Surf Forecasts:
Joaquina surf forecast from 21 Aug 2026:
- Best quality surf: Sunday 23 Aug, 9PM (local time) - 8ft (2.4m), 12s period, S swell with cross-onshore winds.
- Most powerful swell: Sunday 23 Aug, 9PM (local time) - 8ft (2.4m), 12s period, S swell with 1,712 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 9AM (local time) - 2.5ft (0.7m), 8s period with SSE 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 Friday (Aug 21) at 9AM. The primary swell is predicted to be 0.7m and 8s period. 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 2.4m 12s and forecast to arrive on Sunday (Aug 23) 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 3.0m 10s period and expected on Friday (Aug 21) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Fri 21st Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 9PM (Sun 23rd Aug) | 8ft (2.4m) 12s |
| Most Powerful | 9PM (Sun 23rd Aug) | 8ft (2.4m) 12s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
G'day, Rusty here, lookin' at the 16-day picture for Joaquina. It's a bit of a mixed bag, but we've got a couple of windows that'll get the blood pumping. The water's sitting at 67°F, which is about what you'd expect for this time of year, so no surprises there.
The next few days are a bit of a write-off, to be honest. Friday morning's got some tiny 2ft SSE swell, but it's cross-off and the energy's weak (60). Friday arvo gets a bit of size but it's blown out with onshore wind. Saturday is a no-go with onshore winds and increasing swell making for poor conditions.
Now, Sunday the 23rd is where we start to see a glimmer. The morning is looking glassy with a 4ft SSE groundswell packing a 12-second period and moderate energy (379). That's going to be clean and lined up, a real treat for a Sunday session. The morning is the golden window here, as the arvo turns onshore.
Monday the 24th through Wednesday the 26th is shaping up to be the real standout. We've got a solid pulse of SSE swell. Monday morning sees 6ft with a 13-second period and strong energy (1457), and it keeps building into the arvo with 6ft and a very long 15-second period, energy hitting 1467. The wind is the only question mark, with a cross-on breeze, but the quality of the swell is undeniable. This is proper groundswell, so it might be a bit straighter at the beach break, but there'll be plenty of power. Tuesday cleans right up with a cross-off northerly, 4ft and a 13-second period, with good energy (606). Wednesday morning is glassy again with a 5ft SE swell, 14-second period, and strong energy (817). That's a beautiful window for the experienced crew. The 6ft on Monday is getting into the "too big for beginners" territory, and the 6ft on Tuesday is on the edge, so keep that in mind.
After that, the swell backs off through the end of August and into the first week of September. There's a long gap of poor surf, with only tiny, weak dribble until we get a glimmer of hope on Friday the 4th of September. That morning looks promising with a 3ft SSE swell, a 10-second period, and moderate energy (255) under a clean offshore wind. Saturday the 5th of September morning is even better, with glassy conditions and a 4ft SSE swell, 11-second period, and moderate energy (386). That's worth marking on the calendar as a potential, but it's a long way out, so keep an eye on it.
So, for the best on offer, it's a toss-up between the glassy Sunday morning of the 23rd and the entire run from Monday the 24th through Wednesday the 26th. The Wednesday morning with glassy conditions and 5ft, 14-second SE swell is the pick of the bunch for me. The energy is solid (817) and it'll be a ripper. Tuesday the 25th is a very close second with cross-off winds and a consistent 4ft swell. The Monday (24th) is the biggest, but the wind is a bit average. Still, if you can handle the size, it’ll be a fun, powerful wave.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Fri morning, min 12°C on Sat afternoon). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed morning. Very mild (max 19°C on Wed night, min 12°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 | SSE 8 | SSE 9 | SSE 10 | SSE 9 | SSE 10 | SSE 12 | SSE 12 | SSE 14 | SSE 13 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SE 16 | SE 14 | SE 13 | SE 14 | SE 13 | SE 13 | SE 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 58 | 164 | 506 | 399 | 336 | 274 | 379 | 551 | 1247 | 936 | 1467 | 850 | 606 | 489 | 357 | 799 | 569 | 667 | 398 | 290 | 156 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross-on | cross-on | on | glassy | glassy | on | cross | cross-on | on | glassy | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 12:32PM0.61m | 12:33PM0.68m | 11:20PM0.51m | 12:47PM0.75m | 11:56PM0.60m | 1:07PM0.80m | 00:24AM0.69m | 1:29PM0.84m | 00:49AM0.77m | 1:51PM0.87m | 1:16AM0.83m | 2:12PM0.88m | 1:43AM0.89m | ||||||||
Low Tide | 4:22AM0.29m | 6:28PM0.44m | 5:27AM0.21m | 6:42PM0.38m | 6:12AM0.13m | 7:03PM0.34m | 6:50AM0.06m | 7:27PM0.30m | 7:24AM0.00m | 7:52PM0.27m | 7:57AM-0.03m | 8:18PM0.26m | |||||||||
 | |  |  | | | | | | | |  |  | | |  | |  | | | | |
 | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — |
 | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | — | — | — |
Temp °C | 19 | 17 | 14 | 13 | 13 | 12 | 14 | 14 | 13 | 14 | 14 | 14 | 16 | 16 | 16 | 17 | 18 | 19 | 20 | 21 | 19 |
Feels °C | 17 | 13 | 10 | 10 | 9 | 10 | 12 | 10 | 8 | 12 | 11 | 13 | 14 | 14 | 15 | 18 | 18 | 19 | 18 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | SSE 8 | E 7 | SSE 9 | SSE 10 | ENE 9 | SSE 10 | SSE 12 | SSE 12 | SSE 14 | SSE 13 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SE 14 | SE 13 | SE 14 | SE 13 | SE 13 | ENE 7 |
| kJ | 58 | 37 | 506 | 399 | 25 | 274 | 379 | 551 | 1247 | 936 | 1467 | 850 | 606 | 489 | 294 | 799 | 569 | 667 | 398 | 290 | 68 |
Swell 2 Height (m) Direction Period (s) | E 7 | NNW 4 | E 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | E 7 | SE 16 | — | — | — | SE 17 | SE 16 | — | ENE 5 | ENE 6 | ENE 7 | E 7 | SE 13 |
| kJ | 35 | 1 | 30 | 23 | 43 | 14 | 6 | 6 | 4 | 521 | — | — | — | 44 | 357 | — | 20 | 55 | 82 | 61 | 156 |
Swell 3 Height (m) Direction Period (s) | E 11 | — | — | — | — | — | — | — | — | ENE 7 | — | — | — | — | — | — | SE 17 | — | — | — | — |
| kJ | 2 | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | 135 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSE 8 | S 10 | S 10 | SSE 9 | — | — | S 3 | — | — | — | — | — | — | NNE 3 | NE 4 | NE 5 | NE 6 | NE 7 | NNE 4 | NNW 3 |
| kJ | — | 164 | 1325 | 978 | 336 | — | — | 5 | — | — | — | — | — | — | 7 | 18 | 73 | 162 | 226 | 10 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 28 | 23 | 6 | 23 | 0 | 0 | 31 | 6 | 6 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 61 | 4 |
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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