Surf Forecasts:
Barra da Lagoa surf forecast from 2 Sep 2026:
- Best quality surf: Friday 4 Sep, 3AM (local time) - 3.5ft (1.0m), 11s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 9PM (local time) - 6.5ft (2.0m), 11s period, SE swell with 918 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 3AM (local time) - 3.5ft (1.0m), 11s 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 Friday (Sep 04) at 3AM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.9m and 6s. 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 2.0m 11s and forecast to arrive on Wednesday (Sep 02) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Monday (Sep 07) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 4th Sep) | 3.5ft (1.0m) 11s |
| Best Surf | 3AM (Fri 4th Sep) | 3.5ft (1.0m) 11s |
| Most Powerful | 9PM (Wed 2nd Sep) | 6.5ft (2.0m) 11s |
Table - best surf conditions forecast for Barra da Lagoa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – the next couple of weeks at Barra da Lagoa are looking pretty grim. We’ve got a long stretch of flat, wind-affected junk ahead, so don’t be holding your breath for anything worth paddling out for.
The first real chance of anything even surfable doesn’t show up until Tuesday morning, the 8th of September. That’s a solid week of nothing. On that Tuesday, we’ve got a 5ft SSE swell with a period of 10 seconds rolling in. The combined wave energy is moderate (454). The wind is light out of the west, which is cross-offshore, and the rating says “expect good surf conditions.” That’s the standout, but it’s a short-lived window. The water temp is sitting around 66°, which is pretty much bang on average for this time of year. For a beginner-friendly spot like this, that 5ft might be a bit much for the real newbies, but it’s a solid, clean day for everyone else.
Before that, from the 2nd through the 7th, it’s a lot of poor conditions. Thursday the 3rd has some 5ft SE swell, but it’s coming with strong cross-onshore winds that will chop it up. The energy is moderate (602), but the wind is a killer. The 4th and 5th are small and clean but tiny – we’re talking 2ft and less. Not worth the wetsuit.
After Tuesday the 8th, it drops off a cliff again. Wednesday the 9th is a tiny 3ft SSE swell, and the wind is already turning onshore. From the 10th onward, it’s mostly flat, with just a few tiny, weak pulses that don’t have any quality. The wind is either ripping or glassy with no swell. There’s a long-period (13-18 seconds) groundswell trying to push through around the 16th and 17th, but it’s only 1.0ft to 1ft. That’s nothing. The energy is weak (12-31). That’s a long wait for a sad little ripple.
So, to sum it up: the only real shot you have is Tuesday morning, the 8th of September. Get it while it’s clean. After that, we’re looking at a blank run for the rest of the 16-day window. For a spot that’s *fairly consistent*, this is a rough patch. Forecasts can change, but right now, it’s a waiting game.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Sat morning. Very mild (max 19°C on Thu morning, min 13°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sat afternoon. Very mild (max 16°C on Tue morning, min 11°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSE 10 | S 5 | S 9 | SSE 10 | S 8 | S 10 | SSE 10 | SSE 10 | SSE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 936 | 850 | 574 | 475 | 228 | 112 | 65 | 65 | 37 | 27 | 16 | 18 | 0 | 0 | 112 | 0 | 0 | 454 | 419 | 177 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross |
High Tide | 4:43PM0.60m | 5:40AM0.67m | 5:10PM0.52m | 00:11AM0.36m | 11:53AM0.67m | 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 | ||||||
Low Tide | 9:33PM0.30m | 9:27AM0.53m | 2:33PM0.47m | 9:35PM0.32m | 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 | |||||||
 |  | | |  |  |  |  |  | |  | | |  | | | | | | | |
 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — |
 | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — |
mm | — | — | — | — | — | — | 3 | 7 | 10 | 3 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 19 | 19 | 17 | 17 | 16 | 14 | 14 | 13 | 14 | 15 | 15 | 12 | 13 | 14 | 13 | 16 | 16 | 16 |
Feels °C | 15 | 15 | 16 | 16 | 16 | 14 | 13 | 11 | 11 | 9 | 10 | 11 | 10 | 6 | 9 | 9 | 9 | 13 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 11 | SE 11 | SE 11 | SE 11 | ENE 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 8 | ENE 8 | E 8 | SSE 10 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 9 |
| kJ | 936 | 850 | 574 | 475 | 228 | 67 | 116 | 190 | 151 | 125 | 90 | 65 | 48 | 30 | 112 | 184 | 510 | 454 | 419 | 177 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 8 | ENE 8 | NE 5 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ENE 8 | S 11 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ESE 7 |
| kJ | 96 | 70 | 57 | 41 | 47 | 112 | 65 | 65 | 37 | 27 | 16 | 63 | 37 | 31 | 21 | 21 | 20 | 19 | 19 | 82 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 11 | ENE 8 | — | S 9 | S 11 | — | S 16 | S 14 | SSE 10 | E 9 | — | — | — | — | — | — | ENE 7 |
| kJ | — | — | — | 3 | 40 | — | 2 | 3 | — | 5 | 16 | 18 | 6 | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | — | — | N 4 | NNE 5 | NNW 3 | S 5 | S 6 | S 6 | S 9 | S 8 | S 9 | S 5 | S 5 | S 9 | S 8 | S 8 | — | — | — | N 3 |
| kJ | — | — | 28 | 54 | 4 | 51 | 123 | 84 | 332 | 279 | 257 | 23 | 87 | 660 | 499 | 213 | — | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 17 | 3 | 3 | 67 | 3 | 21 | 21 | 13 | 21 | 21 | 21 | 13 | 89 | 13 | 0 | 21 | 13 | 0 | 5 | 3 |
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.
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