Surf Forecasts:
Ponta Do Rapa surf forecast from 16 Aug 2026:
- Best quality surf: Friday 21 Aug, 6PM (local time) - 7ft (2.2m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 9PM (local time) - 8ft (2.4m), 9s period, S swell with 896 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 9PM (local time) - 4.5ft (1.4m), 9s period with ENE swell.
Best Forecast Surf Conditions for Ponta Do Rapa this week:
The surf forecast for Ponta Do Rapa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 9PM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.1m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ponta Do Rapa in the next 16 days are 2.4m 9s and forecast to arrive on Friday (Aug 21) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Wednesday (Aug 19) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 18th Aug) | 4.5ft (1.4m) 9s |
| Best Surf | 6PM (Fri 21st Aug) | 7ft (2.2m) 8s |
| Most Powerful | 9PM (Fri 21st Aug) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Ponta Do Rapa over the next 16 days.
The Lowdown
Alright, grab your board – Rusty here. We’re lookin’ at a real slow burn for the next 16 days at Ponta Do Rapa, with flashes of goodness if you're patient and pick your moments. The early week's pretty much a write-off, but there's a solid window building for the second week that could see some proper waves.
Right now, the ocean’s confused and messy. For the first few days, we've got a weak, short-period ENE swell bumpin' in, but the wind’s mainly cross or cross-on, leaving the surface choppy. The combined energy sits in a moderate range (432) but man, it just ain't clean. The water's sittin' at about 65°F, which is pretty normal for this time of year, nothing weird to report there.
That first real sign of life shows up on Friday, August 21st. The wind swings offshore from the ESE in the afternoon, cleaning things right up. That little ENE swell won’t set the world on fire at 4ft, but the combined energy (358) and clean faces will make for a fun, quiet session. It’s a rare break, so you’ll likely have it to yourself or just a few mates.
Now, Saturday, August 22nd is where my heart starts pumpin’. A new S swell moves in, 5-5ft, and the period jumps up to 10-11 seconds – proper groundswell energy. Combined energy’s up in the moderate range (541), and you’ve got offshore SE winds in the afternoon for glassy, groomed lines. This right here is the standout of the whole forecast. Ponta Do Rapa is a reef break, so that longer period is gonna wrap in and unload. It can be a bit cranky for beginners though, so know your limits.
The south swell hangs around, building into the next week. Wednesday, August 24th sees a jump to 8ft with a 12-second period, and the combined energy is a solid 2121 (strong). That’s expert territory – heavy, powerful, and beautiful. The wind stays cross-offshore, so the waves will be clean and lined up, but it’s gonna be a serious paddle and a serious drop for the experienced crew.
After that, it slowly drops back to the 3-6ft range through the end of August, with light winds generally keeping things clean. It’s not the biggest finish, but the consistency of the south swell means there’ll be waves every day. Just be aware the first few days of the forecast are dead, a total drought. But once that S-Swell kicks in from the 22nd, it’s worth the wait.
Stay sharp and read the tides – that reef can get shallow.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Tue afternoon, min 17°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu night, min 14°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | S 9 | S 10 | S 11 | S 12 |
Wave Graph | ||||||||||||||||||||
308 | 280 | 336 | 400 | 339 | 270 | 302 | 249 | 149 | 119 | 102 | 87 | 66 | 97 | 123 | 182 | 766 | 461 | 476 | 528 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-off | cross-off | cross | cross-on | cross | on | on | off | cross-off | cross-off | off | cross-off |
High Tide | 4:03PM0.74m | 4:05AM0.85m | 4:24PM0.71m | 4:44AM0.77m | 4:44PM0.67m | 5:28AM0.68m | 5:03PM0.63m | 6:32AM0.59m | 2:03PM0.57m | 1:03AM0.36m | 12:41PM0.62m | 12:33PM0.70m | 11:14PM0.54m | |||||||
Low Tide | 9:14PM0.30m | 10:03AM0.28m | 9:35PM0.27m | 10:04AM0.36m | 10:05PM0.28m | 10:10AM0.44m | 10:41PM0.31m | 10:04AM0.52m | 2:44PM0.56m | 11:49PM0.36m | 4:30AM0.31m | 6:31PM0.45m | ||||||||
— | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | |
5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 19 | 19 | 19 | 19 | 18 | 22 | 23 | 21 | 20 | 20 | 19 | 20 | 20 | 22 | 21 | 19 | 17 | 14 | 14 | 14 |
Feels °C | 19 | 19 | 18 | 18 | 17 | 22 | 23 | 23 | 20 | 19 | 20 | 19 | 19 | 20 | 20 | 16 | 15 | 12 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | SSE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 9 | S 10 | S 11 | S 12 |
308 | 280 | 336 | 19 | 339 | 270 | 302 | 249 | 149 | 119 | 102 | 87 | 66 | 97 | 123 | 176 | 108 | 461 | 476 | 528 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | S 10 | S 10 | S 9 | S 9 | S 9 | S 7 | S 7 | S 9 | S 8 | S 8 | NW 4 | — | ENE 8 | ENE 9 | ENE 8 |
110 | 80 | 33 | 33 | 8 | 8 | 2 | 2 | 2 | 1 | 16 | 32 | 59 | 12 | 11 | 1 | — | 82 | 65 | 45 | |
Swell 3 Height (m) Direction Period (s) | E 13 | E 13 | — | — | — | SE 8 | SE 8 | E 14 | SE 12 | SE 13 | S 3 | S 10 | SE 12 | SSE 6 | SE 6 | — | — | — | — | — |
14 | 13 | — | — | — | 3 | 3 | 4 | 6 | 7 | 2 | 31 | 6 | 3 | 1 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | NE 8 | ENE 8 | NNW 4 | N 4 | — | — | S 4 | S 4 | — | NNE 2 | NNE 4 | N 4 | WNW 3 | S 8 | S 9 | — | — | NE 3 |
— | — | 188 | 400 | 5 | 6 | — | — | 2 | 6 | — | 1 | 8 | 6 | 4 | 182 | 766 | — | — | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 45 | 22 | 22 | 36 | 22 | 22 | 42 | 2 | 0 | 97 | 1 | 12 | 88 | 12 | 12 | 0 | 1 | 0 | 0 | 0 |
Best forecast wave conditions in Florianópolis | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Ponta Do Rapa Surf forecast
The above surf forecast table for Ponta Do Rapa provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ponta Do Rapa can be found by selecting the local surf guide option on the grey menu. Our Ponta Do Rapa 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 (Ponta Do Rapa) 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 Ponta Do Rapa 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.
Ponta Do Rapa is 24 km (15 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.










