Surf Forecasts:
Barra da Lagoa surf forecast from 30 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 12PM (local time) - 5ft (1.5m), 8s period, ESE swell with glassy winds.
- Most powerful swell: Tuesday 1 Sep, 9PM (local time) - 8ft (2.4m), 8s period, SSE swell with 705 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 6AM (local time) - 3.5ft (1.1m), 6s 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 Monday (Aug 31) at 6AM. The primary swell is predicted to be 1.1m and 6s 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 2.4m 8s and forecast to arrive on Tuesday (Sep 01) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 11s period and expected on Sunday (Sep 06) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 31st Aug) | 3.5ft (1.1m) 6s |
| Best Surf | 12PM (Tue 1st Sep) | 5ft (1.5m) 8s |
| Most Powerful | 9PM (Tue 1st Sep) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s happening at Barra da Lagoa.
Right off the bat, I gotta be honest – the next few days are pretty flat. We’ve got a real slow start, no surf worth paddling out for on Sunday the 30th of August. Monday the 31st is where we finally see a pulse, but it’s nothing to get excited about. We’ll see a 4ft swell from the SE rolling in Monday morning with a light cross-offshore breeze, so the surface will be clean. The combined energy is still weak at 169 (moderate), but the swell period is short at 7 seconds, so it’s a bit weak and wobbly. That afternoon, the wind swings WSW and goes glassy, with the swell bumping up to 5ft from the ESE, period staying short at 7 seconds, energy at 228 (moderate). Still just surfable, but very ordinary.
The best bet in the whole 16-day window, and I mean the only real standout, is waiting for us on Sunday the 13th of September in the afternoon. That’s a long way off, so keep an eye on the charts, but it looks promising. We’ve got a 7ft swell from the ESE with a period of 8 seconds, and the combined energy hits 624 (strong). The wind is light out of the south, cross-offshore, making for clean conditions. That’s got some push and will be fun for anyone who’s comfortable in head-high plus surf. Water temperature is sitting at 66°F, which is about average for this time of year, so no surprises there.
For the rest of the run, it’s mostly small, weak, or blown out. Tuesday the 1st of September sees a 5ft swell from the ESE with a cross breeze, but it’s marginal. Wednesday the 2nd picks up a bit with a 5ft SE swell and a moderate cross-offshore in the morning, energy at 412 (moderate), but the afternoon gets chopped up by a 25 km/h SSE wind. Thursday the 3rd and Friday the 4th are poor with dropping swell and onshore winds. Then we hit a flat spell from the 5th to the 11th of September, with barely a ripple. The 12th of September morning shows a tiny 4ft ENE swell with a 6-second period, clean but weak.
So, to sum it up: the first week is a struggle, with a long gap of no surf from the 5th to the 11th. Patience is the key. The Sunday the 13th afternoon session is the one to circle on the calendar. Everything else is a skunk or a gamble.
Rusty.
Short Range ForecastHeavy rain (total 114mm), heaviest during Mon night. Warm (max 22°C on Tue morning, min 15°C on Tue night). Winds increasing (calm on Mon afternoon, fresh winds from the SSW by Tue afternoon). | Days 5-7 Weather SummaryModerate rain (total 19mm), heaviest on Sat morning. Very mild (max 19°C on Fri morning, min 14°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 6 | SSE 6 | ESE 7 | SE 7 | ESE 8 | ESE 8 | SE 8 | SSE 8 | SE 8 | SE 8 | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | S 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 15 | 28 | 82 | 178 | 158 | 230 | 355 | 700 | 479 | 375 | 343 | 268 | 222 | 173 | 122 | 79 | 33 | 13 | 12 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | glassy | glassy | glassy | cross-off | glassy | cross-off | cross-off | cross | glassy | cross | cross-on | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:22PM0.81m | 3:19AM0.90m | 3:49PM0.75m | 3:58AM0.84m | 4:16PM0.68m | 4:43AM0.76m | 4:43PM0.60m | 5:40AM0.67m | 5:10PM0.52m | 00:11AM0.36m | 11:53AM0.67m | 00:12AM0.40m | 12:28PM0.78m | 00:12AM0.46m | ||||||
Low Tide | 9:36PM0.26m | 10:15AM0.15m | 9:54PM0.27m | 10:59AM0.27m | 9:48PM0.29m | 12:22PM0.39m | 9:33PM0.30m | 9:27AM0.53m | 2:33PM0.47m | 9:35PM0.32m | 9:39PM0.36m | 3:51AM0.28m | 6:22PM0.40m | |||||||
 |  |  | | |  |  |  |  | | | | | | | |  | |  | | |
 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — |
mm | 2 | 36 | 12 | 25 | 37 | — | 2 | — | — | — | — | — | — | — | — | — | 2 | 17 | 2 | 1 |
Temp °C | 18 | 18 | 17 | 18 | 18 | 22 | 22 | 17 | 18 | 17 | 16 | 18 | 18 | 16 | 19 | 19 | 16 | 15 | 15 | 15 |
Feels °C | 19 | 19 | 19 | 21 | 19 | 23 | 23 | 12 | 14 | 13 | 16 | 13 | 13 | 13 | 18 | 17 | 14 | 14 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | E 8 | ENE 8 | ENE 8 | SE 7 | ESE 8 | ESE 8 | SE 8 | ENE 8 | SE 8 | ENE 10 | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 | NE 5 | ENE 8 | ENE 8 | ENE 8 | E 8 |
| kJ | 161 | 212 | 180 | 178 | 158 | 230 | 355 | 36 | 479 | 163 | 343 | 268 | 222 | 173 | 122 | 27 | 76 | 85 | 65 | 35 |
Swell 2 Height (m) Direction Period (s) | S 5 | SSE 6 | SSE 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | SE 10 | SE 10 | SE 9 | SE 9 | — |
| kJ | 5 | 28 | 78 | 160 | 108 | 58 | 55 | 103 | 201 | 172 | 94 | 73 | 64 | 61 | 57 | 79 | 33 | 13 | 12 | — |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SE 9 | — | — | — | SE 10 | — | NE 8 | — | — | — | — | S 8 | S 8 | S 7 | E 8 | S 16 | S 14 | — | — |
| kJ | 9 | 3 | — | — | — | 33 | — | 29 | — | — | — | — | 1 | 1 | 1 | 36 | 5 | 15 | — | — |
Wind waves Height (m) Direction Period (s) | SE 6 | — | ESE 7 | — | — | — | S 4 | SSE 8 | — | SE 8 | — | N 3 | NNE 4 | N 4 | NNE 5 | SSE 2 | S 5 | S 5 | S 6 | S 9 |
| kJ | 15 | — | 82 | — | — | — | 27 | 700 | — | 375 | — | 4 | 31 | 41 | 31 | 2 | 43 | 100 | 247 | 1138 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 16 | 16 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 89 | 0 | 3 | 67 | 3 | 0 | 89 | 16 | 13 | 21 | 17 |
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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