Surf Forecasts:
Armacao surf forecast from 9 Aug 2026:
- Most powerful swell: Monday 10 Aug, 6PM (local time) - 1.5ft (0.5m), 9s period, ENE swell with 44 kJ wave energy.
Best Forecast Surf Conditions for Armacao this week:
The most powerful waves expected at Armacao in the next 16 days are 0.5m 9s and forecast to arrive on Monday (Aug 10) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 12s period and expected on Monday (Aug 10) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6PM (Mon 10th Aug) | 1.5ft (0.5m) 9s |
Table - best surf conditions forecast for Armacao over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s run through it.
First glance at the whole 16-day run, and I’m telling you, it’s a total dud for Armacao. From Sunday the 9th of August all the way through to Monday the 24th of August, it’s nothing but "poor surf conditions" on the menu. That’s a long, quiet stretch.
The swell energy is almost non-existent, with readings mostly in the single or low double digits (0 to 30). Surf heights are barely a ripple – we’re looking at 0.3m or 0.5m from the ENE or NE, coupled with short periods under 8 seconds. Not a single wave worth paddling for.
The only flicker of a highlight is on Tuesday the 11th of August, when the wind goes glassy out of the WNW at 5 km/h in the afternoon. But without any swell, it’s just a pretty, flat ocean. Later on, say Sunday the 23rd, you get a fresh offshore wind from the SSW at 30 km/h, but the swell is still a miserable 0.4m from the NW with an energy reading of just 2. It’s a wasted offshore.
Water temp is 19°, pretty standard for this time of year. The problem is purely a lack of any real swell source. A blank spell like this is pretty normal around here when the forecast goes quiet. Don’t get down about it; the charts can always change, but for now, keep the board in the bag.
- Rusty
Short Range ForecastLight rain (total 6mm), mostly falling on Sun afternoon. Very mild (max 14°C on Sun morning, min 11°C on Sun night). Winds decreasing (fresh winds from the S on Sun morning, calm by Tue morning). | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Wed morning. Warm (max 20°C on Thu morning, min 12°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
AM | 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) | SSE 8 | ENE 7 | SSE 12 | ENE 8 | SSE 13 | SSE 12 | ENE 8 | SSE 12 | SSE 12 | SSE 12 | NE 4 | NE 4 | ENE 5 | SSE 14 | SSE 13 | ENE 6 | ENE 6 | NE 6 | N 3 | ESE 9 | ESE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 30 | 0 | 11 | 0 | 0 | 13 | 0 | 0 | 0 | 5 | 9 | 15 | 0 | 0 | 8 | 8 | 10 | 2 | 0 | 0 |
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 | off | cross-off | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross | cross | cross-off | off | off | cross-off | cross-off | glassy |
High Tide | 1:37PM0.85m | 00:24AM0.54m | 2:08PM0.87m | 00:37AM0.61m | 2:31PM0.85m | 1:01AM0.70m | 2:44PM0.81m | 1:29AM0.77m | 2:54PM0.76m | 2:01AM0.83m | 3:07PM0.72m | 2:34AM0.85m | 3:24PM0.69m | ||||||||
Low Tide | 7:28PM0.31m | 6:54AM0.02m | 8:02PM0.32m | 7:38AM-0.04m | 8:32PM0.35m | 8:18AM-0.07m | 8:56PM0.37m | 8:54AM-0.05m | 9:16PM0.38m | 9:27AM-0.00m | 9:29PM0.37m | 9:55AM0.08m | 9:24PM0.34m | ||||||||
 |  |  |  | |  | | | |  | | | | |  | | | | | |  | |
 | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — | — | 6:45 | — | — |
 | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — |
mm | — | 1 | 3 | — | — | — | — | 1 | 1 | 8 | 1 | — | — | — | 6 | 2 | 1 | — | — | — | — |
Temp °C | 14 | 14 | 11 | 13 | 14 | 13 | 14 | 13 | 12 | 13 | 16 | 16 | 20 | 18 | 18 | 18 | 18 | 19 | 18 | 20 | 19 |
Feels °C | 8 | 9 | 7 | 9 | 9 | 9 | 13 | 12 | 11 | 11 | 15 | 15 | 21 | 18 | 18 | 19 | 19 | 20 | 19 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 12 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SE 12 | SE 12 | SSE 15 | SSE 14 | SSE 13 | SE 8 | SE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
| kJ | 157 | 122 | 560 | 493 | 341 | 688 | 569 | 525 | 573 | 488 | 414 | 319 | 711 | 644 | 640 | 187 | 173 | 404 | 318 | 295 | 288 |
Swell 2 Height (m) Direction Period (s) | E 7 | ENE 7 | ENE 7 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | E 8 | E 8 | E 7 | ENE 7 | E 7 | ENE 5 | E 6 | ENE 6 | SSE 13 | SE 14 | SSE 12 | SSE 12 | SSE 11 | SSE 11 |
| kJ | 27 | 18 | 18 | 11 | 26 | 22 | 13 | 5 | 4 | 4 | 5 | 1 | 15 | 16 | 12 | 309 | 532 | 309 | 174 | 157 | 66 |
Swell 3 Height (m) Direction Period (s) | — | ENE 7 | E 13 | — | — | — | — | — | — | — | ENE 7 | — | — | — | — | ENE 6 | ENE 6 | NE 6 | E 16 | E 16 | E 16 |
| kJ | — | 30 | 3 | — | — | — | — | — | — | — | 5 | — | — | — | — | 8 | 8 | 10 | 5 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSE 9 | — | S 12 | SSE 6 | — | — | — | — | — | NE 4 | NE 4 | — | — | — | — | — | — | N 3 | — | — |
| kJ | 256 | 308 | — | 1266 | 60 | — | — | — | — | — | 4 | 9 | — | — | — | — | — | — | 2 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 36 | 9 | 17 | 36 | 6 | 9 | 2 | 2 | 2 | 2 | 2 | 2 | 18 | 2 | 9 | 9 | 3 | 9 | 17 | 2 |
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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