Surf Forecasts:
Barra da Lagoa surf forecast from 16 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 3PM (local time) - 2.5ft (0.7m), 10s period, SSE swell with 110 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 0.7m 10s and forecast to arrive on Sunday (Aug 16) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Monday (Aug 17) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3PM (Sun 16th Aug) | 2.5ft (0.7m) 10s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
G’day, it’s Rusty here, and I’m looking at the surf outlook for Barra da Lagoa. Honestly, I’ve got to be straight with you – the next week and a half is looking properly bleak. There’s a big stretch of flat or close-to-nothing surf stretching from now, Sunday the 16th of August, all the way through to the morning of Tuesday the 25th of August, with only tiny dribbles and choppy, onshore crud in between. It’s a real dry spell where even the small, weak pulses get wrecked by cross-shore winds. The water temperature is sitting at 65° Fahrenheit, which is spot on average for this time of year, so no surprises there.
Now, if you’ve got some patience, there is a flicker of hope right at the end of this long, quiet run. We get a morning session on Wednesday the 26th of August that stands out as the best bet of the whole forecast. A solid 6 ft swell out of the SSE, with a long period of 13 seconds – proper groundswell energy – is pushing in. The combined energy of all swells directed here is a strong 1193, so there’s plenty of push behind it. The wind that morning is light and variable out of the SE, sitting cross-shore with just a light breeze that kicks up small wind ripples. It’s not perfect, but it’s the closest to clean we’ll see in weeks. Given Barra da Lagoa is a beginner-friendly break that’s fairly exposed and fairly consistent, this swell is right on the limit for beginners – 6 ft can get a bit much for the less experienced. The optimum swell direction here is from the ENE, so this SSE pulse is a bit off-angle, meaning the waves won’t be at their absolute best shape-wise, but the length of those 13-second gaps between sets will make for some proper, pushy lines.
The afternoon of that same day sees that swell drop slightly to 6 ft, with the wind turning more cross-onshore from the SE, making things chop up. But that Wednesday morning slot is your window. We also see a pulse late on the 31st of August – a morning with 5 ft out of the ESE, clean cross-offshore wind from the SW, but with a short period of 8 seconds and combined energy of 274, it’s not in the same league. And with very strong cross-offshore winds of 25 mph whipping up later that day, it’s going to turn wild.
So, to sum it up: you’re looking at a solid two-week stretch of nothing worth paddling for, with one standout morning on Wednesday the 26th of August that could offer some proper, long-period groundswell waves at Barra da Lagoa. Get out there early, and don’t expect perfection, but it’s the only real chance on the board.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun morning. Warm (max 23°C on Tue afternoon, min 18°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Thu night, min 16°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | ENE 8 | N 4 | N 4 | N 4 | ENE 8 | ENE 8 | SE 13 | E 8 | SSE 6 | NNE 4 | SE 6 | SSE 6 | ENE 8 | ENE 8 | S 9 | S 10 | S 12 |
Wave Graph | |||||||||||||||||||||
155 | 110 | 80 | 57 | 0 | 21 | 28 | 10 | 0 | 0 | 7 | 0 | 47 | 11 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-off | cross-off | glassy | cross-on | cross-on | cross | cross-off | cross-on | glassy | cross-off | cross | cross-off |
High Tide | 3:54PM0.70m | 3:56AM0.81m | 4:14PM0.67m | 4:34AM0.74m | 4:34PM0.64m | 5:18AM0.65m | 4:52PM0.60m | 6:21AM0.56m | 1:10PM0.55m | 12:32PM0.61m | 12:33PM0.68m | 11:20PM0.51m | |||||||||
Low Tide | 10:12AM0.19m | 9:14PM0.30m | 10:11AM0.28m | 9:31PM0.27m | 10:02AM0.36m | 9:58PM0.27m | 9:57AM0.44m | 10:32PM0.30m | 9:38AM0.50m | 2:43PM0.54m | 2:21AM0.34m | 4:22AM0.29m | 6:28PM0.44m | ||||||||
6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | |
— | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 3 |
Temp °C | 19 | 19 | 19 | 20 | 20 | 18 | 22 | 23 | 22 | 20 | 20 | 19 | 20 | 20 | 21 | 21 | 19 | 16 | 15 | 15 | 14 |
Feels °C | 19 | 19 | 19 | 19 | 19 | 17 | 21 | 23 | 25 | 19 | 19 | 21 | 19 | 19 | 21 | 19 | 17 | 16 | 14 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 12 |
437 | 395 | 356 | 348 | 33 | 413 | 381 | 313 | 321 | 188 | 142 | 142 | 110 | 81 | 117 | 143 | 181 | 142 | 87 | 67 | 726 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | SSE 9 | S 10 | S 10 | S 9 | S 9 | SE 13 | S 11 | SSE 6 | S 7 | S 8 | S 8 | S 6 | S 8 | — | ENE 8 | ENE 8 |
155 | 110 | 80 | 57 | 50 | 17 | 8 | 8 | 2 | 2 | 7 | 22 | 47 | 34 | 12 | 12 | 41 | 115 | — | 67 | 52 | |
Swell 3 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 12 | — | — | SE 8 | SE 8 | E 14 | E 14 | S 13 | S 7 | S 10 | SE 6 | SE 6 | SSE 6 | S 8 | — | — | — | — |
14 | 12 | 12 | 3 | — | — | 3 | 3 | 4 | 4 | 4 | 4 | 30 | 8 | 9 | 3 | 5 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 8 | ENE 8 | N 4 | N 4 | N 4 | — | S 4 | S 4 | — | — | NNE 4 | N 3 | SSW 3 | — | — | S 9 | S 10 | — |
— | — | — | 238 | 422 | 21 | 28 | 10 | — | 5 | 9 | — | — | 11 | 5 | 1 | — | — | 335 | 615 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 25 | 43 | 3 | 56 | 56 | 43 | 43 | 4 | 13 | 21 | 3 | 3 | 67 | 3 | 4 | 21 | 3 | 13 | 17 | 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.











