Surf Forecasts:
Joaquina surf forecast from 12 Aug 2026:
- Best quality surf: Saturday 15 Aug, 12AM (local time) - 4ft (1.2m), 13s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 14 Aug, 12AM (local time) - 5ft (1.5m), 13s period, SSE swell with 760 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 9AM (local time) - 4.5ft (1.3m), 12s period with SSE 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 Wednesday (Aug 12) at 9AM. The primary swell is predicted to be 1.3m and 12s period. 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 13s and forecast to arrive on Friday (Aug 14) at 12AM. 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 Monday (Aug 17) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Wed 12th Aug) | 4.5ft (1.3m) 12s |
| Best Surf | 12AM (Sat 15th Aug) | 4ft (1.2m) 13s |
| Most Powerful | 12AM (Fri 14th Aug) | 5ft (1.5m) 13s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s talk about what Joaquina’s offering in feet and miles.
Water temp is a standard 65°F – nothing out of the ordinary.
Wednesday morning brings a clean 4ft swell from the SSE, period at 12 seconds, with moderate energy (480). Wind is a light cross-off from the NNW, so the sandbar should be tidy. Crowds are often around, so expect company.
Wednesday afternoon holds the same 4ft SSE swell, energy at 490, still cross-off. Clean.
Thursday dips a bit – same size but wind turns cross-on from the SSW, creating small ripples and marginal conditions.
Friday morning is nothing special, but Friday afternoon is a gem: wind goes glassy, swell at 4ft SSE, 13-second period, energy at 793. That’s the standout early window – clean, good shape, calm winds.
Saturday morning drops to 3ft SSE, still clean but smaller. Saturday afternoon switches to a 4ft easterly but period drops to 8 seconds – less power, energy down to 312. Just okay.
Sunday through Tuesday are poor – small swell, messy winds, Monday only showing 0.7ft. A write-off.
From Wednesday 19th through Saturday 22nd, it’s weak and mostly onshore. A glassy morning on Thursday 20th with 3ft easterly but low energy (171) – nothing exciting.
Sunday 23rd brings a massive 8ft south swell with 11-second period and massive energy (2416) – but it’s too big for this break. Same for Sunday afternoon at 8ft, and Wednesday 26th morning again at 8ft. That’s expert, unruly stuff – likely more kite than paddle.
The end of the outlook improves: Monday 24th morning has a clean 4ft SSE swell, cross-off wind, energy at 413. Wednesday 26th afternoon: 4ft SSE, glassy, energy at 470 – that’s a quality session. Thursday 27th morning: glassy but small at 3ft SSE.
Best bet? Friday 14th afternoon – glassy, 4ft, 13-second SSE groundswell with good energy. Second pick: Wednesday 26th afternoon – same glassy, clean setup at 4ft.
Keep your eyes on the glassy windows.
Rusty.
Short Range ForecastHeavy rain (total 44mm), heaviest during Fri night. Very mild (max 18°C on Thu morning, min 13°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Sat morning. Warm (max 21°C on Mon morning, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 12 | SSE 10 | SSE 10 | E 9 | S 9 | S 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 480 | 488 | 243 | 691 | 635 | 760 | 357 | 590 | 430 | 222 | 196 | 193 | 173 | 181 | 217 | 15 | 11 | 10 | 219 | 15 | 33 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-on | cross-on | cross-on | glassy |
High Tide | 2:44PM0.86m | 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 | ||||||||
 |  |  | | |  | |  |  | | |  | | |  | | | | |  | | |
 | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — |
 | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — |
mm | 1 | — | — | — | 2 | 8 | 4 | 6 | 23 | 5 | 3 | 1 | 1 | 2 | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 16 | 18 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 19 | 19 | 21 | 21 | 19 | 19 | 18 | 18 |
Feels °C | 13 | 15 | 14 | 18 | 16 | 20 | 19 | 20 | 20 | 20 | 18 | 19 | 19 | 20 | 19 | 22 | 21 | 21 | 17 | 17 | 19 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | SSE 13 | SE 7 | SSE 13 | ESE 7 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | 480 | 488 | 243 | 691 | 635 | 760 | 140 | 590 | 208 | 204 | 196 | 193 | 173 | 181 | 217 | 273 | 297 | 269 | 219 | 153 | 160 |
Swell 2 Height (m) Direction Period (s) | ENE 7 | E 7 | SE 15 | ENE 5 | ENE 5 | ENE 6 | SSE 13 | ESE 7 | SSE 13 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | S 9 | S 7 |
| kJ | 5 | 1 | 223 | 8 | 9 | 6 | 357 | 131 | 430 | 222 | 111 | 68 | 40 | 42 | 27 | 10 | 11 | 10 | 9 | 15 | 33 |
Swell 3 Height (m) Direction Period (s) | — | — | E 7 | — | — | — | NE 6 | SE 7 | — | E 16 | E 15 | E 13 | ESE 13 | ESE 13 | — | SSE 12 | — | — | — | — | — |
| kJ | — | — | 1 | — | — | — | 17 | 57 | — | 5 | 5 | 3 | 17 | 17 | — | 15 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 7 | ENE 3 | NE 4 | — | S 3 | — | ESE 7 | NE 6 | E 7 | — | NNE 4 | E 8 | NNE 4 | — | ENE 8 | ENE 8 | ENE 9 | — | SSW 4 | S 4 | — |
| kJ | 8 | 1 | 9 | — | 4 | — | 228 | 15 | 427 | — | 29 | 323 | 36 | — | 511 | 587 | 629 | — | 14 | 10 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 18 | 6 | 6 | 6 | 7 | 0 | 0 | 0 | 0 | 0 | 4 | 18 | 0 | 4 | 4 | 6 | 27 | 23 | 3 |
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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