
Surf Forecasts:
Barra da Lagoa surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 12AM (local time) - 6ft (1.9m), 12s period, SSE swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 12PM (local time) - 6ft (1.9m), 14s period, SSE swell with 1,303 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 12AM (local time) - 6ft (1.9m), 12s 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 Wednesday (Aug 12) at 12AM. The primary swell is predicted to be 1.9m and 12s period. 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 1.9m 14s and forecast to arrive on Thursday (Aug 13) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 12s period and expected on Tuesday (Aug 11) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 12th Aug) | 6ft (1.9m) 12s |
| Best Surf | 12AM (Wed 12th Aug) | 6ft (1.9m) 12s |
| Most Powerful | 12PM (Thu 13th Aug) | 6ft (1.9m) 14s |
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 the cards for Barra da Lagoa over the next couple of weeks.
Right off the bat, I gotta be straight with you – the surf is pretty much dead for a solid stretch after today. We’re looking at a big gap with nothing worth paddling out for until Thursday the 12th of August rolls around, and even then it’s just marginal. The real wait is on.
Thursday 13th August morning is where it finally starts to look interesting. We’ve got a clean, 6ft swell rolling in from the SSE with a long 14 second period – that’s proper groundswell energy. The wind is a light cross-offshore from the south, so it’ll be clean. The combined energy is strong at 1241, so there’s some decent power behind it. Keep in mind, with that period the waves might wall up a bit on the beach, but if you pick your peak, it’ll be worth it. This is the standout window for the first week.
The Thursday afternoon holds up okay, but the morning is the pick.
Then we drift into a few days of smaller, less organised stuff. Friday the 14th drops to 6ft with a shorter 13 second period, and the wind is a bit of a mess – cross-shore and onshore at times. The energy drops to 1077, still moderate but not as punchy. By Saturday and Sunday the swell fades to around 4ft to 4ft with a short 8 second period – weak energy in the 160-280 range. It’s surfable but ordinary.
From Monday the 17th right through until late in the month, we hit another dry spell. There’s barely a ripple – flat and poor conditions dominate. You’ll see some glassy mornings on the 22nd and 23rd, but with tiny swell – 2ft to 2ft – there’s just nothing to ride.
Now hold on, because the real firecracker is hiding at the end of the outlook. Tuesday 25th August afternoon brings a 8ft SSE swell with a 14 second period. The combined energy is a massive 2056 – that’s strong, powerful stuff. The wind is a light cross-offshore from the southwest, so it’ll be clean. This is expert territory – over 8ft is for pros, and at 8ft it’s solid, definitely not for beginners. This is the standout of the whole forecast, but it’s deep in the second week, so keep an eye on it – long-range calls can shift.
Wednesday 26th August morning still looks good with a clean 6ft swell and 1053 energy, a nice follow-up session.
So, if you’re patient, the best windows are Thursday 13th morning and that big Tuesday 25th afternoon. The rest of the time, honestly, leave the board in the car and wait for the forecasts to change. It tends not to stay this quiet for long around here.
Stay wet,
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Very mild (max 19°C on Thu morning, min 12°C on Tue afternoon). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 34mm), heaviest during Fri night. Warm (max 21°C on Sat afternoon, min 17°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 12 | S 12 | S 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
Wave Graph | |||||||||||||||||||
0 | 0 | 0 | 985 | 985 | 887 | 692 | 1241 | 1122 | 0 | 1077 | 989 | 866 | 156 | 188 | 188 | 149 | 176 | 191 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | glassy | cross-on | cross | cross | cross-off | cross-off | glassy | cross | cross-on | cross | cross-off | cross | cross | cross-on | cross-on | cross |
High Tide | 00:47AM0.66m | 2:26PM0.90m | 1:13AM0.74m | 2:44PM0.86m | 1:42AM0.81m | 3:01PM0.81m | 2:13AM0.86m | 3:17PM0.77m | 2:46AM0.88m | 3:35PM0.73m | 3:20AM0.86m | 3:54PM0.70m | |||||||
Low Tide | 7:44AM-0.04m | 8:38PM0.35m | 8:24AM-0.06m | 9:03PM0.38m | 8:59AM-0.05m | 9:21PM0.39m | 9:30AM0.01m | 9:29PM0.38m | 9:56AM0.09m | 9:20PM0.35m | 10:12AM0.19m | 9:14PM0.30m | |||||||
— | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | |
— | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | |
mm | — | — | 1 | 2 | — | — | — | — | — | 1 | 2 | 1 | 15 | 5 | 4 | 5 | 1 | — | — |
Temp °C | 14 | 14 | 13 | 13 | 14 | 17 | 16 | 19 | 19 | 18 | 18 | 19 | 18 | 20 | 21 | 19 | 19 | 20 | 20 |
Feels °C | 9 | 12 | 12 | 12 | 12 | 14 | 14 | 18 | 18 | 20 | 19 | 20 | 18 | 20 | 21 | 20 | 19 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | S 12 | S 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
38 | 1080 | 940 | 985 | 985 | 887 | 692 | 1241 | 1122 | 1109 | 1077 | 989 | 866 | 411 | 188 | 188 | 149 | 176 | 191 | |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 7 | ENE 7 | ENE 7 | NE 5 | NE 5 | NE 6 | NE 6 | SE 7 | NE 6 | SE 8 | S 11 | SSE 11 | SSE 10 | NE 7 | S 10 |
38 | 13 | 12 | 11 | 8 | 5 | 5 | 14 | 18 | 16 | 8 | 73 | 8 | 156 | 251 | 191 | 136 | 50 | 73 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 8 | E 8 | — | E 8 | NE 6 | ENE 9 | ENE 9 | ENE 10 | NE 6 | NE 7 | SSE 10 | E 13 |
— | — | — | — | — | — | — | 1 | 1 | — | 1 | 8 | 7 | 32 | 36 | 10 | 53 | 106 | 12 | |
Wind waves Height (m) Direction Period (s) | S 12 | — | — | — | NNE 3 | NNE 3 | NNE 4 | — | S 3 | — | — | — | — | NNE 6 | N 3 | — | — | — | NE 8 |
1544 | — | — | — | 3 | 4 | 21 | — | 8 | — | — | — | — | 6 | 2 | — | — | — | 62 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 13 | 4 | 0 | 4 | 56 | 25 | 0 | 17 | 4 | 4 | 3 | 4 | 0 | 3 | 3 | 199 | 16 | 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.











