
Surf Forecasts:
Barra da Lagoa surf forecast from 5 Sep 2026:
- Best quality surf: Monday 7 Sep, 6PM (local time) - 5ft (1.5m), 9s period, SSE swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 9PM (local time) - 5ft (1.5m), 10s period, SSE swell with 419 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 12AM (local time) - 2ft (0.6m), 10s 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 Saturday (Sep 05) at 12AM. The primary swell is predicted to be 0.6m and 10s 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 1.5m 10s and forecast to arrive on Monday (Sep 07) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Sunday (Sep 06) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 5th Sep) | 2ft (0.6m) 10s |
| Best Surf | 6PM (Mon 7th Sep) | 5ft (1.5m) 9s |
| Most Powerful | 9PM (Mon 7th Sep) | 5ft (1.5m) 10s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a look at what’s coming up for our patch.
Right now, it’s a bit of a rough start. We’re looking at a stretch of small, messy surf through the first part of the week. From Friday the 4th through to Sunday the 13th, it’s pretty grim – mostly poor conditions, tiny swell, and cross or strong winds that are just gonna chop things up. There’s a few days with literally zero swell, so you’re not missing much. It’s a long, quiet spell, mate. Don’t bother paddling out unless you just want a float.
Now, heads up for Sunday the 13th of September – that’s the standout. Barra da Lagoa gets a big pulse of swell. We’re looking at a solid 10 ft from the SSE, with a period around 11-12 seconds. That’s a proper groundswell, some moderate energy (2017 to 2071 combined energy). But here’s the catch – the wave comment says it’s predicted to be too big for this break. That’s serious size, over 8 ft, so this is expert territory only. The wind on Sunday morning is a clean cross-off from the SSW at 15 mph, so the surface will be clean, but that afternoon it swings more cross. If you’re a seasoned charger and know this beach, it could be a wild one. For everyone else, stay safe and watch from the sand. This is definitely not one for beginners.
Monday the 14th is still big, but messy. There’s 8 ft swell in the morning from the SE with a 12-second period, but the wind is light cross, and conditions are marginal. By the afternoon, it’s onshore from the E at 15 mph, so it’s chopped out.
We get a bit of a breather into Tuesday the 15th. Morning looks promising – 5 ft from the SE at 11 seconds, with offshore WSW wind at 6 mph making for clean surf. The combined energy is moderate (447). It’s a decent option for a wider range of surfers, not too big, and clean. That’s your best small-wave window.
Wednesday the 16th morning is glassy with a light NW wind, 3 ft from the SE at 12 seconds. The wave comment says good surf conditions. It’s not big, but it’ll be clean and fun for a longboard or a mid-length.
After that, it fades again into small, ordinary surf with light winds through the rest of the second week, nothing to write home about.
So overall, the real standout is Sunday the 13th for the big swell at Barra da Lagoa – massive but only for experts. If you want something more manageable, Tuesday the 15th morning is your call. The water temp is about 67°, which is normal for this time of year, so you’ll be fine in a shorty.
Rusty.
Short Range ForecastHeavy rain (total 36mm), heaviest during Sat afternoon. Very mild (max 17°C on Fri afternoon, min 10°C on Sun night). Winds increasing (light winds from the S on Fri night, fresh winds from the S by Sun afternoon). | Days 5-7 Weather SummarySome drizzle, heaviest during Tue morning. Warm (max 21°C on Wed morning, min 13°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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) | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 7 | S 9 | S 9 | S 10 | S 9 | E 6 | SSE 10 | SSE 10 | SSE 9 | SSE 12 | SE 9 | ENE 8 | SSE 17 | E 8 | S 14 |
Wave Graph | ||||||||||||||||||||
102 | 64 | 38 | 37 | 19 | 0 | 0 | 0 | 0 | 0 | 77 | 245 | 159 | 88 | 86 | 20 | 0 | 28 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross | glassy | cross | cross | on | cross-off | cross-off | cross | cross-on |
High Tide | 00:12AM0.40m | 12:28PM0.78m | 00:12AM0.46m | 12:59PM0.85m | 00:02AM0.53m | 1:24PM0.88m | 00:07AM0.63m | 1:41PM0.88m | 00:28AM0.73m | 1:53PM0.86m | 00:55AM0.82m | 2:03PM0.83m | 1:25AM0.88m | |||||||
Low Tide | 9:39PM0.36m | 3:51AM0.28m | 6:22PM0.40m | 5:05AM0.18m | 6:44PM0.36m | 6:00AM0.08m | 7:10PM0.35m | 6:45AM0.00m | 7:35PM0.34m | 7:24AM-0.04m | 7:57PM0.33m | 7:58AM-0.04m | 8:16PM0.31m | |||||||
— | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | |
6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | |
mm | 2 | 10 | 9 | 14 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 5 |
Temp °C | 17 | 15 | 13 | 14 | 14 | 13 | 13 | 12 | 14 | 15 | 14 | 16 | 17 | 18 | 21 | 21 | 18 | 19 | 19 | 19 |
Feels °C | 13 | 14 | 10 | 11 | 10 | 8 | 5 | 6 | 10 | 12 | 13 | 16 | 18 | 19 | 20 | 22 | 17 | 19 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | S 9 | ENE 8 | E 8 | ENE 8 | E 8 | E 8 | S 9 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 7 |
69 | 157 | 151 | 132 | 68 | 31 | 22 | 12 | 11 | 388 | 288 | 245 | 159 | 88 | 465 | 381 | 250 | 147 | 118 | 91 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | ENE 8 | SE 10 | E 9 | — | — | ENE 8 | ENE 8 | E 8 | SSW 10 | SSW 9 | S 15 | SSE 9 | SSE 12 | SSE 11 | S 12 | SSE 12 | S 14 |
102 | 64 | 38 | 122 | 16 | 7 | — | — | 13 | 12 | 10 | 19 | 8 | 4 | 66 | 179 | 158 | 137 | 44 | 184 | |
Swell 3 Height (m) Direction Period (s) | S 9 | SE 10 | SE 10 | SE 10 | SSE 14 | — | — | — | — | — | — | — | — | — | SSE 12 | SE 9 | — | SSE 17 | S 9 | S 5 |
2 | 64 | 37 | 37 | 19 | — | — | — | — | — | — | — | — | — | 86 | 20 | — | 28 | 25 | 4 | |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 6 | S 10 | SSE 4 | S 6 | S 7 | S 9 | S 9 | S 10 | — | E 6 | ENE 7 | NE 8 | ENE 8 | — | — | — | S 3 | S 4 | — |
143 | 64 | 226 | 16 | 157 | 302 | 1225 | 1124 | 587 | — | 77 | 326 | 675 | 634 | — | — | — | 6 | 4 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 89 | 0 | 21 | 13 | 25 | 21 | 1551 | 17 | 13 | 21 | 0 | 4 | 0 | 7 | 4 | 11 | 13 | 13 | 16 | 21 |
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.










