
Surf Forecasts:
Joaquina surf forecast from 12 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 6AM (local time) - 5ft (1.5m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 9PM (local time) - 5ft (1.5m), 9s period, E swell with 397 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 6AM (local time) - 5ft (1.5m), 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 Tuesday (Sep 15) at 6AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 0.5m and 8s. 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 1.5m 9s and forecast to arrive on Tuesday (Sep 15) 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 1.6m 7s period and expected on Friday (Sep 18) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 15th Sep) | 5ft (1.5m) 8s |
| Best Surf | 6AM (Tue 15th Sep) | 5ft (1.5m) 8s |
| Most Powerful | 9PM (Tue 15th Sep) | 5ft (1.5m) 9s |
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 cookin' for Joaquina over the next couple of weeks. Gotta be honest with you, it's a bit of a slow start, so don't be in a rush to grab your board just yet.
We're looking at a real quiet spell kicking things off. The first solid week is pretty much a write-off for anything decent. Friday the 11th through to Sunday the 14th is just poor surf, with onshore winds messing everything up. You'll see small, weak swells with combined energy barely cracking 30 to 228. Not worth the paddle.
Monday the 14th into Tuesday the 15th we get a bump in size, with the swell hitting 5ft from the East on Tuesday morning. The wave energy jumps up to a moderate 416, but the wind is cross-shore. It's a marginal call at best, and the conditions are just ordinary.
The first real glimmer of hope comes on Thursday the 17th of September. Thursday morning we've got a 3ft swell from the SSE, but more importantly, it's glassy – dead calm wind. The wave energy is sitting at a moderate 219, but that glassy surface will make the most of it. It's a small, fun morning session. You'll want to be at Joaquina itself, a sandbar setup that can hold a good wave. The water's a bit colder than usual for this time of year, sitting at 64°F.
From there, we get a few days of surfable but ordinary waves. Friday the 18th and the weekend of the 19th and 20th see some cross-off winds keeping things clean, but the swells are mixed up and nothing to write home about. The energy stays in that moderate bracket, between 139 and 209.
Now, if you've got some patience, the standout window is shaping up to be Saturday the 26th of September. We're looking at a solid 5ft groundswell from the SSE with a long period of 12 seconds, packing some serious grunt with a wave energy of 697. The wind is forecast to be a light cross-off, which means clean, peeling lines. This is a proper groundswell, so expect good shape and longer lulls between sets – makes paddling out a breeze. This is the one to circle on the calendar, but remember, it's a long way out, so keep an eye on those updates.
Earlier that same week, Friday the 25th afternoon shows a 7ft swell from the SSE with a huge energy reading of 613. That's sizeable, but it's onshore wind, so it'll be a lumpy, challenging mess. Definitely for experts only, and even then, it's a question mark.
Overall, this forecast has a slow first week, but the second week builds to a real shot at some quality. Hang tight.
Rusty.
Short Range ForecastHeavy rain (total 53mm), heaviest during Fri afternoon. Warm (max 20°C on Fri afternoon, min 14°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the S by Sat afternoon). | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Mon night. Very mild (max 18°C on Tue afternoon, min 14°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 12 | SSE 11 | SSE 6 | SSE 8 | S 7 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | E 8 | E 9 | ESE 10 | E 9 | E 9 | E 9 | SSE 9 | E 9 | SSE 12 |
Wave Graph | ||||||||||||||||||||
26 | 23 | 56 | 191 | 311 | 129 | 110 | 145 | 153 | 120 | 84 | 331 | 304 | 375 | 217 | 173 | 106 | 113 | 79 | 123 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross | cross | on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-off |
High Tide | 1:56AM0.91m | 2:33PM0.78m | 2:29AM0.91m | 2:51PM0.75m | 3:03AM0.87m | 3:10PM0.73m | 3:37AM0.81m | 3:28PM0.70m | 4:13AM0.74m | 3:46PM0.67m | 4:55AM0.65m | 4:01PM0.62m | ||||||||
Low Tide | 8:30PM0.29m | 8:54AM0.07m | 8:36PM0.25m | 9:12AM0.16m | 8:38PM0.21m | 9:19AM0.25m | 8:47PM0.18m | 9:16AM0.33m | 9:06PM0.18m | 9:14AM0.40m | 9:29PM0.20m | 9:12AM0.46m | 9:54PM0.26m | |||||||
— | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | |
mm | 26 | — | — | 2 | — | — | 3 | 19 | 3 | 2 | 11 | — | — | — | — | — | — | — | — | 4 |
Temp °C | 20 | 20 | 18 | 17 | 16 | 15 | 15 | 16 | 16 | 15 | 15 | 17 | 18 | 16 | 17 | 17 | 16 | 17 | 17 | 18 |
Feels °C | 20 | 18 | 14 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 14 | 17 | 18 | 14 | 14 | 14 | 13 | 16 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | E 8 | E 8 | E 8 | SSE 7 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | E 8 | E 9 | ESE 10 | E 9 | E 9 | E 9 | SSE 9 | SSE 7 | ESE 6 |
60 | 61 | 30 | 32 | 147 | 129 | 110 | 145 | 153 | 120 | 84 | 331 | 304 | 375 | 217 | 173 | 106 | 113 | 66 | 35 | |
Swell 2 Height (m) Direction Period (s) | SSE 12 | SSE 11 | SSE 10 | SE 12 | E 8 | E 8 | E 8 | ENE 8 | SSE 11 | E 7 | E 8 | SSE 8 | SSE 10 | SSE 12 | SSE 11 | S 10 | SSE 6 | E 9 | E 9 | SSE 12 |
26 | 23 | 10 | 5 | 32 | 31 | 33 | 21 | 49 | 43 | 63 | 40 | 42 | 59 | 68 | 94 | 40 | 103 | 79 | 123 | |
Swell 3 Height (m) Direction Period (s) | S 7 | S 6 | E 12 | — | — | S 16 | SE 14 | SSE 12 | SSE 9 | SSE 11 | SSE 10 | SE 8 | SE 8 | SSE 10 | SE 8 | SE 7 | SSE 12 | SE 8 | SE 11 | E 8 |
4 | 3 | 3 | — | — | 5 | 8 | 30 | 25 | 66 | 56 | 45 | 64 | 37 | 10 | 8 | 29 | 3 | 33 | 36 | |
Wind waves Height (m) Direction Period (s) | N 4 | — | SSE 6 | SSE 8 | S 7 | SSW 8 | S 8 | ENE 8 | — | — | — | — | — | S 4 | SSE 6 | SSE 6 | S 6 | — | NE 2 | NNE 4 |
14 | — | 56 | 191 | 311 | 109 | 74 | 116 | — | — | — | — | — | 31 | 31 | 74 | 81 | — | 1 | 16 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 19 | 3 | 30 | 82 | 27 | 27 | 27 | 30 | 28 | 11 | 6 | 3 | 23 | 6 | 6 | 82 | 6 | 0 | 27 | 71 |
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.










