Surf Forecasts:
Joaquina surf forecast from 31 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 12AM (local time) - 4.5ft (1.4m), 8s period, SE swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 12PM (local time) - 5.5ft (1.7m), 13s period, S swell with 1,021 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 6PM (local time) - 3.5ft (1.0m), 8s period with ESE 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 Monday (Aug 31) at 6PM. The primary swell is predicted to be 1.0m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Joaquina in the next 16 days are 1.7m 13s and forecast to arrive on Monday (Sep 07) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 9s period and expected on Wednesday (Sep 02) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 31st Aug) | 3.5ft (1.0m) 8s |
| Best Surf | 12AM (Tue 1st Sep) | 4.5ft (1.4m) 8s |
| Most Powerful | 12PM (Mon 7th Sep) | 5.5ft (1.7m) 13s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what Joaquina’s got cookin’ for the next couple of weeks.
We’re kickin’ things off on Monday the 31st of August. The surf is small, just 4ft, but it’s clean. Glassy conditions in the morning, with a light rain and zero wind. It’s a little ordinary, but you can get wet. The combined swell energy is moderate at 121, and the water is sitting at 67°, which is bang on average for this time of year. The swell is coming from the southeast, which is exactly what this sandbar likes to see. Afternoon stays glassy, but the rain picks up to heavy.
Tuesday the 1st of September sees a bump in size to 4ft, but the wind shifts to a light cross-shore from the SSW, and the period stretches to 8 seconds. The energy jumps to 236, but conditions are marginal. By afternoon, the wind cranks onshore from the south at 19 mph, and the swell pushes to 5ft. It’s a lumpy, windy mess. Not worth paddling out.
Wednesday the 2nd brings more of the same – 4ft, cross-shore wind, and a 9-second period. The energy is moderate at 264, but it’s still a marginal call. The afternoon goes onshore from the SE, and it’s a write-off.
Thursday the 3rd offers a little glimmer. The swell drops to 4ft, but the wind goes cross-offshore from the NNW at 12 mph, and the period hits 11 seconds. This is groundswell territory. The energy is moderate at 269, and the conditions are clean. It’s not big, but for a Thursday morning, it’s the best we’ve seen. The afternoon has a similar feel but with a smaller 3ft swell.
Friday the 4th and Saturday the 5th are a write-off. The swell drops to tiny 2ft and 2ft, and the wind is cross-onshore and choppy. Energy is weak, under 50. Don’t even bother.
We go through a long stretch of poor conditions from Sunday the 6th through to Wednesday the 9th of September. The swell climbs back up to 5ft and 6ft, and the energy peaks massively at 1325 on the Monday afternoon, but it’s all cross-onshore wind. The setup at Joaquina is a beach-and-reef sandbar, and with that much wind and swell, this is looking more like a kite surfer’s playground than a paddle surfer’s dream.
Thursday the 10th of September is still messy with onshore winds, and the swell is 5ft to 5ft. Nothing to write home about.
Now, here’s the standout. Friday the 11th of September morning. The wind goes glassy, dead calm from the SW. The swell is a clean 4ft, coming from the ESE at a 10-second period. Combined energy is a solid 311. This is the pick of the entire forecast. The water is still average temp, and the conditions are clean, clean, clean. The crowd factor at Joaquina is “often,” so expect a few locals out, but for a Friday morning, this is the session to chase.
Saturday the 12th of September morning is also glassy, with a 4ft swell from the east. It’s a solid option, but the energy is a bit lower at 266. The afternoon goes cross-offshore, which is still clean, but the wind picks up to 12 mph.
After that, the surf drops off again. Sunday the 13th and Monday the 14th are small and choppy. Tuesday the 15th of September has a tiny 1ft swell with a very long 14-second period, but there’s just not enough size to make it happen. The energy is weak at 81.
So, the bottom line: the best surf on offer is the Friday the 11th of September morning session at Joaquina. It’s not huge, but it’s clean, glassy, and the swell direction is right. The Saturday the 12th morning is a close second. The rest of the window is a mix of wind-blown junk or tiny dribble. Stay patient, and keep an eye on those forecasts.
Rusty.
Short Range ForecastHeavy rain (total 68mm), heaviest during Mon night. Warm (max 20°C on Tue morning, min 14°C on Wed night). Winds increasing (calm on Mon morning, fresh winds from the S by Tue afternoon). | Days 4-6 Weather SummaryHeavy rain (total 45mm), heaviest during Sat morning. Very mild (max 19°C on Fri morning, min 15°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 6 | ESE 7 | SE 8 | ESE 8 | SE 8 | ESE 8 | ESE 9 | ESE 9 | SE 10 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | S 5 | SSE 6 | SSE 5 | E 8 | SSE 6 | SSE 6 | S 11 |
Wave Graph | |||||||||||||||||||||
97 | 127 | 229 | 220 | 338 | 315 | 264 | 288 | 310 | 268 | 169 | 119 | 54 | 27 | 24 | 24 | 31 | 49 | 69 | 57 | 387 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross | cross-on | cross | cross | on | off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:49PM0.75m | 3:58AM0.84m | 4:16PM0.68m | 4:43AM0.76m | 4:43PM0.60m | 5:40AM0.67m | 5:10PM0.52m | 00:11AM0.36m | 11:53AM0.67m | 00:12AM0.40m | 12:28PM0.78m | 00:12AM0.46m | 12:59PM0.85m | 00:02AM0.53m | |||||||
Low Tide | 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 | 9:39PM0.36m | 3:51AM0.28m | 6:22PM0.40m | 5:05AM0.18m | 6:44PM0.36m | |||||||
6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | |
— | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | |
mm | 6 | 27 | 33 | — | 2 | — | — | — | — | — | — | — | — | — | 6 | 27 | 11 | 1 | — | — | — |
Temp °C | 18 | 18 | 18 | 20 | 17 | 17 | 18 | 18 | 16 | 18 | 18 | 17 | 19 | 18 | 16 | 15 | 16 | 16 | 15 | 15 | 14 |
Feels °C | 20 | 20 | 20 | 18 | 13 | 13 | 16 | 16 | 15 | 14 | 14 | 15 | 16 | 15 | 13 | 13 | 13 | 13 | 11 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | SE 6 | ESE 7 | ESE 8 | ESE 8 | SE 8 | ESE 8 | ESE 9 | ESE 9 | SE 10 | SE 11 | SE 11 | SE 11 | ENE 6 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 9 | SSE 5 |
97 | 127 | 166 | 220 | 338 | 315 | 264 | 288 | 310 | 268 | 169 | 119 | 29 | 58 | 86 | 88 | 68 | 49 | 32 | 42 | 21 | |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 10 | ENE 9 | E 9 | E 9 | E 9 | ENE 9 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 9 | SSE 8 | SE 9 | E 8 | SSE 11 |
55 | 61 | 22 | 13 | 43 | 103 | 71 | 68 | 60 | 40 | 39 | 25 | 54 | 27 | 16 | 4 | 8 | 38 | 3 | 32 | 91 | |
Swell 3 Height (m) Direction Period (s) | ESE 8 | SSE 6 | — | SE 10 | — | — | — | — | — | S 8 | — | S 10 | E 8 | S 9 | S 9 | S 15 | SE 14 | SSE 13 | — | E 8 | E 8 |
24 | 19 | — | 16 | — | — | — | — | — | 1 | — | 2 | 31 | 2 | 2 | 4 | 8 | 17 | — | 22 | 30 | |
Wind waves Height (m) Direction Period (s) | — | — | SE 8 | — | S 5 | — | — | — | — | N 3 | NE 4 | NE 5 | — | S 3 | S 5 | SSE 6 | SSE 5 | S 5 | SSE 6 | SSE 6 | S 11 |
— | — | 229 | — | 126 | — | — | — | — | 2 | 29 | 20 | — | 5 | 24 | 24 | 31 | 17 | 69 | 57 | 387 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 6 | 82 | 6 | 6 | 27 | 0 | 4 | 60 | 4 | 7 | 27 | 6 | 6 | 27 | 27 | 31 | 82 | 27 |
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.











