Surf Forecasts:
Barra da Lagoa surf forecast from 24 Aug 2026:
- Best quality surf: Monday 31 Aug, 3PM (local time) - 3ft (0.9m), 7s period, SE swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 6PM (local time) - 7ft (2.1m), 15s period, SSE swell with 1,980 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 3PM (local time) - 3ft (0.9m), 7s 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 (Aug 31) at 3PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.5m and 3s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Barra da Lagoa in the next 16 days are 2.1m 15s and forecast to arrive on Wednesday (Aug 26) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 14s period and expected on Monday (Aug 24) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Mon 31st Aug) | 3ft (0.9m) 7s |
| Best Surf | 3PM (Mon 31st Aug) | 3ft (0.9m) 7s |
| Most Powerful | 6PM (Wed 26th Aug) | 7ft (2.1m) 15s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the menu for Barra da Lagoa.
First off, the bad news: we’ve got a flat spell right now. From Monday the 24th of August right through the rest of the month, there’s basically nothing doing. The water is sitting at about 67°F which is pretty average for the time of year, nothing unusual there. But the swell energy is sitting at zero (0) so don’t even bother waxing up. We’re looking at a solid gap of over a week with no surf to speak of.
Things start to look a little more promising come Wednesday the 26th of August. You’ll see a pulse of swell from the SSE pushing in at about 7ft. That’s a solid head-high to slightly overhead and the period is a long 15 seconds, so it’s a proper groundswell with plenty of energy (1847). Downside is the wind is cross-shore from the north, light enough, but it’s not glassy. The morning session is the call here, but the conditions are marginal – not terrible, but not perfect. That swell holds into Wednesday afternoon, still a strong 7ft with a 14-second period (1909), but the wind swings a bit and puts a cross-chop on it. If you’re an experienced surfer, you’ll find something, but it’s not the cleanest.
Thursday the 27th drops off a bit to 5ft (876) and the wind is cross-onshore, making it choppy. Not worth getting excited about.
Friday the 28th sees the swell drop to ankle-snappers, and the wind is on it. Honestly, from the 27th through to the 1st of September, it’s a write-off.
Now, here’s the standout. Mark your calendars for Wednesday morning the 2nd of September. This is the one. The swell comes back up to 7ft from the SSE, with a period of 11 seconds (1049). The energy is solid and the wind is glassy – dead calm, from the north. That means clean, glassy conditions on a decent-sized swell. This is the best call of the entire forecast. The wave quality is expected to be very good. The only thing to keep in mind is that this is a beach break setup, and with a long period swell like that, it might be a bit straight and dumpy on the sandbanks, but the glassy conditions will make it worthwhile. The break is fairly exposed to the swell, so it’ll pick up the energy. Keep in mind crowds are often here, so expect some company.
After that, the swell fades again through the rest of the first week of September. Thursday the 3rd has some 5ft leftovers but the wind is cross-shore, not terrible but not the same quality. By Friday the 4th, it’s down to 4ft and the conditions are ordinary.
The second week is a bit of a bust. From the 5th of September onwards, the swell is tiny and the wind is generally onshore or cross-onshore with rain. There’s a brief moment on the 7th and 8th with some clean, cross-offshore winds from the south, but the swell is only 2ft to 3ft at best, so it’s not going to be worth the paddle.
So, the clear winner is Wednesday morning the 2nd of September. Glassy, 7ft, long-period groundswell. That’s your window.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 18°C on Wed morning, min 12°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sat night. Warm (max 22°C on Sat afternoon, min 18°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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 14 | SSE 14 | SSE 13 | S 13 | S 12 | SE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 6 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | 508 | 1847 | 1900 | 1670 | 876 | 606 | 299 | 117 | 68 | 44 | 39 | 19 | 9 | 9 | 9 | 47 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | glassy | glassy | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | glassy | cross-on | cross |
High Tide | 1:07PM0.80m | 00:24AM0.69m | 1:29PM0.84m | 00:49AM0.77m | 1:51PM0.87m | 1:16AM0.83m | 2:12PM0.88m | 1:43AM0.89m | 2:34PM0.87m | 2:12AM0.92m | 2:58PM0.85m | 2:44AM0.92m | 3:22PM0.81m | ||||||||
Low Tide | 7:03PM0.34m | 6:50AM0.06m | 7:27PM0.30m | 7:24AM0.00m | 7:52PM0.27m | 7:57AM-0.03m | 8:18PM0.26m | 8:30AM-0.04m | 8:45PM0.25m | 9:04AM-0.01m | 9:11PM0.25m | 9:38AM0.05m | 9:36PM0.26m | ||||||||
6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | |
— | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | |
mm | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | 1 | — | 3 | 3 | — | 10 |
Temp °C | 13 | 14 | 14 | 15 | 16 | 16 | 18 | 18 | 18 | 20 | 20 | 19 | 21 | 20 | 19 | 20 | 22 | 19 | 19 | 19 | 19 |
Feels °C | 11 | 11 | 12 | 13 | 14 | 15 | 17 | 18 | 18 | 20 | 19 | 18 | 19 | 18 | 19 | 20 | 23 | 18 | 21 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SSE 14 | SSE 14 | SSE 13 | S 13 | S 12 | SSE 12 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | ENE 7 | ENE 7 | SSE 11 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 10 |
2148 | 2190 | 1308 | 957 | 761 | 550 | 1847 | 1900 | 1670 | 876 | 606 | 125 | 294 | 68 | 439 | 466 | 484 | 589 | 461 | 440 | 391 | |
Swell 2 Height (m) Direction Period (s) | ENE 7 | NE 7 | NE 7 | NE 7 | — | SE 16 | — | — | — | — | — | SSE 12 | SSE 12 | — | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 6 |
5 | 2 | 2 | 2 | — | 508 | — | — | — | — | — | 299 | 117 | — | 44 | 39 | 19 | 9 | 9 | 9 | 47 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 6 | SSE 10 | S 7 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 9 | 14 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 6 | NNE 3 | — | NE 4 | NE 5 | NE 6 | NE 6 | — | N 4 | ENE 8 | — | S 10 | S 4 | — | SSW 3 | S 6 | — |
— | — | — | — | 4 | 4 | — | 9 | 45 | 85 | 91 | — | 27 | 392 | — | 73 | 22 | — | 1 | 3 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 17 | 4 | 4 | 5 | 3 | 4 | 4 | 3 | 3 | 25 | 25 | 3 | 60 | 3 | 13 | 13 | 13 | 3 | 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.











