Surf Forecasts:
Joaquina surf forecast from 16 Aug 2026:
- Best quality surf: Thursday 20 Aug, 12AM (local time) - 2.5ft (0.8m), 8s period, E swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 3AM (local time) - 4ft (1.2m), 12s period, SSE swell with 433 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 12AM (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 12AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.2m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Joaquina in the next 16 days are 1.2m 12s and forecast to arrive on Sunday (Aug 23) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Sunday (Aug 16) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 20th Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 12AM (Thu 20th Aug) | 2.5ft (0.8m) 8s |
| Most Powerful | 3AM (Sun 23rd Aug) | 4ft (1.2m) 12s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's take a good, hard look at what's on the table for the next couple of weeks. It's a real mixed bag, and you're gonna need some patience.
We're starting off with a bit of a flat spell. The first few days are looking pretty grim for a paddle. Sunday morning the 16th might have a small bump of 5 ft, but it's a weak, short-period E swell with a cross-offshore breeze. It's not worth your time. From Sunday afternoon right through to Wednesday the 19th, the wave heights drop to almost nothing. It's a proper lull.
We do get a tiny pulse on Thursday morning the 20th, with a 2 ft SSE swell, but it's only 7 seconds (very short period) and the energy is weak (55). That's barely surfable. Then we get another lull until the 22nd when the energy starts to build, but it's all onshore or cross-onshore wind, making a mess of things.
The real standout in this entire window is Sunday morning, the 23rd of August at Joaquina. This is the one to circle. The forecast shows a 6 ft SSE groundswell with a period of 9 seconds, and the wind is forecast to drop to *glassy* conditions from the SSW. That's a solid moderate wave energy (521) and it's going to be clean as a whistle. The swell direction is from the SSE, which is a touch different from the optimum SE direction for Joaquina, but with glassy conditions and that size, it's going to be the best waves we've seen in a while. This is a sandbar break that is very consistent, but it does get crowded often, so get there early. The water temperature is sitting at 65°, which is pretty normal for this time of year.
Now, after that Sunday morning session, the wind goes onshore again Sunday afternoon and through Monday the 24th, so it gets messy. The next good opportunity doesn't pop up until the following week. On Wednesday the 26th of August, we've got a really nice signal. The morning shows a 4 ft SE swell with a solid 12-second period, and a light offshore NNW breeze at 6 mph. The energy is strong (403), and it's a groundswell. That's a promising session, though it's a week out so keep an eye on it. The afternoon stays clean with a cross-offshore breeze.
The last standout is way down the line, on Monday the 31st of August. The morning shows a 5 ft E swell with a very short period of 6 seconds and a clean cross-offshore breeze. The energy is strong (360), but that short period means it will be a bit crumbly and less powerful. Still, it's the only game in town that far out for a clean wave.
So, to sum it up: the next week is mostly a write-off. Your best bet is the glassy Sunday morning on the 23rd. After that, keep an eye on the 26th and the 31st for some cleaner conditions. It's not a classic run, but there are a few gems in there.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun morning. Warm (max 23°C on Tue afternoon, min 18°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Thu night, min 16°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 | E 8 | E 8 | SE 10 | SSE 10 | S 11 | SE 10 | S 10 | E 14 | S 4 | E 13 | E 8 | SSE 6 | E 8 | ESE 7 | E 7 | SSE 6 | SSE 8 | SSE 9 | SSE 10 | SSE 12 |
Wave Graph | |||||||||||||||||||||
228 | 196 | 167 | 25 | 10 | 2 | 4 | 3 | 4 | 8 | 3 | 72 | 23 | 40 | 35 | 82 | 18 | 55 | 169 | 352 | 426 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | on | glassy | cross-on | on | cross-on |
High Tide | 3:54PM0.70m | 3:56AM0.81m | 4:14PM0.67m | 4:34AM0.74m | 4:34PM0.64m | 5:18AM0.65m | 4:52PM0.60m | 6:21AM0.56m | 1:10PM0.55m | 12:32PM0.61m | 12:33PM0.68m | 11:20PM0.51m | |||||||||
Low Tide | 10:12AM0.19m | 9:14PM0.30m | 10:11AM0.28m | 9:31PM0.27m | 10:02AM0.36m | 9:58PM0.27m | 9:57AM0.44m | 10:32PM0.30m | 9:38AM0.50m | 2:43PM0.54m | 2:21AM0.34m | 4:22AM0.29m | 6:28PM0.44m | ||||||||
6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | |
— | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 3 |
Temp °C | 19 | 19 | 19 | 20 | 20 | 18 | 22 | 23 | 21 | 20 | 20 | 19 | 20 | 20 | 21 | 21 | 19 | 16 | 15 | 15 | 14 |
Feels °C | 19 | 19 | 19 | 19 | 18 | 17 | 21 | 22 | 23 | 19 | 19 | 21 | 19 | 18 | 21 | 19 | 17 | 16 | 14 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 7 | E 7 | E 8 | E 8 | E 8 | SSE 10 | SSE 12 |
228 | 196 | 167 | 142 | 161 | 216 | 171 | 185 | 144 | 108 | 82 | 72 | 57 | 40 | 35 | 82 | 93 | 80 | 44 | 352 | 426 | |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SE 10 | SSE 10 | SE 10 | SSE 10 | S 11 | SE 10 | S 10 | S 9 | S 4 | E 13 | SSE 11 | SSE 6 | SE 6 | ENE 8 | S 8 | SSE 6 | SSE 8 | ENE 8 | E 8 | E 8 |
75 | 51 | 40 | 25 | 10 | 2 | 4 | 2 | 2 | 1 | 3 | 12 | 23 | 17 | 38 | 5 | 18 | 55 | 71 | 30 | 31 | |
Swell 3 Height (m) Direction Period (s) | E 14 | ESE 13 | E 13 | E 12 | E 12 | S 9 | SE 8 | SE 8 | E 14 | S 9 | S 9 | S 7 | SE 5 | SSE 9 | S 8 | SE 6 | SSE 8 | S 17 | — | — | — |
15 | 18 | 13 | 3 | 3 | 2 | 3 | 3 | 4 | 2 | 1 | 4 | 10 | 8 | 5 | 6 | 13 | 6 | — | — | — | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | N 3 | NNW 3 | NNE 4 | N 4 | N 4 | N 4 | SSW 3 | S 4 | SSE 3 | — | — | NE 4 | N 3 | SSW 3 | — | — | SSE 9 | — | — |
539 | 365 | 1 | 1 | 19 | 21 | 28 | 28 | 4 | 8 | 1 | — | — | 12 | 6 | 1 | — | — | 169 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 12 | 49 | 4 | 61 | 12 | 49 | 19 | 3 | 3 | 27 | 3 | 0 | 60 | 3 | 6 | 27 | 27 | 27 | 30 | 6 |
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.











