
Surf Forecasts:
Barra da Lagoa surf forecast from 6 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 9AM (local time) - 3ft (0.9m), 15s period, SSE swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 3PM (local time) - 7ft (2.1m), 11s period, SSE swell with 979 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 9PM (local time) - 4.5ft (1.4m), 6s period with NE 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 Saturday (Aug 08) at 9PM. The primary swell is predicted to be 1.4m and 6s 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 2.1m 11s and forecast to arrive on Thursday (Aug 13) at 3PM. 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 Sunday (Aug 09) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 8th Aug) | 4.5ft (1.4m) 6s |
| Best Surf | 9AM (Wed 12th Aug) | 3ft (0.9m) 15s |
| Most Powerful | 3PM (Thu 13th Aug) | 7ft (2.1m) 11s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on offer.
Honestly, it’s a tough start. For the first five days, from Thursday the 6th right through to Monday the 10th, there’s basically nothing worth paddling out for. The swell is flat or tiny, and the wind is all over the shop. You’re better off doing something else.
The first real glimmer of hope shows up on Tuesday the 11th. Barra da Lagoa (Barra-da-Lagoa) gets a small pulse in the afternoon. We’re talking a SSE swell at 2ft with a period of 13 seconds – that’s a long period groundswell, which usually means some shape but the sets will be spaced out. The combined energy is weak at 70. The wind is light from the S, keeping it clean. The water temp is 66°, which is about average for this time of year. It’s surfable, but very ordinary.
Wednesday the 12th morning is the standout of the whole outlook. The swell builds a touch to 3ft from the SSE, but the period jumps to 15 seconds – that’s a very long period groundswell. The combined energy is moderate at 368. The wind is light from the NW, so clean conditions. It’s not huge, but for this stretch, that’s the best wave shape you’re going to find. Remember, with a period that long, it’ll be better at the point and reef setups than just out front.
After that, it gets messy again. Thursday the 13th afternoon sees a bigger pulse of 7ft from the SSE with an 11-second period, but it comes with a moderate cross-shore wind from the SE and a combined energy of 979. The conditions are marginal, and at that size, it’s pushing into intermediate territory.
Friday the 14th afternoon has a solid 6ft SSE swell with a 14-second period, and the combined energy jumps to 1632 – that’s strong energy. But again, the wind is a cross-shore from the SE, which will chop it up. The size is right, but the quality won’t be.
From there, it’s a long run of poor surf. Saturday the 15th has some decent swell size (6ft and 5ft) but onshore winds ruin it. The rest of the week into the 21st is mostly flat or blown out. The morning of Wednesday the 19th is glassy with light SSW wind, but the swell is only 0.7ft – that’s a flat calm lake.
Best on offer: Wednesday morning, 12th August. It’s the only time the stars nearly align – clean, a bit of long-period groundswell, and manageable size. It’s not a classic, but it’s the best of a quiet run.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Sun morning. Warm (max 23°C on Thu afternoon, min 13°C on Sun morning). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Tue night. Very mild (max 15°C on Tue morning, min 11°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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) | SSE 9 | SSE 12 | SSE 8 | S 6 | S 10 | S 14 | S 14 | S 13 | S 8 | S 12 | S 11 | S 12 | S 12 | S 12 | S 11 | SSE 13 | NE 4 | SSE 15 | NE 5 | SSE 12 |
Wave Graph | ||||||||||||||||||||
45 | 26 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 158 | 19 | 339 | 30 | 0 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross | glassy |
High Tide | 7:29PM0.47m | 12:12PM0.70m | 00:07AM0.47m | 12:55PM0.81m | 00:14AM0.52m | 1:31PM0.88m | 00:26AM0.58m | 2:02PM0.91m | 00:47AM0.66m | 2:26PM0.90m | 1:13AM0.74m | 2:44PM0.86m | 1:42AM0.81m | |||||||
Low Tide | 4:05PM0.39m | 10:22PM0.44m | 3:59AM0.31m | 5:47PM0.36m | 5:14AM0.22m | 6:51PM0.33m | 6:12AM0.12m | 7:35PM0.32m | 7:01AM0.03m | 8:09PM0.33m | 7:44AM-0.04m | 8:38PM0.35m | 8:24AM-0.06m | 9:03PM0.38m | ||||||
— | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | |
5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | |
mm | — | 1 | — | — | — | 1 | — | 2 | 6 | 2 | 3 | — | 1 | 1 | — | — | 10 | 10 | 5 | 1 |
Temp °C | 23 | 21 | 22 | 17 | 15 | 15 | 17 | 17 | 14 | 13 | 12 | 12 | 12 | 13 | 15 | 14 | 13 | 13 | 14 | 15 |
Feels °C | 23 | 21 | 22 | 12 | 12 | 14 | 17 | 17 | 9 | 9 | 8 | 8 | 8 | 9 | 12 | 12 | 13 | 13 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 10 | S 14 | S 14 | NE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 10 | ENE 9 | S 12 | S 11 | S 11 | SSE 12 | SSE 12 | SSE 13 | SSE 12 |
77 | 85 | 162 | 110 | 725 | 1225 | 1081 | 126 | 50 | 50 | 40 | 105 | 90 | 988 | 759 | 586 | 781 | 569 | 847 | 569 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SE 8 | S 10 | — | ENE 8 | ENE 8 | ENE 8 | — | E 15 | — | E 13 | E 13 | E 13 | ENE 8 | ENE 8 | SSE 13 | ENE 8 | SSE 15 | NE 5 | NE 6 |
45 | 18 | 19 | — | 66 | 92 | 76 | — | 4 | — | 4 | 3 | 3 | 47 | 37 | 158 | 11 | 339 | 25 | 38 | |
Swell 3 Height (m) Direction Period (s) | SSE 13 | SSE 12 | SSE 8 | — | — | — | — | — | — | — | E 13 | — | — | E 12 | — | ENE 8 | — | ENE 7 | ENE 7 | NE 6 |
17 | 26 | 7 | — | — | — | — | — | — | — | 4 | — | — | 3 | — | 24 | — | 10 | 9 | 6 | |
Wind waves Height (m) Direction Period (s) | N 3 | N 4 | NW 4 | S 6 | — | — | NE 8 | S 13 | S 8 | S 12 | S 11 | S 12 | S 12 | — | — | — | NE 4 | NE 5 | NE 5 | — |
8 | 17 | 11 | 198 | — | — | 151 | 878 | 699 | 1301 | 987 | 1141 | 1048 | — | — | — | 19 | 29 | 30 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3 | 3 | 4 | 208 | 17 | 3 | 4 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 13 | 0 | 4 | 0 | 4 | 4 |
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.











