Surf Forecasts:
Barra da Lagoa surf forecast from 6 Sep 2026:
- Best quality surf: Monday 7 Sep, 6PM (local time) - 5ft (1.6m), 10s period, SSE swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 3AM (local time) - 5ft (1.6m), 10s period, SE swell with 527 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 6PM (local time) - 5ft (1.6m), 10s 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 (Sep 07) at 6PM. The primary swell is predicted to be 1.6m and 10s 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 1.6m 10s and forecast to arrive on Tuesday (Sep 08) at 3AM. Winds are predicted to be cross-offshore 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+) | 6PM (Mon 7th Sep) | 5ft (1.6m) 10s |
| Best Surf | 6PM (Mon 7th Sep) | 5ft (1.6m) 10s |
| Most Powerful | 3AM (Tue 8th Sep) | 5ft (1.6m) 10s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a proper look at what's on the menu for Barra da Lagoa over the next couple of weeks.
First off, I gotta be honest with you – the next week or so is looking pretty grim. We've got a long, dry spell of flatness and poor conditions ahead. From the start of the outlook right through to the morning of Monday the 14th, there's just nothing to get excited about. The waves are either nonexistent or blown out. The only real pulse of energy comes in around Tuesday the 8th with a small 4ft swell from the east, but it's a short period, weak 6-second wind swell, and the combined energy is a measly (212) – not enough to get you out of bed. The wind is clean off the rocks, but the size and quality are just too ordinary.
The real standout, the one you need to circle on your calendar, is Monday the 14th. This is the goods. We're looking at a solid 7ft swell from the SSE, and the wind is predicted to be glassy – dead calm, just a slight air. That is a rare treat. The water temp is sitting at 67°F, which is about average for this time of year, so no surprises there. The combined energy is a massive (1288), meaning there's some serious power in the water. This is a long period groundswell with a 12-second interval, which will bring in some nice, clean lines. Because of that long period, it'll be a touch more challenging at the beach break, but the clean conditions and the power will make it a top-shelf session. The afternoon holds up well too, with 7ft swell and still glassy, so you can easily make a day of it. This is going to be a busy one, as the crowd factor is 'often', so get there early.
Backing up the Monday, Tuesday the 15th is still good, with a 5ft south-south-east swell and a clean cross-off wind in the morning. The power is still substantial (823), so you'll get plenty of push. The afternoon gets a bit messy with a cross-shore wind and a bit of chop, so the morning is the clear winner.
After that, the swell drops off sharply. Wednesday the 16th still has some rideable 3ft waves, but it's nothing special, and then we're back to flat and poor conditions through to the end of the period. The last week of the forecast is a write-off, with no real swell and onshore winds.
So, to sum it up: suffer through the flat spell, and be ready to pounce on Monday the 14th. That's your best shot by a long way.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 18°C on Tue morning, min 10°C on Sun night). Winds decreasing (fresh winds from the S on Sun afternoon, calm by Mon afternoon). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Warm (max 21°C on Wed morning, min 16°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
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 | S 7 | S 9 | S 10 | S 10 | S 10 | SSE 10 | E 6 | SSE 10 | SSE 9 | SSE 12 | ENE 8 | ENE 8 | SSE 16 | S 15 | S 13 | E 8 | NE 4 | SSE 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 36 | 19 | 0 | 0 | 0 | 0 | 0 | 455 | 122 | 197 | 126 | 237 | 0 | 0 | 51 | 0 | 0 | 0 | 13 | 6 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross | cross | cross-on | glassy | cross | cross-on | glassy | cross-on | cross-on | cross |
High Tide | 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 | 2:17PM0.80m | 1:56AM0.91m | |||||||
Low Tide | 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 | 8:29AM0.00m | 8:30PM0.29m | |||||||
 |  |  | |  | | | | | | |  | | |  | |  | | | | |
 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — |
 | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — |
mm | 6 | 3 | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | 11 |
Temp °C | 14 | 15 | 13 | 13 | 12 | 13 | 14 | 14 | 18 | 18 | 17 | 21 | 20 | 18 | 20 | 20 | 19 | 21 | 19 | 21 |
Feels °C | 11 | 13 | 7 | 5 | 5 | 10 | 11 | 13 | 16 | 16 | 17 | 20 | 19 | 19 | 22 | 21 | 22 | 21 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | S 9 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | S 10 | SSE 10 | SSE 10 | SSE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 |
| kJ | 162 | 68 | 20 | 23 | 12 | 12 | 423 | 455 | 288 | 197 | 493 | 404 | 322 | 223 | 190 | 195 | 165 | 137 | 144 | 176 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | SE 10 | E 9 | — | — | E 8 | E 8 | E 8 | SSE 12 | SSW 9 | SSE 9 | SSE 12 | SSE 12 | SSE 12 | S 12 | S 15 | S 13 | S 12 | S 11 | S 11 |
| kJ | 122 | 17 | 7 | — | — | 12 | 11 | 10 | 90 | 8 | 126 | 237 | 224 | 189 | 184 | 272 | 168 | 102 | 64 | 37 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSE 14 | — | — | — | — | — | — | — | S 16 | SE 15 | SSE 9 | E 16 | E 14 | SSE 16 | E 14 | E 14 | E 13 | SSE 5 | SSE 5 |
| kJ | 36 | 19 | — | — | — | — | — | — | — | 5 | 9 | 48 | 5 | 4 | 51 | 4 | 4 | 14 | 9 | 6 |
Wind waves Height (m) Direction Period (s) | — | S 9 | S 7 | S 9 | S 10 | S 10 | — | NE 4 | E 6 | ENE 6 | — | — | — | — | — | — | — | — | NE 4 | — |
| kJ | — | 175 | 440 | 1380 | 1223 | 600 | — | 5 | 122 | 220 | — | — | — | — | — | — | — | — | 13 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 13 | 13 | 21 | 406 | 21 | 13 | 21 | 0 | 0 | 5 | 7 | 3 | 3 | 3 | 3 | 21 | 3 | 3 | 5 | 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.
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