Surf Forecasts:
Joaquina surf forecast from 28 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 9PM (local time) - 8ft (2.4m), 13s period, SSE swell with cross-onshore winds.
- Most powerful swell: Wednesday 2 Sep, 6AM (local time) - 10ft (3.0m), 11s period, S swell with 2,564 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 6PM (local time) - 3.5ft (1.0m), 8s period with E swell.
Best Forecast Surf Conditions for Joaquina this week:
The surf forecast for Joaquina over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 30) at 6PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.3m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Joaquina in the next 16 days are 3.0m 11s and forecast to arrive on Wednesday (Sep 02) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 13s period and expected on Tuesday (Sep 01) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 30th Aug) | 3.5ft (1.0m) 8s |
| Best Surf | 9PM (Tue 1st Sep) | 8ft (2.4m) 13s |
| Most Powerful | 6AM (Wed 2nd Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s cooking at Joaquina.
Right off the bat, I’m not gonna sugarcoat it – this is a tough forecast. We’re looking at a blank stretch of a few days with nothing worth paddling for. The first week is mostly a bust, with tiny, messy surf. There’s a little spike on Monday, August 31st, with some waist-to-chest high swell around 4ft from the east, and a north-northwest wind keeping it reasonably clean. The wave energy is moderate, but it’s not going to get your heart racing.
Then things go flat and bumpy again for a while. We see a massive jump in energy on Wednesday, September 2nd, with a 10ft swell from the south (very strong energy). But that’s way too much for this sandbar. That’s strictly for experts, and honestly, it’s probably going to be a mess – more of a kite-surfing day than a paddle-surfing one.
The real standout, the one bright spot in this whole outlook, is the morning of Monday, September 7th. We’ve got a solid 6ft swell from the south-southeast, with a very long 14-second period – that’s proper groundswell. The energy is strong. That long period will shape up some nice lines, but keep in mind, at a sandbar like Joaquina, a super long period swell can sometimes be a bit straight. The wind is forecast to be a light offshore from the north-west, making conditions glassy and clean. This is excellent for experienced surfers. For the average joe, that 6ft is getting a bit full; it might be a handful if you’re not ready.
After that, the wind swings onshore from the south, and the rest of the second week turns into a choppy mess. The last days show another big pulse on Saturday, September 12th, with a 10ft swell from the east-southeast, but just like the first one, it’s too big to be any fun. The water is about 65°, which is pretty average for this time of year.
So, in short: circle Monday, September 7th in the morning. That’s your window. For the rest of it, you’re better off checking the wind forecast elsewhere or taking a rest.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun afternoon. Warm (max 22°C on Fri morning, min 17°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 34mm), heaviest during Mon morning. Warm (max 20°C on Mon morning, min 13°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | SE 12 | SE 11 | SE 11 | SSE 10 | SSE 10 | E 8 | ESE 8 | ESE 8 | ESE 8 | E 9 | ESE 7 | ESE 7 | ESE 7 | S 9 | SSE 12 | S 11 | SSE 11 | SE 10 | SSE 10 | SSE 10 | SSE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 68 | 31 | 18 | 10 | 10 | 107 | 159 | 130 | 171 | 230 | 78 | 114 | 62 | 240 | 1381 | 2041 | 713 | 424 | 333 | 308 | 126 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-on | on | cross-on | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-on | on | glassy | cross-on | cross-on | cross-off |
High Tide | 2:34PM0.87m | 2:12AM0.92m | 2:58PM0.85m | 2:44AM0.92m | 3:22PM0.81m | 3:19AM0.90m | 3:49PM0.75m | 3:58AM0.84m | 4:16PM0.68m | 4:43AM0.76m | 4:43PM0.60m | 5:40AM0.67m | 5:10PM0.52m | 00:11AM0.36m | |||||||
Low Tide | 8:45PM0.25m | 9:04AM-0.01m | 9:11PM0.25m | 9:38AM0.05m | 9:36PM0.26m | 10:15AM0.15m | 9:54PM0.27m | 10:59AM0.27m | 9:48PM0.29m | 12:22PM0.39m | 9:33PM0.30m | 9:27AM0.53m | 2:33PM0.47m | 9:35PM0.32m | |||||||
 | |  | | | |  | |  |  | |  | |  |  | | | |  | | | |
 | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — |
 | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — |
mm | — | — | — | — | — | — | 2 | 2 | 4 | 18 | 15 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 19 | 20 | 19 | 19 | 20 | 19 | 20 | 20 | 20 | 19 | 20 | 17 | 15 | 16 | 14 | 15 | 16 | 16 |
Feels °C | 21 | 21 | 22 | 19 | 21 | 18 | 20 | 22 | 21 | 23 | 21 | 19 | 14 | 15 | 13 | 13 | 13 | 12 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | SE 11 | E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | E 9 | ESE 7 | ESE 7 | ESE 7 | S 9 | SSE 12 | SSE 11 | SSE 11 | SE 10 | SSE 10 | SSE 10 | SSE 9 |
| kJ | 155 | 31 | 157 | 157 | 130 | 107 | 159 | 130 | 171 | 230 | 78 | 114 | 62 | 240 | 1381 | 894 | 713 | 424 | 333 | 308 | 126 |
Swell 2 Height (m) Direction Period (s) | SE 12 | — | SE 11 | SSE 10 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SSE 6 | ENE 9 | ENE 9 | ENE 9 | ESE 8 | E 10 | E 10 | E 10 | ENE 9 | ENE 9 | ENE 9 | SE 10 |
| kJ | 68 | — | 18 | 10 | 10 | 4 | 4 | 4 | 3 | 30 | 110 | 61 | 61 | 58 | 73 | 51 | 50 | 29 | 16 | 16 | 36 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SSE 10 | SSE 10 | SE 9 | — | — | E 8 | NNW 4 | ENE 9 | — | — | — | — | — | — | E 8 |
| kJ | — | — | — | — | — | — | 10 | 9 | 3 | — | — | 50 | 4 | 61 | — | — | — | — | — | — | 13 |
Wind waves Height (m) Direction Period (s) | NNW 3 | ENE 8 | — | S 4 | S 3 | S 4 | S 5 | — | — | — | — | — | SSW 3 | S 9 | S 12 | S 11 | — | — | — | NE 2 | NNE 3 |
| kJ | 1 | 212 | — | 1 | 2 | 12 | 14 | — | — | — | — | — | 1 | 836 | 3624 | 2041 | — | — | — | 1 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 61 | 6 | 6 | 23 | 27 | 23 | 11 | 0 | 0 | 0 | 18 | 6 | 146 | 12 | 23 | 23 | 0 | 6 | 18 | 0 |
Best forecast wave conditions in Florianópolis | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Joaquina Surf forecast
The above surf forecast table for Joaquina provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Joaquina can be found by selecting the local surf guide option on the grey menu. Our Joaquina 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 (Joaquina) 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 Joaquina 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.
Joaquina 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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