Surf Forecasts:
Joaquina surf forecast from 20 Aug 2026:
- Best quality surf: Monday 24 Aug, 12PM (local time) - 6ft (1.9m), 16s period, SSE swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 9AM (local time) - 6.5ft (2.0m), 16s period, SSE swell with 1,856 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 6AM (local time) - 2.5ft (0.8m), 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 Thursday (Aug 20) at 6AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.3m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Joaquina in the next 16 days are 2.0m 16s and forecast to arrive on Monday (Aug 24) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Saturday (Aug 22) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Thu 20th Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 12PM (Mon 24th Aug) | 6ft (1.9m) 16s |
| Most Powerful | 9AM (Mon 24th Aug) | 6.5ft (2.0m) 16s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
Imperial
Alright, let’s break it down in feet and miles per hour.
First few days? Honestly, forget it. Thursday the 20th through Saturday the 22nd, the surf is tiny and the wind is all over the place. It’s just cruddy out there. You’re not missing a thing.
Sunday the 23rd morning shows a little pulse – a 4ft SSE swell with a 12-second period, but the wind is light cross-onshore. The energy is getting there (379), but it’s marginal. Not worth a special trip.
Now, Monday the 24th morning is where we get some real juice. A solid 7ft SSE groundswell with a very long 16-second period. That’s a lot of power, with strong energy (1856). The wind is light cross-on, which is a bummer, but the size and period are undeniable. This is for experienced surfers only – over 5ft, it’s not for the casual crowd.
The real sweet spot is Tuesday the 25th. Morning brings a 5ft SSE swell (13 seconds) with a light offshore breeze from the NNW. The wind is clean, the waves are lined up, and the energy is solid (669). This is your session. The water temp is about average for the time of year. The afternoon holds up, too, with a bit more breeze but still cross-off. Crowds are a given at Joaquina, so get there early.
Wednesday the 26th morning is a glassy dream for the loggers. A tiny 3ft swell from the SE with a 16-second period, but the wind is dead calm – glassy. That’s a clean, slow morning. The energy is still moderate (617), so those long period lines will have some push.
After that, it drops off. Thursday the 27th and Friday the 28th have small, clean waves but no real power. Everything after that into September is blown out with onshore winds. So, mark your calendar for Tuesday the 25th – that’s the one.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu night, min 13°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Tue afternoon, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | S 7 | E 8 | E 7 | S 8 | S 7 | SSE 8 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 12 | SSE 13 | SSE 14 | SSE 16 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 4 | 71 | 53 | 5 | 34 | 154 | 495 | 336 | 287 | 269 | 379 | 569 | 1370 | 1856 | 1567 | 1042 | 669 | 572 | 392 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross-off | cross-off | cross-off | on | cross-on | cross-on | cross-on | glassy | cross-on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | off |
High Tide | 6:21AM0.56m | 1:10PM0.55m | 12:32PM0.61m | 12:33PM0.68m | 11:20PM0.51m | 12:47PM0.75m | 11:56PM0.60m | 1:07PM0.80m | 00:24AM0.69m | 1:29PM0.84m | 00:49AM0.77m | ||||||||
Low Tide | 10:32PM0.30m | 9:38AM0.50m | 2:43PM0.54m | 2:21AM0.34m | 4:22AM0.29m | 6:28PM0.44m | 5:27AM0.21m | 6:42PM0.38m | 6:12AM0.13m | 7:03PM0.34m | 6:50AM0.06m | 7:27PM0.30m | |||||||
 |  | |  |  | |  | |  | | | | | | | | | | | |
 | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 21 | 21 | 22 | 19 | 17 | 14 | 14 | 13 | 13 | 14 | 14 | 13 | 14 | 15 | 15 | 16 | 17 | 17 |
Feels °C | 20 | 21 | 20 | 22 | 17 | 13 | 9 | 11 | 9 | 11 | 11 | 10 | 9 | 13 | 13 | 13 | 15 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 7 | E 7 | S 7 | E 7 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 12 | SSE 13 | SSE 14 | SSE 16 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SE 12 |
| kJ | 57 | 71 | 53 | 52 | 34 | 23 | 495 | 336 | 287 | 269 | 379 | 569 | 1370 | 1856 | 1567 | 1042 | 669 | 572 | 392 |
Swell 2 Height (m) Direction Period (s) | S 3 | SSE 6 | SSE 6 | S 8 | E 7 | NW 4 | E 8 | E 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | E 7 | ENE 7 | — | — | — | — | SE 16 |
| kJ | 1 | 14 | 7 | 5 | 25 | 1 | 30 | 36 | 25 | 14 | 6 | 6 | 1 | 5 | — | — | — | — | 129 |
Swell 3 Height (m) Direction Period (s) | S 7 | SSE 9 | SSE 9 | SSE 6 | E 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 17 | 16 | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | NNW 3 | — | SSE 8 | S 10 | S 10 | S 9 | — | — | — | — | — | — | — | — | NE 3 | NE 4 |
| kJ | — | — | 2 | 4 | — | 154 | 1297 | 782 | 766 | — | — | — | — | — | — | — | — | 2 | 14 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 0 | 777 | 3 | 3 | 28 | 23 | 6 | 31 | 0 | 6 | 82 | 6 | 6 | 18 | 0 | 0 | 0 | 0 |
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.
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