Surf Forecasts:
Barra da Lagoa surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 6PM (local time) - 3.5ft (1.0m), 9s period, SE swell with cross-offshore winds.
- Most powerful swell: Sunday 13 Sep, 9AM (local time) - 5ft (1.5m), 8s period, SSE swell with 240 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 6PM (local time) - 3.5ft (1.0m), 9s period with SE 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 Monday (Sep 14) at 6PM. The primary swell is predicted to be 1.0m and 9s 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 1.5m 8s and forecast to arrive on Sunday (Sep 13) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Saturday (Sep 12) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 14th Sep) | 3.5ft (1.0m) 9s |
| Best Surf | 6PM (Mon 14th Sep) | 3.5ft (1.0m) 9s |
| Most Powerful | 9AM (Sun 13th Sep) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you about the surf ahead for Barra da Lagoa. We’ve got a long stretch of nothing much, a couple of fleeting pulses, and one pretty decent morning if you’re patient. Let’s break it down.
To start, the water is sitting at 64° Fahrenheit, which is a bit colder than normal for this time of year, so you’ll want the full suit.
The next week is grim. We’re looking at knee-high slop and mess. Friday the 11th has a bit of ankle-high junk, but it’s crossed up and it’s raining, so don’t bother. Saturday the 12th is clean but there’s no swell; it’s flat.
We get a pulse of south swell on Sunday the 13th, about 6ft, but the period is a short and crumbly 8 seconds. It’s got some energy, about 361 from the combined swells, but it’s a mess with the wind. It’s not really surfable. That’s followed by a few days of onshore junk and more flatness. Tuesday the 15th through Thursday the 17th is a write-off for the most part.
Finally, on Thursday the 17th in the afternoon, there’s a new longer-period swell showing up. The swell height is 4ft from the SSE with a 14-second period, which is proper groundswell. The energy jumps to 515, which is strong. But the wind is cross-onshore and it’s choppy. The potential is there, but the conditions will likely ruin it. If you can sneak out at a protected spot, maybe, but it’s not looking good.
After that, it’s back to small and weak for a few more days. We get a tiny bit of life on the 19th with a 2ft SSE swell, but it’s ordinary.
Here’s the one to circle on your calendar: Thursday the 24th, in the morning. We’ve got a 4ft SSE swell with a 9-second period, and it’s glassy. The wind is dead calm. The combined energy is reading 295, which is moderate. This is the standout. It’s not huge, but clean, glassy surf at Barra is a gift. This is the morning to get out there. The water will still be cold, but the surf will be worth it.
The weeks after that are mostly small and unremarkable. A few ankle-biters and some cross-shore chop. Nothing to get excited about.
So, the long and short of it is: this is a very quiet couple of weeks. Don’t hold your breath for the first week. But if you can wait until the morning of the 24th, there’s a decent chance of some clean, rideable waves. The forecast is a bit far out, so it’s not locked in, but it’s the one to hope for.
Stay patient, and keep an eye on that Thursday.
- Rusty
Short Range ForecastHeavy rain (total 53mm), heaviest during Fri afternoon. Warm (max 20°C on Fri afternoon, min 15°C on Sat night). Winds increasing (calm on Fri afternoon, fresh winds from the S by Sat afternoon). | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Mon night. Very mild (max 18°C on Tue afternoon, min 14°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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) | ESE 13 | ENE 8 | ESE 12 | S 7 | S 7 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 12 | SE 8 | SE 8 | SSE 6 | SE 8 | E 9 | NNE 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 17 | 0 | 14 | 0 | 0 | 240 | 126 | 192 | 125 | 139 | 118 | 102 | 43 | 121 | 11 | 10 | 90 | 2 | 0 | 12 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-off | off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-on |
High Tide | 1:56AM0.91m | 2:33PM0.78m | 2:29AM0.91m | 2:51PM0.75m | 3:03AM0.87m | 3:10PM0.73m | 3:37AM0.81m | 3:28PM0.70m | 4:13AM0.74m | 3:46PM0.67m | 4:55AM0.65m | 4:01PM0.62m | ||||||||
Low Tide | 8:30PM0.29m | 8:54AM0.07m | 8:36PM0.25m | 9:12AM0.16m | 8:38PM0.21m | 9:19AM0.25m | 8:47PM0.18m | 9:16AM0.33m | 9:06PM0.18m | 9:14AM0.40m | 9:29PM0.20m | 9:12AM0.46m | 9:54PM0.26m | |||||||
 |  |  |  |  |  | |  | | | | | | | | | |  | |  | |
 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — |
mm | 26 | — | — | 2 | — | — | 3 | 19 | 3 | 2 | 11 | — | — | — | — | — | — | — | — | 4 |
Temp °C | 20 | 20 | 18 | 17 | 16 | 15 | 15 | 16 | 16 | 15 | 15 | 17 | 18 | 16 | 17 | 17 | 16 | 17 | 17 | 18 |
Feels °C | 20 | 19 | 14 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 14 | 17 | 18 | 14 | 14 | 14 | 13 | 16 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 8 | ENE 7 | ENE 7 | ENE 8 | E 8 | E 9 | ESE 10 | E 10 | E 9 | E 9 | S 10 | S 8 | S 12 |
| kJ | 120 | 126 | 62 | 67 | 51 | 65 | 76 | 192 | 132 | 121 | 171 | 472 | 509 | 768 | 347 | 287 | 196 | 249 | 127 | 341 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 11 | ESE 12 | E 12 | E 12 | SE 11 | S 8 | ENE 8 | SE 8 | SE 8 | SE 8 | SE 8 | S 10 | S 10 | SE 8 | SE 8 | S 9 | E 9 | E 9 | E 8 |
| kJ | 95 | 37 | 14 | 11 | 3 | 5 | 55 | 92 | 125 | 139 | 118 | 102 | 133 | 96 | 11 | 10 | 43 | 155 | 126 | 140 |
Swell 3 Height (m) Direction Period (s) | ESE 13 | S 6 | — | — | — | S 16 | SE 9 | S 12 | S 11 | S 11 | S 10 | S 10 | SE 8 | SSE 12 | — | — | SSE 12 | SE 8 | S 11 | S 12 |
| kJ | 17 | 3 | — | — | — | 5 | 30 | 77 | 205 | 188 | 161 | 127 | 43 | 121 | — | — | 51 | 2 | 63 | 174 |
Wind waves Height (m) Direction Period (s) | N 4 | — | S 6 | S 7 | S 7 | SSE 8 | SSE 8 | — | — | — | — | — | — | S 10 | S 11 | S 6 | SSE 6 | — | — | NNE 4 |
| kJ | 9 | — | 181 | 479 | 352 | 240 | 126 | — | — | — | — | — | — | 361 | 524 | 169 | 90 | — | — | 12 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3 | 43 | 5 | 64 | 21 | 21 | 21 | 21 | 21 | 21 | 17 | 7 | 4 | 21 | 17 | 13 | 21 | 17 | 3 | 3 |
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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