Surf Forecasts:
Barra da Lagoa surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 13 Aug, 3AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 14 Aug, 9PM (local time) - 7.5ft (2.3m), 13s period, SE swell with 1,756 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 3AM (local time) - 5.5ft (1.7m), 12s 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 Thursday (Aug 13) at 3AM. The primary swell is predicted to be 1.7m and 12s 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 2.3m 13s and forecast to arrive on Friday (Aug 14) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Tuesday (Aug 18) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 13th Aug) | 5.5ft (1.7m) 12s |
| Best Surf | 3AM (Thu 13th Aug) | 5.5ft (1.7m) 12s |
| Most Powerful | 9PM (Fri 14th Aug) | 7.5ft (2.3m) 13s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright, this is Rusty comin' at you from the local sand. I’ve been staring at the charts for Barra da Lagoa, and let’s be honest, it’s a mixed bag for the next couple of weeks. We’ve got some proper moments, but there’s also a whole lot of flat spells and junk wind to sift through. The first real action worth paddling for kicks off on Thursday the 13th. The water temp is sitting about average for this time of year, so no nasty surprises on that front.
Alright, you want the good stuff? Thursday the 13th morning is your best bet by a long shot. We’ve got a solid 6ft swell rolling in from the SSE, with a nice, long 14-second period. That’s proper groundswell energy here, with a combined energy reading of 1241 – that’s a lot of grunt. The wind is a light cross-offshore from the SSW at 6 mph, keeping the face clean and giving you some push. Expect very good conditions. Just a heads up, with that long period, it’ll hold up better and be less walled-off than a beach break might be otherwise. The vibe is still fun.
Now, fair warning, after that Thursday morning session, the place goes a bit quiet. We’ve got a few days of very little to nothing through the end of that week and into the weekend. The wind turns onshore and the swell just disappears. It’s a blank run from Thursday afternoon right through until the following week.
You’ll want to keep an eye on Friday the 14th afternoon. Don’t sleep on it. The swell comes back to life with another 6ft from the SSE, combined energy of 1235, and check this out – the wind is absolutely glassy, less than 3 mph from the ENE. That’s a major positive. It’ll be clean as a whistle. That long period at 13 seconds will be drawing in again, so expect those nice, lined-up sets. This is your standout second option for the whole period.
After that, we hit another long gap. The chart is basically dead or blown out from Saturday the 15th all the way through most of the following week. There’s a little pulse on Monday the 24th with 5ft SSE swell at 9 seconds, but the wind is messy with a cross-on breeze. It’s more of a kiter’s setup than a clean paddling wave at that point.
The last few days of the run into Thursday the 27th and Friday the 28th are flat as a pancake again, with just a tiny, weak ripple. So, to sum it up: Pounce on Thursday the 13th morning for the biggest, cleanest swell, and make sure you’re back in the water for that glassy Friday the 14th afternoon session. The rest is a waiting game.
Rusty.
Short Range ForecastHeavy rain (total 46mm), heaviest during Fri night. Very mild (max 18°C on Thu morning, min 15°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun morning. Warm (max 21°C on Mon afternoon, min 15°C on Tue afternoon). Winds increasing (light winds from the ENE on Sun afternoon, strong winds from the S by Tue afternoon). | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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) | NNE 4 | SSE 14 | SSE 13 | S 13 | SE 7 | SSE 13 | SSE 13 | NNE 5 | SSE 11 | E 8 | SSE 10 | SSE 10 | SSE 10 | ENE 9 | ENE 9 | SSE 11 | ENE 9 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 9 | 1241 | 1106 | 0 | 121 | 1073 | 889 | 37 | 314 | 0 | 108 | 82 | 82 | 0 | 0 | 22 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross-off | glassy | glassy | cross-on | cross-on | cross | cross-on | cross | on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off |
High Tide | 1:42AM0.81m | 3:01PM0.81m | 2:13AM0.86m | 3:17PM0.77m | 2:46AM0.88m | 3:35PM0.73m | 3:20AM0.86m | 3:54PM0.70m | 3:56AM0.81m | 4:14PM0.67m | 4:34AM0.74m | 4:34PM0.64m | |||||||
Low Tide | 9:03PM0.38m | 8:59AM-0.05m | 9:21PM0.39m | 9:30AM0.01m | 9:29PM0.38m | 9:56AM0.09m | 9:20PM0.35m | 10:12AM0.19m | 9:14PM0.30m | 10:11AM0.28m | 9:31PM0.27m | 10:02AM0.36m | 9:58PM0.27m | ||||||
 |  |  | |  | |  |  | |  | | |  | |  |  | | | | |
 | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — |
 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — |
mm | 1 | — | 1 | 4 | 9 | 7 | 17 | 4 | 3 | — | 1 | 1 | 1 | — | — | — | — | — | 1 |
Temp °C | 15 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 19 | 19 | 20 | 21 | 19 | 16 | 15 | 15 |
Feels °C | 13 | 19 | 17 | 19 | 20 | 20 | 19 | 19 | 18 | 20 | 20 | 20 | 19 | 19 | 20 | 20 | 13 | 8 | 14 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 14 | SSE 13 | S 13 | SSE 13 | SSE 13 | SSE 13 | E 8 | E 8 | E 8 | ESE 8 | E 8 | E 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 781 | 1241 | 1106 | 957 | 901 | 1073 | 889 | 300 | 323 | 328 | 264 | 343 | 576 | 576 | 666 | 606 | 329 | 294 | 222 |
Swell 2 Height (m) Direction Period (s) | ENE 7 | ENE 5 | ENE 5 | ENE 6 | SE 7 | SE 7 | ESE 8 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | S 10 | SSE 10 | SSE 11 | — | — | ENE 9 |
| kJ | 5 | 8 | 11 | 12 | 121 | 162 | 303 | 418 | 314 | 158 | 108 | 82 | 82 | 52 | 35 | 22 | — | — | 237 |
Swell 3 Height (m) Direction Period (s) | ENE 7 | E 8 | — | — | NE 6 | NE 6 | — | E 16 | E 15 | — | E 13 | E 14 | — | — | — | — | — | — | — |
| kJ | 5 | 1 | — | — | 9 | 9 | — | 5 | 5 | — | 14 | 15 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 4 | — | — | SSE 3 | — | — | — | NNE 5 | — | — | NE 7 | NE 7 | — | — | — | — | S 6 | S 8 | S 8 |
| kJ | 9 | — | — | 4 | — | — | — | 37 | — | — | 75 | 75 | — | — | — | — | 158 | 928 | 323 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 0 | 17 | 10 | 0 | 0 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 3 | 56 | 3 | 21 | 72 | 13 |
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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