Surf Forecasts:
Barra da Lagoa surf forecast from 21 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 9AM (local time) - 6ft (1.8m), 14s period, SSE swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 6AM (local time) - 6ft (1.8m), 14s period, SSE swell with 1,393 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 9AM (local time) - 3.5ft (1.1m), 16s 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 Monday (Aug 24) at 9AM. The primary swell is predicted to be 1.1m and 16s 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 1.8m 14s and forecast to arrive on Wednesday (Aug 26) at 6AM. 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 10s period and expected on Friday (Aug 21) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 24th Aug) | 3.5ft (1.1m) 16s |
| Best Surf | 9AM (Wed 26th Aug) | 6ft (1.8m) 14s |
| Most Powerful | 6AM (Wed 26th Aug) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Grab a coffee and let’s have a look at what’s cooking for Barra da Lagoa over the next couple of weeks.
Honestly, I’ve gotta level with you – it’s a tough start. The first few days are a total write-off. Friday the 21st through Sunday the 23rd are flat with no surf to speak of. You’d be wasting your time even looking at the ocean. The water temp is sitting at about 67°, which is pretty standard for this time of year, nothing wild.
Things finally stir to life on Monday the 24th. For the morning session, we’ve got a little 4 ft swell rolling in from the SSE with a very long period of 16 seconds. That’s proper groundswell energy, and the combined energy is a moderate 643. The wind is light and clean from the south, so it’ll be tidy. But that long period can make a beach break like Barra a bit straight and fat – it’s better suited to a point or reef. Still, it’s the first real chance for a paddle. Just a heads up, the afternoon goes flat again.
The standout moment, and I mean the real highlight, is Wednesday morning the 26th. We’ve got a solid 6 ft swell from the SSE, with a period of 14 seconds and a combined energy of 1355 – that’s strong wave energy. The wind is glassy, dead calm from the NNW. Absolute perfection on the surface. This is a wave for experienced surfers only though; 6 ft with that kind of energy is pushing it for a beginner. The morning is the window, as the afternoon turns a bit messy with a light cross-onshore breeze and a few rain drops. This is the best day on offer, hands down.
Thursday the 27th is still rideable in the morning with 5 ft SSE swell, but the wind is cross-shore and a bit bumpy. By Friday the 28th, we’re back to small, weak waves, and then it’s a long, flat run all the way through to the end of the first week of September. There’s a tiny blip on Friday the 4th of September with a weak 2 ft swell and a combined energy of 117, but it’s nothing to get excited about. And then Saturday the 5th of September shows a bigger 7 ft SSE swell in the afternoon, but the wind is cross-onshore and choppy, so it’s gonna be a messy, blown-out affair. Not recommended.
So, the long and short of it: get out there on Wednesday morning the 26th if you’ve got the skills. Otherwise, the rest of the window is either flat or ordinary. It’s a bit of a dry spell, but that’s the way it goes sometimes.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Fri morning, min 12°C on Sat afternoon). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed morning. Very mild (max 19°C on Wed night, min 13°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | ENE 7 | S 8 | S 10 | S 10 | S 10 | S 10 | S 11 | S 12 | S 13 | SSE 16 | SSE 15 | SSE 14 | SSE 13 | SSE 16 | SSE 12 | SSE 14 | SSE 13 | SSE 14 | SSE 13 | SSE 13 | SSE 12 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 643 | 0 | 0 | 0 | 164 | 680 | 1336 | 922 | 1159 | 669 | 528 | 320 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross-off | cross-off | cross | glassy | glassy | cross | cross-off | cross-off | cross-on | glassy | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross |
High Tide | 12:32PM0.61m | 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 | ||||||||
Low Tide | 4:22AM0.29m | 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 | |||||||||
6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | |
— | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | — | — | — |
Temp °C | 19 | 17 | 14 | 13 | 13 | 12 | 14 | 14 | 13 | 14 | 14 | 14 | 16 | 16 | 16 | 17 | 18 | 19 | 20 | 20 | 19 |
Feels °C | 17 | 13 | 10 | 10 | 9 | 10 | 12 | 10 | 9 | 12 | 11 | 13 | 14 | 14 | 15 | 18 | 18 | 19 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 9 | S 10 | S 11 | S 12 | S 13 | S 13 | SSE 15 | SSE 14 | SSE 13 | S 13 | SSE 12 | SSE 14 | SSE 13 | SSE 14 | SSE 13 | SSE 13 | ENE 7 |
54 | 86 | 65 | 54 | 65 | 504 | 639 | 1004 | 2084 | 1783 | 2347 | 1633 | 1127 | 825 | 680 | 1336 | 922 | 1159 | 669 | 528 | 132 | |
Swell 2 Height (m) Direction Period (s) | S 8 | NNW 4 | — | — | ENE 9 | ENE 8 | NE 8 | NE 8 | ENE 7 | SSE 16 | ENE 7 | — | — | SSE 16 | SE 16 | — | SE 16 | — | ENE 7 | NE 7 | SSE 12 |
57 | 1 | — | — | 65 | 39 | 16 | 15 | 5 | 643 | 5 | — | — | 164 | 502 | — | 219 | — | 159 | 139 | 320 | |
Swell 3 Height (m) Direction Period (s) | S 6 | — | — | — | — | — | — | — | — | ENE 7 | — | — | — | — | — | — | — | — | — | — | — |
1 | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WNW 4 | S 8 | S 10 | S 10 | S 10 | — | — | S 3 | — | — | — | — | — | — | — | NE 4 | NE 6 | NE 6 | — | NE 7 | N 3 |
7 | 265 | 1155 | 832 | 725 | — | — | 5 | — | — | — | — | — | — | — | 19 | 80 | 149 | — | 192 | 8 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 21 | 17 | 13 | 17 | 4 | 4 | 38 | 13 | 0 | 21 | 4 | 4 | 3 | 3 | 0 | 3 | 25 | 3 | 56 | 3 |
Best forecast wave conditions in Florianópolis | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











