Surf Forecasts:
Barra da Lagoa surf forecast from 12 Aug 2026:
- Best quality surf: Friday 14 Aug, 9AM (local time) - 6.5ft (2.0m), 13s period, SSE swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 6PM (local time) - 7ft (2.1m), 13s period, SSE swell with 1,551 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 6AM (local time) - 5.5ft (1.7m), 14s 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 Thursday (Aug 13) at 6AM. The primary swell is predicted to be 1.7m and 14s 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 2.1m 13s and forecast to arrive on Friday (Aug 14) at 6PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 9s period and expected on Monday (Aug 17) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Thu 13th Aug) | 5.5ft (1.7m) 14s |
| Best Surf | 9AM (Fri 14th Aug) | 6.5ft (2.0m) 13s |
| Most Powerful | 6PM (Fri 14th Aug) | 7ft (2.1m) 13s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on offer at Barra da Lagoa over the next couple of weeks.
It's a bit of a slow start, but we've got a proper little window of solid surf shaping up for the middle of the week. The standout is going to be Friday morning, August 14th. The ocean is waking up with a solid 7ft swell from the SSE, and the period is a juicy 13 seconds, meaning good, powerful groundswell lines. The combined energy is pumping at a strong 1397 (moderate wave energy), and to top it all off, it's glassy. Absolutely glassy. Light rain won't matter one bit when the line-up is that clean. This is the pick of the forecast, no question.
Thursday morning, August 13th, is also a fine option. You're looking at a clean 6ft swell from the same direction, with a 14-second period pushing through. The combined energy is 1241 (moderate wave energy), and with a light cross-offshore breeze, it'll be clean and well-shaped. The water temp is about average for this time of year, so no nasty surprises.
Wednesday, August 12th, is a bit of a washout with cross-shore wind and marginal conditions, so I'd wait until Thursday. Friday afternoon will still be fun with glassy conditions and 6ft waves, but the morning is the real winner.
Now, after that burst of action, it all goes quiet. From Saturday, August 15th, right through to the end of the forecast period, we're looking at a major dry spell. The swell drops right off, the wind gets messy, and the combined energy dips into the weak range. You'll see the odd tiny wave on the 22nd and 25th, but nothing worth paddling out for. Saturday morning, August 22nd, has a little 2ft SE swell with a long 15-second period, but it's barely breaking and the wind is howling. There's a bit of a pulse showing on the 27th with a 7ft ESE swell, but the wind is cross-offshore and strong, making it a messy, blown-out prospect. Honestly, for a beach break, that setup looks more interesting for the kite surfers than paddle surfers.
So, in short: get your sessions in Thursday and Friday this week. The rest of the run is a blank. It's a bummer, but it's a classic winter pattern for the area. Forecasts can change, so keep an eye on it, but for now, that's the story.
Rusty.
Short Range ForecastHeavy rain (total 29mm), heaviest during Fri morning. Very mild (max 19°C on Thu morning, min 12°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 31mm), heaviest during Fri night. Warm (max 21°C on Mon afternoon, min 17°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | ESE 8 | NNE 5 | E 8 | SSE 10 | E 8 | SSE 10 | SSE 12 | ENE 9 | SSE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 1090 | 985 | 793 | 692 | 1241 | 1106 | 0 | 1266 | 1192 | 875 | 250 | 9 | 0 | 106 | 0 | 82 | 15 | 0 | 21 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross | cross | cross-off | cross-off | cross-off | glassy | glassy | cross-on | cross | cross | cross-on | cross | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 3:56AM0.81m | 4:14PM0.67m | |||||||
Low Tide | 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 | 10:11AM0.28m | 9:31PM0.27m | |||||||
 |  |  |  | |  |  |  | |  | | |  | | |  |  |  | | |
 | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — |
 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — |
mm | 6 | 1 | — | — | — | 3 | 5 | 7 | 7 | 20 | 4 | 3 | 1 | 2 | 1 | — | — | — | — |
Temp °C | 13 | 14 | 16 | 16 | 19 | 17 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 20 | 19 | 20 | 19 | 21 | 19 |
Feels °C | 12 | 12 | 15 | 15 | 19 | 15 | 19 | 20 | 20 | 19 | 20 | 19 | 19 | 21 | 21 | 21 | 19 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 |
| kJ | 1090 | 985 | 793 | 692 | 1241 | 1106 | 1092 | 1266 | 1192 | 875 | 250 | 226 | 223 | 222 | 355 | 437 | 534 | 713 | 690 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 5 | NE 6 | NE 6 | ENE 6 | SE 7 | ESE 8 | SSE 12 | S 11 | SSE 11 | SSE 10 | S 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 |
| kJ | 11 | 5 | 5 | 5 | 17 | 27 | 16 | 15 | 128 | 173 | 418 | 302 | 153 | 106 | 75 | 82 | 35 | 36 | 21 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ENE 6 | NE 6 | NE 6 | E 15 | — | E 13 | E 13 | — | SSE 12 | — | S 9 |
| kJ | — | — | — | — | — | — | — | — | 16 | 9 | 1 | 5 | — | 12 | 14 | — | 15 | — | 2 |
Wind waves Height (m) Direction Period (s) | — | NE 7 | NNE 4 | NE 4 | — | S 3 | — | SE 7 | NE 6 | — | — | NNE 5 | — | — | — | — | — | — | NW 3 |
| kJ | — | 13 | 5 | 16 | — | 3 | — | 131 | 19 | — | — | 9 | — | — | — | — | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 4 | 4 | 5 | 0 | 17 | 10 | 0 | 0 | 3 | 3 | 3 | 3 | 3 | 21 | 3 | 5 | 43 | 4 |
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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