Surf Forecasts:
Armacao surf forecast from 30 Aug 2026:
- Best quality surf: Monday 31 Aug, 12PM (local time) - 4.5ft (1.3m), 9s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 12PM (local time) - 4.5ft (1.3m), 9s period, ENE swell with 257 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 12PM (local time) - 4.5ft (1.3m), 9s 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 Monday (Aug 31) at 12PM. The primary swell is predicted to be 1.3m and 9s 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 1.3m 9s and forecast to arrive on Monday (Aug 31) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Sunday (Sep 06) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 31st Aug) | 4.5ft (1.3m) 9s |
| Best Surf | 12PM (Mon 31st Aug) | 4.5ft (1.3m) 9s |
| Most Powerful | 12PM (Mon 31st Aug) | 4.5ft (1.3m) 9s |
Table - best surf conditions forecast for Armacao over the next 16 days.
The Lowdown
Right, mate, Rusty here. Let’s have a look at what’s comin’ our way.
To be honest, this stretch of sixteen days is a real mixed bag and mostly a flat spell. We’ve got a big gap of nothing-surfable from the start – Sunday the 30th of August right through to Monday the 31st in the afternoon, so that’s a day and a half of nothin’ but small wind ripples. Then after that, it’s a real patchy run with very few windows where it’s worth paddlin’ out. The water temp at Armação is sittin’ at 66°F, which is bang on average for this time of year, so no surprises there.
The only real standout in the whole outlook is Monday afternoon, the 31st of August. We get a little bump of swell from the ENE at 4ft, with a period of 8 seconds – that’s a short-period windswell, so it’ll be a bit crumbly, but the wind goes glassy for that afternoon. Absolutely dead calm, mate. That’s a major positive. The combined energy of all swells is moderate at 202. It’s not big, but it’s the cleanest we’ll see. Armação is a fairly exposed spot, so when the wind drops, it can tidy up nicely. Expect a few surfers out – it’s “sometimes” crowded, so you might not have it to yourself.
After that, it’s a long dry spell. Tuesday the 1st of September morning has a tiny 1ft with a cross-shore breeze, and the afternoon gets a bit more size at 2ft from the NE, but it’s all weak and sloppy. The rest of the first week is a write-off – strong winds, onshores, or just no swell. The combined energy drops to barely a whisper (13 to 65), so it’s not worth paddling into.
Come the second week, we see a bit more size but with poor conditions. On Tuesday the 8th of September, we get a 6ft NE swell (period 7 seconds) with a cross-onshore wind, and the combined energy is moderate (313). That’s a bit too big for beginners and the wind will chop it up. It’s a beach-and-reef setup, but with that onshore breeze, it’s more interesting for kite surfing than a proper paddle session. The energy is there, but the quality is not.
The last few days are just dead flat or wind-affected. Honestly, the one and only call here is that Monday afternoon glass-off on the 31st of August. It’s not a classic, but it’s the only clean wave in the whole sixteen days. If you’re desperate, go for a paddle then.
Rusty.
Short Range ForecastHeavy rain (total 107mm), heaviest during Sun night. Warm (max 21°C on Tue afternoon, min 15°C on Tue night). Winds increasing (calm on Mon afternoon, fresh winds from the SSW by Tue night). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Fri night. Very mild (max 19°C on Thu morning, min 13°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the S by Fri afternoon). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | E 8 | ESE 8 | ESE 8 | ESE 8 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | SE 9 | ENE 10 | SE 10 | N 3 | NE 4 | NE 5 | ENE 6 | ENE 6 | E 8 | SSE 6 | SSE 8 | S 8 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 0 | 0 | 222 | 30 | 13 | 67 | 154 | 0 | 100 | 0 | 1 | 15 | 14 | 45 | 18 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | glassy | off | glassy | cross | off | off | cross-off | cross | cross-on | on | cross-on | cross-off | cross-off | cross-off | off | cross-off | cross-off |
High Tide | 3:13PM0.76m | 3:09AM0.86m | 3:38PM0.71m | 3:47AM0.81m | 4:04PM0.64m | 4:31AM0.73m | 4:31PM0.57m | 5:26AM0.64m | 4:56PM0.50m | 11:55PM0.35m | 7:09AM0.55m | 00:08AM0.39m | 12:26PM0.76m | 00:17AM0.44m | |||||||
Low Tide | 9:38AM0.05m | 9:38PM0.25m | 10:17AM0.14m | 10:01PM0.27m | 11:07AM0.26m | 9:37PM0.29m | 12:29PM0.38m | 9:07PM0.29m | 8:55AM0.52m | 2:25PM0.45m | 9:13PM0.30m | 7:58AM0.55m | 9:22PM0.33m | 3:42AM0.27m | 9:01PM0.38m | ||||||
6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | |
— | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | |
mm | — | 2 | 40 | 15 | 16 | 26 | — | 3 | 5 | — | — | — | — | — | — | — | — | 8 | 12 | — | — |
Temp °C | 18 | 18 | 18 | 17 | 17 | 18 | 20 | 21 | 16 | 18 | 17 | 16 | 19 | 19 | 16 | 19 | 17 | 16 | 14 | 14 | 14 |
Feels °C | 18 | 19 | 19 | 17 | 19 | 18 | 21 | 21 | 11 | 13 | 12 | 16 | 14 | 15 | 14 | 18 | 13 | 13 | 11 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 9 | SE 9 | SE 10 | SE 10 | SE 11 | SE 10 | ENE 6 | E 8 | E 8 | E 8 | E 8 | SSE 8 |
82 | 109 | 180 | 331 | 302 | 196 | 274 | 339 | 330 | 243 | 231 | 281 | 212 | 163 | 108 | 45 | 44 | 63 | 46 | 34 | 346 | |
Swell 2 Height (m) Direction Period (s) | SSE 5 | SE 10 | S 9 | — | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 10 | ENE 10 | E 9 | E 9 | E 9 | E 9 | SE 10 | ENE 6 | SE 9 | SE 8 | SSE 13 | E 8 |
9 | 4 | 2 | — | 222 | 30 | 13 | 67 | 154 | 136 | 100 | 61 | 57 | 39 | 38 | 49 | 18 | 14 | 11 | 17 | 22 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSE 10 | SE 9 | — | — | SE 10 | — | — | — | — | — | — | — | S 8 | S 7 | E 8 | SE 10 | S 16 | SE 14 | — | — |
4 | 9 | 3 | — | — | 4 | — | — | — | — | — | — | — | 1 | 1 | 22 | 35 | 5 | 7 | — | — | |
Wind waves Height (m) Direction Period (s) | — | SSE 5 | SSE 6 | ESE 8 | — | — | — | — | S 5 | — | — | — | N 3 | NE 4 | NE 5 | — | — | S 5 | SSE 6 | SSE 8 | S 8 |
— | 22 | 59 | 589 | — | — | — | — | 78 | — | — | — | 1 | 15 | 14 | — | — | 33 | 139 | 250 | 893 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 41 | 38 | 9 | 0 | 2 | 2 | 17 | 1 | 17 | 51 | 2 | 19 | 46 | 3 | 1 | 68 | 41 | 17 | 17 | 17 |
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.











