday the 15th looks like the pick of the bunch for clean conditions. Everything else is either small, messy, or just not worth the drive. Keep an eye on the sky and be ready to go when it’s good.
Rusty out.
Short Range ForecastMostly dry. Warm (max 20°C on Thu afternoon, min 14°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 23mm), heaviest during Fri night. Warm (max 21°C on Fri afternoon, min 15°C on Sat night). Winds increasing (calm on Thu night, fresh winds from the SSW by Sat morning). | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 10 | ENE 8 | SE 9 | SSE 16 | NNE 4 | S 13 | S 12 | ESE 13 | NNW 4 | S 8 | S 10 | S 11 | SSE 11 | SSE 11 | SSE 11 |
Wave Graph | |||||||||||||||||||
473 | 386 | 235 | 185 | 209 | 0 | 20 | 102 | 13 | 0 | 0 | 17 | 13 | 0 | 0 | 0 | 0 | 1658 | 681 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-on | cross-off | glassy | cross-on | glassy | cross-on | cross-on | glassy | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on |
High Tide | 00:07AM0.63m | 1:41PM0.88m | 00:28AM0.73m | 1:53PM0.86m | 00:55AM0.82m | 2:03PM0.83m | 1:25AM0.88m | 2:17PM0.80m | 1:56AM0.91m | 2:33PM0.78m | 2:29AM0.91m | 2:51PM0.75m | |||||||
Low Tide | 6:45AM0.00m | 7:35PM0.34m | 7:24AM-0.04m | 7:57PM0.33m | 7:58AM-0.04m | 8:16PM0.31m | 8:29AM0.00m | 8:30PM0.29m | 8:54AM0.07m | 8:36PM0.25m | 9:12AM0.16m | 8:38PM0.21m | |||||||
— | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | |
6:01 | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 13 | — | — | 2 | 1 | 1 | 26 |
Temp °C | 15 | 18 | 19 | 17 | 19 | 19 | 18 | 19 | 20 | 20 | 20 | 21 | 21 | 18 | 17 | 15 | 16 | 16 | 15 |
Feels °C | 14 | 16 | 17 | 17 | 20 | 19 | 19 | 19 | 19 | 21 | 19 | 20 | 21 | 12 | 11 | 10 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 9 | ENE 9 | SSE 11 |
473 | 386 | 235 | 237 | 322 | 291 | 238 | 151 | 142 | 150 | 105 | 107 | 146 | 87 | 53 | 50 | 113 | 92 | 681 | |
Swell 2 Height (m) Direction Period (s) | E 8 | ENE 7 | E 6 | SSE 9 | SSE 10 | S 11 | S 12 | S 12 | S 15 | S 13 | S 12 | S 12 | S 11 | E 12 | E 12 | — | — | — | S 10 |
5 | 11 | 76 | 185 | 209 | 251 | 274 | 232 | 453 | 280 | 141 | 66 | 37 | 11 | 3 | — | — | — | 279 | |
Swell 3 Height (m) Direction Period (s) | ENE 7 | ENE 7 | SSW 9 | SE 15 | SSE 10 | E 16 | SE 9 | SSE 16 | SE 8 | E 14 | S 7 | ESE 13 | E 12 | — | — | — | — | — | ENE 9 |
5 | 10 | 16 | 9 | 86 | 5 | 20 | 102 | 3 | 15 | 4 | 17 | 12 | — | — | — | — | — | 58 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 4 | — | — | NNE 4 | NNW 4 | S 8 | S 10 | S 11 | SSE 11 | SSE 11 | SE 10 |
— | — | — | — | — | — | — | — | 13 | — | — | 10 | 13 | 1004 | 1737 | 1814 | 1628 | 1658 | 241 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 11 | 0 | 0 | 21 | 3 | 3 | 25 | 4 | 3 | 358 | 4 | 17 | 17 | 17 | 17 | 21 | 21 |
Best forecast wave conditions in Florianópolis | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










