Surf Forecasts:
Barra da Lagoa surf forecast from 22 Aug 2026:
- Best quality surf: Friday 28 Aug, 6PM (local time) - 2ft (0.6m), 11s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 6AM (local time) - 7.5ft (2.3m), 15s period, SSE swell with 2,391 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 6PM (local time) - 2ft (0.6m), 11s 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 Friday (Aug 28) at 6PM. The primary swell is predicted to be 0.6m and 11s 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 15s and forecast to arrive on Wednesday (Aug 26) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 13s period and expected on Sunday (Aug 23) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 28th Aug) | 2ft (0.6m) 11s |
| Best Surf | 6PM (Fri 28th Aug) | 2ft (0.6m) 11s |
| Most Powerful | 6AM (Wed 26th Aug) | 7.5ft (2.3m) 15s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’m gonna be straight with you – the next 16 days at Barra da Lagoa are a proper average run. We’ve got a long dry spell to start, so don’t bother paddling out until Wednesday the 26th of August. Even then, it’s not going to be anything to write home about.
The first real sign of life shows up on Wednesday the 26th. We’ve got a solid pulse of swell arriving, with chest to head-high sets pushing 8ft from the SSE. The combined energy is strong (2299), which tells you there’s some grunt in the water. But here’s the rub – the wind is a light cross-onshore northerly, keeping things a bit lumpy. The period is a very long 15 seconds, so this is proper groundswell. That long period can make a beach break like Barra da Lagoa a bit wonky, with waves jacking up and closing out, but if you find a bank, you’ll get some good ones. The water temp is sitting at 67°F, which is about average for this time of year, so nothing unusual there.
Thursday the 27th sees the swell drop a touch to 5ft, still from the SSE, with a period of 13 seconds. The energy is still moderate (768). Morning winds are a light cross-shore northerly, so it’s workable, but the quality is marginal. By afternoon, the wind picks up and goes cross-onshore, stuffing it up.
The rest of the week is pretty grim. Friday the 28th and Saturday the 29th are small, weak, and messy. The only real highlight comes on Tuesday the 1st of September. We get a small but punchy 6ft SE swell, with a short period of 7 seconds. That’s windswell, but the wind is glassy calm in the morning, so it’ll be clean as a whistle. The energy is moderate (409), so there’s enough to push through. The problem is the short period – waves will be a bit soft and crumbly. It’s not a standout by any stretch.
After that, it’s a slow fade. Wednesday the 2nd through Sunday the 6th of September are all small, with waist-high junk and mostly onshore or cross-off winds. Nothing to get excited about.
If you’ve got to go, Wednesday the 26th morning is your best shot for a bit of size, but you’ll be battling the onshore breeze. The calm morning of Tuesday the 1st of September is the cleanest window, but the waves are small. Nothing here is a standout, just a couple of “okay” sessions.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Sat morning, min 11°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed morning. Warm (max 20°C on Thu morning, min 14°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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) | S 10 | S 10 | S 10 | S 11 | S 12 | S 14 | S 14 | SSE 14 | S 13 | SSE 13 | SE 22 | SE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 940 | 2299 | 1900 | 1314 | 768 | 528 | 304 | 123 | 107 | 65 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | glassy | cross-off | cross-on | cross-off | off | cross-on | glassy | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross | glassy |
High Tide | 12:33PM0.68m | 11:20PM0.51m | 12:47PM0.75m | 11:56PM0.60m | 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 | |||||||
Low Tide | 6:28PM0.44m | 5:27AM0.21m | 6:42PM0.38m | 6:12AM0.13m | 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 | ||||||||
 | |  |  | |  | | |  | | | |  | | | | |  | |  | | |
 | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — |
 | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | 1 | 2 | 1 | 2 |
Temp °C | 14 | 13 | 13 | 14 | 14 | 13 | 14 | 14 | 14 | 16 | 16 | 17 | 17 | 18 | 18 | 20 | 20 | 19 | 20 | 20 | 19 |
Feels °C | 11 | 9 | 11 | 12 | 11 | 9 | 12 | 11 | 13 | 14 | 13 | 17 | 17 | 18 | 19 | 18 | 18 | 19 | 21 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 9 | S 10 | S 11 | S 12 | S 14 | S 14 | SSE 14 | S 13 | SSE 13 | SSE 12 | SSE 12 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | ENE 7 | ENE 8 | ENE 8 | ENE 9 |
| kJ | 54 | 65 | 557 | 695 | 1080 | 2505 | 2462 | 2221 | 1465 | 995 | 890 | 550 | 2299 | 1900 | 1314 | 768 | 528 | 163 | 270 | 322 | 394 |
Swell 2 Height (m) Direction Period (s) | — | — | ENE 8 | NE 8 | ENE 8 | ENE 7 | ENE 7 | — | — | — | SE 22 | SE 16 | — | — | — | ENE 7 | ENE 7 | SSE 12 | SSE 12 | SSE 11 | SSE 11 |
| kJ | — | — | 40 | 16 | 11 | 5 | 5 | — | — | — | 18 | 940 | — | — | — | 150 | 142 | 304 | 123 | 107 | 65 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 10 | S 10 | — | — | — | — | — | — | — | — | — | — | — | NE 5 | NE 6 | — | — | N 4 | NW 3 | — | — |
| kJ | 849 | 725 | — | — | — | — | — | — | — | — | — | — | — | 38 | 141 | — | — | 9 | 2 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 38 | 3 | 10 | 17 | 13 | 4 | 21 | 4 | 4 | 5 | 3 | 4 | 4 | 3 | 5 | 56 | 3 | 3 | 61 | 0 |
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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