Surf Forecasts:
Joaquina surf forecast from 30 Aug 2026:
- Best quality surf: Monday 31 Aug, 9AM (local time) - 7.5ft (2.3m), 8s period, ESE swell with cross-onshore winds.
- Most powerful swell: Sunday 6 Sep, 9AM (local time) - 8ft (2.5m), 10s period, S swell with 1,300 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 9AM (local time) - 7.5ft (2.3m), 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 9AM. The primary swell is predicted to be 2.3m and 8s period with a secondary swell of 1.7m and 8s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Joaquina in the next 16 days are 2.5m 10s and forecast to arrive on Sunday (Sep 06) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Sunday (Sep 06) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 31st Aug) | 7.5ft (2.3m) 8s |
| Best Surf | 9AM (Mon 31st Aug) | 7.5ft (2.3m) 8s |
| Most Powerful | 9AM (Sun 6th Sep) | 8ft (2.5m) 10s |
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’s on the table for the coming weeks at Joaquina. It’s a bit of a mixed bag, so let’s break it down.
Right off the bat, we’ve got a slow start. The surf is pretty limp over the first couple of days. Sunday morning the 30th of August is offering up tiny 3ft waves from the east with a short 8-second period, and a cross-onshore breeze. The water temperature is sitting at 66°, which is about normal for the time of year. The energy is weak (122), and honestly, it’s not worth paddling out for. The only real glimmer of hope early on is Monday afternoon, the 31st of August. We get a bit of a pulse, with 5ft waves from the ESE, 8 seconds, and the wind goes glassy. That’s a window for some clean, fun waves, but it’s still a short period and the overall energy is moderate (253). Not a standout, but a chance to get wet.
As we roll into September, Tuesday morning the 1st looks promising with clean 5ft surf from the ESE under a cross-offshore breeze. The energy is picking up a bit (327), but it’s still a short period swell. Then it gets ugly. From Wednesday the 2nd right through to the weekend of the 5th and 6th, the wind is a mess. We’re looking at cross-onshore breezes and choppy conditions, with swell heights bouncing between 4ft and 6ft, but the quality is poor. The energy gets up there (420, 484), but it’s all blown out. This is more of a kite-surfing setup than a clean paddle session.
There’s a bit of a lull around the 8th and 9th of September, with tiny 1ft to 2ft waves. The energy drops to near nothing (46, 47). Don’t get your hopes up.
Now, here’s where it gets interesting. The best bet in the whole outlook is Friday morning, the 11th of September. We’ve got a 3ft swell from the SSE, but the period jumps to 10 seconds, which is a nice groundswell feel. The wind is glassy, absolute perfection. The energy is solid (272) and the conditions will be clean. The crowd profile at Joaquina is "often," so expect some company, but for that quality of a morning, it’ll be worth it. That’s your standout.
After that, the tail end of the forecast gets a bit messy again. Saturday the 12th and Sunday the 13th are back to cross-onshore winds and short period junky waves. Monday the 14th of September shows a bigger 6ft swell from the ESE with a 9-10 second period, and the energy is strong (537-569). The wind is light cross-onshore, so it’s marginal. If you’re an expert looking for some size and you don’t mind a bit of bump, it’s there, but it’s not the clean glass of the 11th.
So, to wrap it up: the start is poor, the middle is a write-off, and the real gem is the glassy morning on Friday, the 11th of September. If you can only paddle out once, make it that one.
Rusty.
Short Range ForecastHeavy rain (total 101mm), heaviest during Sun night. Warm (max 21°C on Tue afternoon, min 15°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Fri night. Warm (max 20°C on Fri morning, min 14°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 9 | SE 9 | SE 10 | SE 10 | SE 11 | SE 10 | SE 10 | E 8 | S 5 | SSE 6 | SSE 8 | SSE 8 |
Wave Graph | |||||||||||||||||||||
82 | 109 | 180 | 589 | 302 | 196 | 274 | 339 | 330 | 243 | 231 | 281 | 212 | 163 | 108 | 49 | 44 | 33 | 139 | 250 | 346 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | glassy | cross-off | cross-off | on | cross | cross | cross-on | off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 11:53AM0.67m | 00:12AM0.40m | 12:28PM0.78m | 00:12AM0.46m | |||||||
Low Tide | 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 | 9:39PM0.36m | 3:51AM0.28m | 6:22PM0.40m | |||||||
6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | |
— | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | |
mm | — | 3 | 35 | 16 | 15 | 25 | — | 3 | 4 | — | — | — | — | — | — | — | — | 5 | 13 | — | — |
Temp °C | 19 | 18 | 18 | 17 | 17 | 18 | 20 | 21 | 17 | 18 | 18 | 16 | 18 | 18 | 16 | 20 | 19 | 16 | 14 | 14 | 14 |
Feels °C | 20 | 19 | 20 | 17 | 19 | 19 | 22 | 22 | 12 | 14 | 14 | 16 | 13 | 14 | 13 | 19 | 16 | 13 | 10 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 9 | SE 9 | SE 10 | SE 10 | SE 11 | SE 10 | ENE 6 | E 8 | E 8 | E 8 | E 8 | SSE 8 |
82 | 109 | 180 | 331 | 302 | 196 | 274 | 339 | 330 | 243 | 231 | 281 | 212 | 163 | 108 | 45 | 44 | 63 | 46 | 34 | 346 | |
Swell 2 Height (m) Direction Period (s) | SSE 5 | SE 10 | S 9 | — | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 10 | ENE 10 | E 9 | E 9 | E 9 | E 9 | SE 10 | ENE 6 | SE 9 | SE 8 | SSE 13 | E 8 |
9 | 4 | 2 | — | 222 | 30 | 13 | 67 | 154 | 136 | 100 | 61 | 57 | 39 | 38 | 49 | 18 | 14 | 11 | 17 | 22 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSE 10 | SE 9 | — | — | SE 10 | — | — | — | — | — | — | — | S 8 | S 7 | E 8 | SE 10 | S 16 | SE 14 | — | — |
4 | 9 | 3 | — | — | 4 | — | — | — | — | — | — | — | 1 | 1 | 22 | 35 | 5 | 7 | — | — | |
Wind waves Height (m) Direction Period (s) | — | SSE 5 | SSE 6 | ESE 8 | — | — | — | — | S 5 | — | — | — | N 3 | NE 4 | NE 5 | — | — | S 5 | SSE 6 | SSE 8 | S 8 |
— | 22 | 59 | 589 | — | — | — | — | 78 | — | — | — | 1 | 15 | 14 | — | — | 33 | 139 | 250 | 893 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 27 | 23 | 6 | 0 | 0 | 0 | 23 | 14 | 27 | 65 | 0 | 4 | 60 | 4 | 7 | 82 | 27 | 27 | 23 | 23 |
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.











