Surf Forecasts:
Joaquina surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 9PM (local time) - 3.5ft (1.1m), 10s period, SE swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 6PM (local time) - 6ft (1.9m), 10s period, SSE swell with 688 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 6PM (local time) - 3.5ft (1.1m), 9s 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 Monday (Sep 07) at 6PM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.2m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Joaquina in the next 16 days are 1.9m 10s and forecast to arrive on Sunday (Sep 06) at 6PM. 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 Sunday (Sep 06) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 7th Sep) | 3.5ft (1.1m) 9s |
| Best Surf | 9PM (Mon 7th Sep) | 3.5ft (1.1m) 10s |
| Most Powerful | 6PM (Sun 6th Sep) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
Alright, grab a coffee and listen up. Rusty here, and I’ve been staring at the charts for your stretch of coast. It’s a bit of a mixed bag, to be honest. We’ve got a long 16-day window ahead, but the first week is going to be a real grind. The good news is that things start to look up towards the end of the second week, but we’ve got to earn it.
Right now, the pattern is pretty poor. The wind is blowing from the wrong direction for most of the first week, and the swell is inconsistent. The first real chance to get wet doesn't come until Tuesday, the 8th of September. Before that, it’s mostly cross-onshore junk with weak, short-period swell. The combined energy is low, barely breaking 100 (87 on Friday), so it’s not worth paddling out for.
Tuesday, 8th September is the first flicker of hope. Joaquina will see a tiny drop of swell, about 2ft from the SE, but the wind is set to go light offshore from the NNW and even go glassy in the afternoon. That’s the ticket. The water is sitting at 67°F, which is just about average for this time of year, so no surprises there. The waves will be small and clean, but at least your line-up won’t be a washing machine. Crowds are often a thing here, so expect some company.
We then hit a dead zone through the middle of the period. The swell picks up, but the wind is a nightmare. By Sunday, 13th September, the swell is pumping up to over 7ft from the SE, but with a strong cross-onshore wind, it’s going to be a chop-fest. The combined energy value is huge (over 1000), but it’s just too messy for a good paddle. This is one for the experts only, if anyone, as it’s over 8ft later in the day. The beach break setup will be closing out, so honestly, this might be more interesting for the kite surfers than for us.
The real standout is shaping up for Saturday, 19th September. We’ve got a 5ft to 6ft swell rolling in from the SE, but the wind is going to be a clean cross-offshore from the N. The combined energy is still moderate (234-539), but the conditions will be clean. It’s a long way out, so don’t book the time off work just yet, but it’s the one day in the entire 16-day window that has the makings of a proper session. The period is short (7 seconds), so it’ll be a bit of a bumpy, wind-driven wave, but it will be rideable and clean.
So, to sum it up: the first week is a write-off, with a tiny window on Tuesday the 8th for a glassy, small-wave session. The second week is a story of big, messy swell. Your best bet, by a long shot, is the Saturday the 19th. Keep your fingers crossed on that one.
Rusty.
Short Range ForecastHeavy rain (total 35mm), heaviest during Sat afternoon. Very mild (max 17°C on Fri afternoon, min 10°C on Sun night). Winds increasing (light winds from the S on Fri night, fresh winds from the S by Sun afternoon). | Days 5-7 Weather SummarySome drizzle, heaviest during Tue morning. Warm (max 21°C on Wed morning, min 13°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 10 | SSE 6 | SSE 9 | SSE 9 | SSE 6 | SSE 7 | SSE 9 | SSE 9 | S 9 | SSE 9 | SSE 10 | SE 10 | SSE 9 | ESE 7 | SSE 12 | SSE 12 | SSE 12 | E 8 | SSE 15 | SSE 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 51 | 37 | 58 | 84 | 45 | 143 | 528 | 415 | 625 | 221 | 122 | 96 | 58 | 84 | 52 | 93 | 90 | 81 | 93 | 74 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | on | off | off | glassy | cross-off | cross-off | cross-on | cross-on | cross-on | on | on |
High Tide | 00:12AM0.40m | 12:28PM0.78m | 00:12AM0.46m | 12:59PM0.85m | 00:02AM0.53m | 1:24PM0.88m | 00:07AM0.63m | 1:41PM0.88m | 00:28AM0.73m | 1:53PM0.86m | 00:55AM0.82m | 2:03PM0.83m | 1:25AM0.88m | |||||||
Low Tide | 9:39PM0.36m | 3:51AM0.28m | 6:22PM0.40m | 5:05AM0.18m | 6:44PM0.36m | 6:00AM0.08m | 7:10PM0.35m | 6:45AM0.00m | 7:35PM0.34m | 7:24AM-0.04m | 7:57PM0.33m | 7:58AM-0.04m | 8:16PM0.31m | |||||||
 |  |  |  |  |  |  |  |  | |  |  | | | | | | | |  | |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — |
 | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — |
mm | 2 | 10 | 9 | 13 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 5 |
Temp °C | 17 | 15 | 13 | 14 | 15 | 13 | 13 | 12 | 13 | 15 | 14 | 16 | 17 | 18 | 21 | 21 | 18 | 19 | 19 | 19 |
Feels °C | 13 | 14 | 10 | 10 | 11 | 8 | 4 | 5 | 9 | 14 | 13 | 16 | 18 | 18 | 20 | 22 | 16 | 19 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | SSE 9 | E 8 | E 8 | E 8 | SSE 9 | SSE 9 | SSE 9 | ESE 6 | E 7 | SSE 9 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 |
| kJ | 33 | 69 | 71 | 84 | 33 | 20 | 12 | 415 | 237 | 221 | 55 | 150 | 58 | 171 | 228 | 202 | 76 | 74 | 55 | 54 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SSE 6 | SSE 9 | E 8 | S 8 | E 9 | — | E 8 | E 8 | E 8 | SSE 10 | SE 10 | S 16 | ESE 7 | SSE 12 | SSE 12 | ESE 8 | SSE 12 | SSE 15 | SSE 14 |
| kJ | 51 | 30 | 58 | 68 | 37 | 7 | — | 5 | 5 | 5 | 122 | 96 | 5 | 84 | 52 | 93 | 45 | 81 | 93 | 74 |
Swell 3 Height (m) Direction Period (s) | — | SE 10 | SE 11 | SE 9 | SE 10 | — | — | — | — | — | E 8 | — | S 16 | SE 9 | SE 9 | E 16 | SSE 12 | SE 16 | SSE 9 | SSE 5 |
| kJ | — | 37 | 40 | 23 | 15 | — | — | — | — | — | 5 | — | 5 | 41 | 21 | 5 | 90 | 41 | 7 | 5 |
Wind waves Height (m) Direction Period (s) | SSE 5 | — | SSE 4 | S 9 | SSE 6 | SSE 7 | SSE 9 | S 9 | S 9 | — | E 6 | ENE 7 | ENE 8 | NE 8 | — | ENE 8 | — | S 3 | SSW 4 | — |
| kJ | 36 | — | 7 | 235 | 45 | 143 | 528 | 1080 | 625 | — | 86 | 326 | 276 | 699 | — | 403 | — | 1 | 4 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 82 | 6 | 27 | 6 | 30 | 27 | 1545 | 23 | 6 | 27 | 0 | 0 | 0 | 0 | 0 | 14 | 6 | 6 | 14 | 28 |
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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