Surf Forecasts:
Barra da Lagoa surf forecast from 10 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 (1.8m), 14s period, SSE swell with 1,224 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 1.8m 14s and forecast to arrive on Thursday (Aug 13) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 13s period and expected on Monday (Aug 10) at 6PM.
| 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 (1.8m) 14s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright, listen up. Rusty here, and I've been staring at the charts for Barra da Lagoa. Gotta be straight with you – it's a pretty bleak run for the next couple of weeks. We're looking at a long, frustrating gap right off the bat.
Monday the 10th and Tuesday the 11th are dead. Zero on the energy scale. Don't even bother waxing up. The wind might go glassy on Tuesday afternoon, but there's nothing to ride.
We finally see a pulse of swell arrive on Wednesday the 12th. It's a 6ft (12-second period) SSE swell, but that combined energy is only moderate at 887, and the wind is trash – cross-shore all day. The report is calling it "marginal" and I agree. It's a frustrating tease.
Thursday the 13th is the one day that has any real hope. The morning still has that cross-shore wind messing things up, but by Thursday afternoon the wind swings to a light ESE, going glassy. We're looking at a clean, 6ft SSE swell with a solid 14-second period (that's groundswell energy, giving the waves shape) and a combined energy reading of 1122. For this stretch, that's the standout. It'll be a bit punchy, big enough for a good session.
After that, it's grim. Friday the 14th turns ugly with onshore wind, Saturday the 15th drops to tiny 2ft leftovers, and then it's a whole week of tiny, wind-affected junk. Waist-high at best, if you're lucky. There's another attempt on Sunday the 23rd with a 6ft SSE swell, but the wind is already onshore, so that's out. Then a big NW wind event dries the whole joint out for the end of the month.
So here's the call: If you're desperate, you paddle out Barra da Lagoa this Thursday afternoon (13th of August). That's the one clean window. For the rest, you're better off taking a nap.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Wed morning. Very mild (max 16°C on Wed afternoon, min 11°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Sat morning. Warm (max 20°C on Fri morning, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 11 | S 12 | S 12 | S 12 | S 12 | S 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | S 13 | SSE 13 | SSE 14 | SSE 12 | SE 8 | SSE 11 | SSE 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 985 | 887 | 780 | 669 | 1143 | 1122 | 0 | 670 | 934 | 619 | 41 | 380 | 302 |
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 | glassy | glassy | cross | cross | cross | cross | glassy | cross-off | cross-on | cross-on | glassy | off | cross | glassy |
High Tide | 00:26AM0.58m | 2:02PM0.91m | 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 | |||||||
Low Tide | 7:01AM0.03m | 8:09PM0.33m | 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 | |||||||
 |  | |  | |  | | | |  |  | |  | | | |  | |  | |
 | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — |
 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — |
mm | 3 | — | — | — | — | 2 | 3 | 5 | 1 | — | — | — | 1 | — | — | 2 | 5 | 4 | 6 |
Temp °C | 12 | 13 | 14 | 13 | 13 | 12 | 12 | 13 | 16 | 16 | 19 | 19 | 18 | 20 | 20 | 20 | 20 | 20 | 18 |
Feels °C | 8 | 8 | 9 | 9 | 11 | 11 | 12 | 12 | 15 | 15 | 18 | 21 | 19 | 21 | 20 | 21 | 22 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | S 11 | ENE 8 | ENE 9 | S 12 | S 12 | S 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | S 13 | SSE 13 | SSE 14 | SSE 12 | S 12 | SSE 11 | SSE 11 |
| kJ | 1104 | 33 | 44 | 1415 | 1213 | 940 | 985 | 887 | 780 | 669 | 1143 | 1122 | 764 | 670 | 934 | 619 | 397 | 380 | 302 |
Swell 2 Height (m) Direction Period (s) | ENE 7 | E 13 | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | NE 5 | NE 6 | NE 6 | ENE 6 | ENE 6 | SE 8 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 43 | 3 | — | 38 | 25 | 12 | 11 | 5 | 5 | 5 | 31 | 38 | 28 | 24 | 25 | 37 | 56 | 54 | 57 |
Swell 3 Height (m) Direction Period (s) | E 13 | — | — | — | — | — | — | — | — | E 8 | — | — | — | — | — | — | SE 8 | E 16 | SE 8 |
| kJ | 4 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 41 | 5 | 48 |
Wind waves Height (m) Direction Period (s) | — | S 12 | S 12 | — | — | — | — | — | NE 7 | NNE 4 | — | — | — | — | — | NE 7 | — | — | N 3 |
| kJ | — | 1160 | 1363 | — | — | — | — | — | 8 | 11 | — | — | — | — | — | 43 | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 17 | 17 | 13 | 13 | 4 | 0 | 4 | 4 | 4 | 4 | 0 | 4 | 4 | 25 | 0 | 4 | 16 | 0 |
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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