Surf Forecasts:
Joaquina surf forecast from 25 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 6AM (local time) - 5ft (1.6m), 15s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 12PM (local time) - 5.5ft (1.7m), 15s period, SE swell with 1,212 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 9AM (local time) - 4.5ft (1.3m), 13s 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 Tuesday (Aug 25) at 9AM. The primary swell is predicted to be 1.3m and 13s 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 1.7m 15s and forecast to arrive on Wednesday (Aug 26) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Friday (Aug 28) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Tue 25th Aug) | 4.5ft (1.3m) 13s |
| Best Surf | 6AM (Wed 26th Aug) | 5ft (1.6m) 15s |
| Most Powerful | 12PM (Wed 26th Aug) | 5.5ft (1.7m) 15s |
Table - best surf conditions forecast for Joaquina over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s break down what’s coming for Joaquina.
We’ve got some decent pulses of swell this week, but it ain’t all glassy perfection. The clear standout is Wednesday the 26th of August, with solid 5ft to 6ft of SE groundswell rolling in at a long 15 seconds. That’s a meaty pulse with moderate to strong wave energy (1034 to 1216). The morning will be clean with light cross-off winds, but the afternoons get a bit lumpy as the breeze ramps up. That Wednesday morning session is the pick of the bunch – plenty of grunt for experienced surfers, and the long period will let the sandbars shape up nicely.
The rest of the first week is a mixed deal. Tuesday the 25th of August starts with a clean 4ft SSE swell under slight airs – surfable but not epic. Wave energy is moderate at 504. Thursday the 27th is similar in the morning, a touch smaller at 4ft but clean, with moderate energy (549). Then it drops off hard from Friday the 28th through Sunday the 30th – we’re looking at tiny, weak swell under 2ft, with energy as low as 7. That’s a flat spell, no good for riding.
Monday the 31st of August brings a small pulse of 4ft easterly swell (228 energy), but the period is short at 9 seconds, and the wind is okay in the morning. It’s a minor reprieve, not a standout.
From September 1st through the 4th, the wind gets messy. Tuesday the 1st has onshore wind over 19 mph, chopping up whatever small swell there is. Wednesday the 2nd offers a clean 3ft SE swell in the morning, but it’s weak at 215 energy and only 10 seconds of period. Just ordinary.
But mark your calendar for September 5th – Saturday morning – because we get another spike of 6ft SSE swell with a long 13-second period and energy pumping at 1001. The wind is offshore from the NNW at 16 mph. That’s a powerful, clean southerly groundswell. The catch: that wind is strong, and the swell is big enough that it’s expert territory, and it’s listed as “marginal” due to tides or conditions. It’s promising but uncertain this far out.
Water temperature sits at 66°F on the first day, which is pretty normal for the area this time of year – no thermal shock.
Joaquina is a very consistent, exposed sandbar that loves a SE swell direction, which is exactly what we’re getting. It’s often crowded, so expect company on the better days.
So here’s the bottom line: if you’re picking days, Wednesday the 26th of August morning is your best bet, and keep an eye on Saturday the 5th of September morning as a long-range one to watch.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Thu morning, min 13°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Sun night. Warm (max 22°C on Fri morning, min 18°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 13 | SSE 12 | SE 16 | SE 15 | SE 15 | SE 15 | SE 14 | SE 13 | SE 12 | SE 12 | SE 11 | SE 11 | SSE 10 | SSE 10 | E 9 | SSE 11 | S 6 | SSE 6 | E 9 | SE 7 | SE 7 |
Wave Graph | |||||||||||||||||||||
504 | 451 | 366 | 1034 | 1212 | 1034 | 549 | 342 | 178 | 68 | 31 | 18 | 10 | 10 | 239 | 11 | 4 | 14 | 196 | 36 | 29 | |
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-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | off | cross-off | cross-on | cross-on |
High Tide | 1:29PM0.84m | 00:49AM0.77m | 1:51PM0.87m | 1:16AM0.83m | 2:12PM0.88m | 1:43AM0.89m | 2:34PM0.87m | 2:12AM0.92m | 2:58PM0.85m | 2:44AM0.92m | 3:22PM0.81m | 3:19AM0.90m | 3:49PM0.75m | ||||||||
Low Tide | 7:27PM0.30m | 7:24AM0.00m | 7:52PM0.27m | 7:57AM-0.03m | 8:18PM0.26m | 8:30AM-0.04m | 8:45PM0.25m | 9:04AM-0.01m | 9:11PM0.25m | 9:38AM0.05m | 9:36PM0.26m | 10:15AM0.15m | 9:54PM0.27m | ||||||||
6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | |
— | 5:57 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 12 | 9 | 16 | 1 |
Temp °C | 15 | 16 | 16 | 19 | 19 | 18 | 21 | 20 | 19 | 22 | 21 | 20 | 21 | 21 | 19 | 21 | 21 | 20 | 20 | 19 | 18 |
Feels °C | 12 | 13 | 15 | 18 | 18 | 18 | 20 | 18 | 19 | 21 | 20 | 22 | 20 | 22 | 19 | 23 | 21 | 21 | 22 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 12 | SSE 12 | SE 15 | SE 15 | SE 15 | SE 14 | SE 13 | E 7 | E 8 | ENE 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
504 | 451 | 285 | 1034 | 1212 | 1034 | 549 | 342 | 94 | 145 | 206 | 210 | 210 | 225 | 239 | 160 | 164 | 168 | 196 | 157 | 101 | |
Swell 2 Height (m) Direction Period (s) | NE 7 | — | SE 16 | — | — | ENE 5 | ENE 6 | — | SE 12 | SE 12 | SE 11 | SE 11 | SSE 10 | SSE 10 | SE 11 | SE 5 | S 6 | SSE 6 | SSE 7 | SE 7 | SE 7 |
2 | — | 366 | — | — | 11 | 29 | — | 178 | 68 | 31 | 18 | 10 | 10 | 4 | 6 | 3 | 14 | 32 | 36 | 29 | |
Swell 3 Height (m) Direction Period (s) | — | — | ENE 4 | — | — | — | — | — | — | — | — | — | — | — | SSE 11 | SSE 11 | SE 10 | SE 9 | — | — | — |
— | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 23 | 11 | 4 | 3 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNE 3 | NNE 3 | — | NE 3 | NE 5 | NE 6 | ENE 6 | N 3 | NNW 3 | NE 8 | — | SSW 2 | SSE 4 | SSW 4 | — | — | — | — | — | — |
— | 2 | 1 | — | 4 | 47 | 109 | 44 | 1 | 1 | 527 | — | 1 | 2 | 10 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 18 | 0 | 0 | 61 | 0 | 0 | 227 | 4 | 4 | 60 | 3 | 6 | 14 | 6 | 3 | 53 | 3 | 0 | 6 | 27 |
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.











