Surf Forecasts:
Joaquina surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 13 Aug, 3AM (local time) - 3ft (0.9m), 15s period, SE swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 9AM (local time) - 4.5ft (1.4m), 14s period, SSE swell with 785 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 3AM (local time) - 3ft (0.9m), 15s period with SE 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 Thursday (Aug 13) at 3AM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 0.9m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Joaquina in the next 16 days are 1.4m 14s and forecast to arrive on Thursday (Aug 13) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Sunday (Aug 16) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 13th Aug) | 3ft (0.9m) 15s |
| Best Surf | 3AM (Thu 13th Aug) | 3ft (0.9m) 15s |
| Most Powerful | 9AM (Thu 13th Aug) | 4.5ft (1.4m) 14s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
Alright, Rusty here, looking over the local forecast for Joaquina. It’s a mixed bag over the next couple of weeks, but there are a few sessions worth paddling out for if you pick your moments.
We start off with a bit of a wait. Thursday the 13th isn’t the best call – we’ve got a solid 5ft swell from the SSE with a 14-second period, so there's decent energy (785) in the water, but that cross-onshore breeze messes it up, making conditions choppy and borderline. Thursday afternoon gets even worse. So, hold tight.
Friday the 14th is where we see some light. The morning slot is looking sweet – glassy conditions with a light rain, and a clean 4ft swell from the SE at a nice 13-second interval. That’s the kind of start to the day that gets you out of bed. The wave energy is solid (703), and with the offshore wind and glassy surface, this is your standout window for clean, lined-up waves. Get out there early.
Friday afternoon the wind shifts a bit cross-onshore, so the magic fades.
Saturday the 15th holds some promise, with a 5ft swell from the east, but the period drops to a short 8 seconds. The wind is cross-offshore, so it’ll be clean, but that shorter period means less push and a bit more chop on the face. Still, it’s rideable. The energy is moderate (415 and 339 for the morning and afternoon).
Sunday the 16th and Monday the 17th are quiet – the swell drops right off to almost nothing on Monday, with puny waves and terrible energy readings (down to 25). The whole week from the 18th through to the 22nd is a write-off. We get some SSE energy, but the wind is howling onshore – strong cross-onshore, choppy, messy. Not worth a look.
Now, look ahead to Sunday the 23rd of August. This is a real blip on the radar. The swell picks up to a solid 7ft from the S, with a period around 9-10 seconds. The combined energy jumps up to over 1000 – that's strong, heavy water. The catch? It’s mostly cross-onshore or onshore wind, so it’ll be raw and bumpy. That size (7ft) is getting into expert territory – probably too big for beginners, and with onshore wind, it’ll be a challenge even for the skilled crew. If you’re an experienced local, it could be a wild session, but don’t expect a pretty wave.
Monday the 24th looks much more appealing. We’re back to glassy conditions in the morning with a 4ft SE swell and 9-second period. That’s a clean, fun size for a lot of people. The energy is moderate (220) but the glassy surface makes it a joy to surf. This is your second standout: Monday morning, clean and empty-feeling.
After that, the end of the month sees a few small pulses. Thursday the 27th afternoon has a surprise glass-off with a 4ft SSE swell and an 8-second period – that could be a sneaky good, clean session for the late shift. Energy is moderate (224). Friday the 28th morning is small but clean with cross-offshore wind.
Overall: The best bets are Friday morning the 14th for a clean, glassy session with a proper long-period groundswell (SE, 4ft, 13s), and Monday morning the 24th for another glassy morning with fun, clean waves. The bigger swell on the 23rd is for experts only and will be messy with the wind. The rest of the window has long stretches of flat, poor conditions. Keep your eye on the forecasts – things can change, but this run feels like a waiting game.
Rusty
Short Range ForecastHeavy rain (total 49mm), heaviest during Fri night. Very mild (max 18°C on Thu morning, min 15°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun morning. Warm (max 21°C on Mon morning, min 15°C on Tue afternoon). Winds increasing (light winds from the ENE on Sun afternoon, strong winds from the S by Tue afternoon). | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 12 | SSE 14 | SSE 14 | SSE 13 | SE 13 | SSE 14 | SSE 13 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 12 | SSE 12 | SSE 11 | SSE 5 | SSE 7 | SSE 8 |
Wave Graph | |||||||||||||||||||
243 | 785 | 635 | 587 | 400 | 607 | 335 | 233 | 223 | 172 | 190 | 230 | 319 | 15 | 13 | 11 | 49 | 238 | 168 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | glassy | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on |
High Tide | 1:42AM0.81m | 3:01PM0.81m | 2:13AM0.86m | 3:17PM0.77m | 2:46AM0.88m | 3:35PM0.73m | 3:20AM0.86m | 3:54PM0.70m | 3:56AM0.81m | 4:14PM0.67m | 4:34AM0.74m | 4:34PM0.64m | |||||||
Low Tide | 9:03PM0.38m | 8:59AM-0.05m | 9:21PM0.39m | 9:30AM0.01m | 9:29PM0.38m | 9:56AM0.09m | 9:20PM0.35m | 10:12AM0.19m | 9:14PM0.30m | 10:11AM0.28m | 9:31PM0.27m | 10:02AM0.36m | 9:58PM0.27m | ||||||
— | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | |
— | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | |
mm | 1 | — | 1 | 6 | 9 | 8 | 17 | 4 | 3 | — | 1 | 1 | 1 | — | — | — | — | — | 1 |
Temp °C | 15 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 19 | 19 | 21 | 21 | 19 | 16 | 15 | 15 |
Feels °C | 13 | 19 | 17 | 19 | 20 | 20 | 19 | 19 | 18 | 20 | 20 | 20 | 19 | 20 | 20 | 20 | 13 | 8 | 14 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 14 | SSE 14 | SSE 13 | SE 7 | SSE 14 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | SSE 8 |
243 | 785 | 635 | 587 | 140 | 607 | 267 | 233 | 223 | 172 | 190 | 230 | 319 | 286 | 372 | 320 | 194 | 130 | 168 | |
Swell 2 Height (m) Direction Period (s) | SE 15 | ENE 4 | ENE 5 | ENE 6 | SE 13 | ESE 7 | SSE 13 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SE 10 | SSE 10 | SSE 12 | SSE 11 | S 10 | — | E 9 |
223 | 4 | 5 | 6 | 400 | 117 | 335 | 177 | 111 | 68 | 44 | 40 | 25 | 10 | 13 | 11 | 8 | — | 106 | |
Swell 3 Height (m) Direction Period (s) | E 7 | — | E 8 | — | — | — | SE 8 | E 16 | E 15 | E 14 | E 14 | E 14 | — | SSE 12 | — | — | — | — | — |
1 | — | 1 | — | — | — | 129 | 5 | 5 | 4 | 4 | 4 | — | 15 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 4 | — | — | — | ESE 7 | ESE 7 | — | NNE 5 | ENE 8 | NNE 4 | NE 7 | — | ENE 8 | ENE 9 | ENE 9 | — | SSE 5 | SSE 7 | S 8 |
6 | — | — | — | 163 | 247 | — | 50 | 385 | 26 | 82 | — | 699 | 699 | 749 | — | 49 | 238 | 355 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 18 | 6 | 23 | 6 | 0 | 7 | 0 | 0 | 0 | 0 | 4 | 4 | 12 | 4 | 60 | 4 | 27 | 65 | 6 |
Best forecast wave conditions in Florianópolis | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











