Surf Forecasts:
Armacao surf forecast from 11 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 12PM (local time) - 2.5ft (0.7m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 9PM (local time) - 5ft (1.6m), 7s period, ENE swell with 242 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 12PM (local time) - 2.5ft (0.7m), 10s period with ENE swell.
Best Forecast Surf Conditions for Armacao this week:
The surf forecast for Armacao over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 12PM. The primary swell is predicted to be 0.7m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Armacao in the next 16 days are 1.6m 7s and forecast to arrive on Friday (Sep 18) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Sunday (Sep 13) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 15th Sep) | 2.5ft (0.7m) 10s |
| Best Surf | 12PM (Tue 15th Sep) | 2.5ft (0.7m) 10s |
| Most Powerful | 9PM (Fri 18th Sep) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Armacao over the next 16 days.
The Lowdown
Right then, let’s have a look at the forecast for Armacao. To be straight with you, this is one of those outlooks where you’ll be doing more watching than paddling. The data shows a long stretch with nothing worth chasing, so don’t get your hopes up for the next couple of weeks.
The first bit of surf that shows up is on Friday, September 11th, but it’s a write-off. We’ve got a small 4ft ENE swell with a short period of 8 seconds and moderate wave energy (150). The wind is cross-on from the NNW at 9 mph, making it choppy and messy. The water’s sitting at 63°, which is a good 4° colder than usual for this time of year – proper nippy. This is not a session you’d bother with.
After that, things go dead. From Saturday, September 12th all the way through to Sunday, September 20th, there’s no surf to recommend. That’s over a week of flat, clean conditions. The wind often goes cross-off or glassy, which would be perfect if there were any waves, but there just aren't any.
Monday, September 14th brings a bit more energy back, but it’s not good. A 5ft to 6ft ENE swell rolls in with a short 7-second period, giving us moderate wave energy (276 to 302). The wind is light and cross-on, so it’s bumpy and unappealing. The model calls it marginal at best.
A similar situation pops up on Friday, September 18th – another 5ft to 6ft ENE swell with a short period (6 to 7 seconds) and moderate energy (196 to 244). Again, the wind is cross-on, keeping things messy and poor. Nothing worth paddling out for.
From September 19th through to the 26th, it’s almost entirely flat. There are a few tiny pulses of 1ft to 2ft on the 21st, 24th, 25th and 26th, but the periods are laughably short (3 to 7 seconds), and the energy is weak (between 2 and 34). The conditions are either cross-on or glassy, but with waves that small, it’s just not surfable.
Honestly, there is no standout session here. The entire 16-day window is a bust for quality surf. There’s nothing to recommend. This kind of blank run is pretty normal for the area, but it doesn’t make it any easier. Keep your eyes peeled for the next forecast – it can’t stay this poor forever.
Rusty.
Short Range ForecastHeavy rain (total 46mm), heaviest during Fri afternoon. Warm (max 20°C on Fri afternoon, min 14°C on Sun night). Winds increasing (calm on Fri afternoon, strong winds from the S by Sat afternoon). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Mon night. Very mild (max 17°C on Tue afternoon, min 14°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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) | ENE 8 | E 8 | SSE 6 | SSE 8 | S 7 | SE 8 | SE 8 | ENE 8 | ESE 8 | SE 8 | SE 8 | E 8 | E 9 | ESE 10 | E 9 | E 9 | E 9 | SSE 9 | NE 2 | NNE 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 60 | 0 | 0 | 0 | 0 | 0 | 0 | 116 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 16 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | on |
High Tide | 1:45AM0.87m | 2:23PM0.73m | 2:18AM0.87m | 2:40PM0.72m | 2:52AM0.84m | 2:59PM0.70m | 3:27AM0.78m | 3:18PM0.68m | 4:03AM0.71m | 3:37PM0.64m | 4:44AM0.62m | 3:54PM0.60m | ||||||||
Low Tide | 8:27PM0.28m | 8:52AM0.07m | 8:36PM0.25m | 9:13AM0.16m | 8:37PM0.21m | 9:23AM0.25m | 8:42PM0.18m | 9:12AM0.33m | 8:56PM0.17m | 8:58AM0.39m | 9:16PM0.20m | 8:50AM0.45m | 9:37PM0.25m | |||||||
 |  |  |  |  | |  |  | | |  | | | |  | | | | |  | |
 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — |
 | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — |
mm | 22 | — | — | — | — | — | 1 | 19 | 4 | 2 | 8 | — | — | — | — | — | — | — | — | 4 |
Temp °C | 20 | 20 | 17 | 17 | 16 | 15 | 16 | 15 | 16 | 15 | 15 | 16 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 18 |
Feels °C | 21 | 18 | 13 | 10 | 12 | 12 | 13 | 14 | 14 | 15 | 14 | 15 | 16 | 14 | 14 | 12 | 12 | 16 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | E 8 | E 8 | E 8 | SSE 7 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | E 8 | E 9 | ESE 10 | E 9 | E 9 | E 9 | SSE 9 | SSE 7 | ESE 6 |
| kJ | 60 | 61 | 30 | 32 | 147 | 129 | 110 | 145 | 153 | 120 | 84 | 331 | 304 | 375 | 217 | 173 | 106 | 113 | 66 | 35 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | SSE 11 | SSE 10 | SE 12 | E 8 | E 8 | E 8 | ENE 8 | SSE 11 | E 7 | E 8 | SSE 8 | SSE 10 | SSE 12 | SSE 11 | S 10 | SSE 6 | E 9 | E 9 | SSE 12 |
| kJ | 26 | 23 | 10 | 5 | 32 | 31 | 33 | 21 | 49 | 43 | 63 | 40 | 42 | 59 | 68 | 94 | 40 | 103 | 79 | 123 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 6 | E 12 | — | — | S 16 | SE 14 | SSE 12 | SSE 9 | SSE 11 | SSE 10 | SE 8 | SE 8 | SSE 10 | SE 8 | SE 7 | SSE 12 | SE 8 | SE 11 | E 8 |
| kJ | 4 | 3 | 3 | — | — | 5 | 8 | 30 | 25 | 66 | 56 | 45 | 64 | 37 | 10 | 8 | 29 | 3 | 33 | 36 |
Wind waves Height (m) Direction Period (s) | N 4 | — | SSE 6 | SSE 8 | S 7 | SSW 8 | S 8 | ENE 8 | — | — | — | — | — | S 4 | SSE 6 | SSE 6 | S 6 | — | NE 2 | NNE 4 |
| kJ | 14 | — | 56 | 191 | 311 | 109 | 74 | 116 | — | — | — | — | — | 31 | 31 | 74 | 81 | — | 1 | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 4 | 1 | 42 | 68 | 17 | 17 | 17 | 17 | 42 | 2 | 1 | 3 | 17 | 9 | 9 | 68 | 1 | 1 | 41 | 56 |
Best forecast wave conditions in Florianópolis | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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Information about the Armacao Surf forecast
The above surf forecast table for Armacao provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Armacao can be found by selecting the local surf guide option on the grey menu. Our Armacao 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 (Armacao) 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 Armacao 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.
Armacao is 19 km (12 miles) from the city of 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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